Biology Quiz Questions (GO THROUGH THESE)

Ribbon worms have a unique __________ that is used to capture prey. A. proboscis B. radula C. nematocyst D. scolex E. beak

A. proboscis

Which of the following arthropod groups is almost exclusively aquatic in habitat? A. Arachnida B. Crustacea C. Insecta D. Chilopoda E. Diplopoda

B. Crustacea

Which class of animals has the largest number of species? A. Arachnida B. Insecta C. Gastropoda D. Bivalvia E. Arthropoda

B. Insecta

Which of the following terms is associated with polychaetes? A. radula B. metamorphosis C. parapodia D. mantle E. visceral mass

C. parapodia

Most sponges gain nutrition as: A. parasites B. predators C. autotrophs D. herbivores E. suspension feeders

E. suspension feeders

T/F Angina pectoris is another name for a myocardial infarction.

False

T/F Antibiotics can be used to treat viral infections.

False

T/F Archaeans cause several important human diseases.

False

T/F By definition, an animal having a closed circulatory system will also have a hemocoel.

False

T/F Penicillin is produced by a bacteria.

False

T/F Red colored light triggers stomatal opening.

False

T/F Members of the Ecdysozoa are characterized by having a cuticle.

True

T/F One hypothesis for why humans have armpit and groin hair is that it amplifies pheromones.

True

T/F Plant viruses typically do not kill their plant host.

True

T/F The portion of a mycorrhizal fungus that penetrates the cell walls of the root cortex is called an arbuscule.

True

T/F The similarity between the bodies of sharks and dolphins is an example of convergent evolution.

True

__________ are Archaea that are typically found in very salty environments. a. Extreme halophiles b. Extreme thermophiles c. Pyrrhanogens d. Methanogens e. Psychrophiles

a. Extreme halophiles

A plant with parallel veins and floral parts in threes or multiples of three would be classified as: a. a monocot b. a gymnosperm c. a eudicot d. a gnetophyte e. a cotyledonous plant

a. a monocot

The ability of animals to adjust to seasonal changes in temperature is called: a. acclimatization b. estivation c. homeostatic adjustment d. torpor e. hibernation

a. acclimatization

The __________ is the male sexual structure that produces sperm in plants. a. antheridium b. archegonium c. stoma d. sporangium e. strobilus

a. antheridium

What group of organisms fixes nitrogen? a. bacteria b. earthworms c. fungi d. protists e. algae

a. bacteria

Viruses that attack bacteria are called: a. bacteriophages b. bacteriods c. prions d. virons e. viroids

a. bacteriophages

Which chordate group has the most species? a. bony fishes b. reptiles c. amphibians d. mammals e. cartilaginous fishes

a. bony fishes

The leafy fern that you might have as a house plant is the __________ generation. a. diploid sporophyte b. diploid gametophyte c. haploid sporophyte d. haploid gametophyte e. triploid sporophyte

a. diploid sporophyte

Which layer of cells controls the movement of nutrient minerals entering the xylem in the root's interior? a. endodermis b. pericycle c. epidermis d. cortex e. periderm

a. endodermis

Which of the following is not a reason to explain why fewer animals live in freshwater than in the ocean? a. freshwater generally requires less energy for osmoregulation b. freshwater generally has a less constant temperature environment c. freshwater generally has a less constant oxygen environment d. freshwater generally is more turbid e. freshwater generally contains less food

a. freshwater generally requires less energy for osmoregulation

Which tissue system of the plant body is largely responsible for photosynthesis? a. ground tissue system b. vascular tissue system c. dermal tissue system d. primary tissue system e. secondary tissue system

a. ground tissue system

All Echinodermata are found: a. in marine habitats b. in freshwater c. on land d. in cold water e. in shallow ocean waters

a. in marine habitats

Flowers that are strongly oderiferous and blue or UV purple in color would most likely be pollinated by: a. insects b. birds c. bats d. wind e. small rodents

a. insects

The organization of muscle tissue from a macroscopic level to a microscopic one is as follows: a. muscle fibers->myofibrils->sarcomeres b. muscle fibers ->sarcomeres ->myofibrils c. myofibrils->muscle fibers->sarcomeres d. sarcomeres->myofibrils->muscle fibers e. myofibrils->muscle fibers->sarcomeres

a. muscle fibers->myofibrils->sarcomeres

Rhizobia help plants meet their __________ by producing __________. a. nitrogen; NH3 b. phosphorus; PO4 c. potassium; K2O d. nitrogen; NO3 e. phosphorus; ATP

a. nitrogen; NH3

Which of the following would describe an animal that lays eggs? a. oviparous b. viviparous c. ovoviviparous d. placental e. eutherial

a. oviparous

Based on the most recent data available, the protist kingdom is: a. paraphyletic b. monophyletic c. composed only of unicellullar species d. composed of both eukaryotes and prokaryotes e. mostly terrestrial

a. paraphyletic

At the core of an herbaceous eudicot stem is: a. pith b. collenchyma c. sclerenchyma d. vascular cambium e. phloem

a. pith

Certain members of this group are ecologically important in the formation of coral reefs. a. red algae b. amoebas c. diatoms d. slime molds e. green algae

a. red algae

An example of homologous structures is the wing of a bat and: a. the arm of a human b. the wing of a beetle c. the tail of a whale d. the leg of a chimpanzee e. the dorsal fin of a shark

a. the arm of a human

Which of the following statements does not describe the leaf epidermis? a. the cells all contain chloroplasts and photosynthesize b. some of the cells are modified to form trichomes c. the cells are covered by a waxy cuticle d. the cells are relatively transparent e. it contains stomata, each of which is flanked by two guard cells

a. the cells all contain chloroplasts and photosynthesize

Xylem transports water and dissolved nutrient minerals in which direction? a. upward b. downward c. inward laterally d. outward laterally e. both upward and downward

a. upward

_____ have the most efficient respiratory system of any living vertebrate. a. Amphibians b. Birds c. Mammals d. Fish e. Nonavian reptiles

b. Birds

You find a protist that has a single flagellum surrounded by a collar of microvilli. You correctly conclude that this organism is: a. a cellular slime mold b. a choanoflagellate c. a plasmodial slime mold d. not a unikont e. not motile

b. a choanoflagellate

One purpose of the lymphatic system is to: a. transport nutrients and oxygen b. absorb lipids from digestive tract c. block the transport of blood proteins d. produce red blood cells e. deliver carbon dioxide to the heart

b. absorb lipids from digestive tract

Which of the following is not a function of stems? a. modified for asexual reproduction b. absorb nutrient minerals c. produce new tissues d. transport water and dissolved nutrient minerals e. support leaves and flowers

b. absorb nutrient minerals

Growth that results in an increase in stem or root length occurs in which specific area of the plant? a. lateral meristem b. apical meristem c. vascular cambium d. cork cambium e. periderm

b. apical meristem

Sometimes plants produce embryos in seeds without meiosis and fusion of gametes. This process is known as: a. coevolution b. apomixis c. self-pollination d. mitosis e. suckering

b. apomixis

The protein coat of a virus is called the: a. capsule b. capsid c. exospore d. phage e. pilus

b. capsid

Most bacteria are: a. photoheterotrophs b. chemoheterotrophs c. photoautotrophs d. anaerobic e. chemoautotrophs

b. chemoheterotrophs

Periderm is produced by: a. xylem b. cork cambium c. pith d. cortex e. phloem

b. cork cambium

Hair follicles and blood vessels are found in which layer of the skin? a. epidermis b. dermis c. subcutaneous tissue d. stratum basale e. stratum corneum

b. dermis

Lytic phages: a. infect viruses b. destroy bacteria c. infect but do not destroy bacteria d. infect virions e. infect prions

b. destroy bacteria

Gram-positive bacteria would stain __________ in a gram stain because of a thick layer of __________ in their cell walls. a. green; peptidoglycan b. purple; peptidoglycan c. green; cellulose d. purple; polysaccharides e. red; polysaccharides

b. purple; peptidoglycan

Ferns lack: a. rhizomes b. seeds c. vascular tissue d. sexual reproduction e. photosynthesis

b. seeds

Which of the following is not a part of the axial skeleton? a. skull b. vertebral column c. ribs d. pelvis e. sternum

d. pelvis

Who am I? I cause African sleeping sickness. a. Trichomonas b. Giardia c. Plasmodium d. Saprolegnia e. Trypanosoma

e. Trypanosoma

Plants connected by mycorrhizal fungi: a. must be of the same species b. can only exchange carbon in one direction c. are an excellent example of a parasitic relationship d. are uncommon e. exchange organic materials in both directions

e. exchange organic materials in both directions

Which of the following would not be a component of normal urine? a. water b. urea c. bile pigments d. salts e. glucose

e. glucose

Fungi parasitic on plants produce specialized hyphae, called __________, that penetrate the host. a. soredia b. secondary mycelia c. basidia d. asci e. haustoria

e. haustoria

A taproot system originates from an enlarging: a. adventitious root b. lateral root c. root cap d. root hair e. radicle

e. radicle

Cnidarians are __________. A. triploblastic B. protostomes C. diploblastic D. bilateral E. coelomate

C. diploblastic

Within the phylum Cnidaria, corals are most closely related to: A. Hydra B. jellyfish C. sea anemones D. Portuguese man-of-war E. box jellies

C. sea anemones

T/F A true coelom develops within the ectoderm.

False

T/F Cartilage has a plentiful blood supply.

False

T/F Cephalopods have an open circulatory system.

False

T/F Chimps have a greater density of hair follicles than humans do.

False

T/F Chytrids produce spores that lack a flagellum.

False

T/F Club mosses belong to the phylum Bryophyta.

False

T/F Echinoderms are characterized by bilateral symmetry in adults .

False

T/F Eosinophils are filled with hemoglobin.

False

T/F Humans prefer truffles that produce a scent that in nature attracts squirrels.

False

T/F In deuterostomes the blastopore develops into the mouth.

False

T/F Red tides are caused by red algae.

False

T/F The amphibian heart consists of two atria and two ventricles.

False

T/F The chordate nerve cord is hollow and located ventrally.

False

T/F The diaphragm contracts to cause exhalation.

False

T/F The inferior vena cava transports blood to the left atrium.

False

T/F Transformation, conjugation, and transduction are forms of vertical gene transfer for prokaryotes.

False

T/F All dolphins are mammals, all mammals have kidneys; therefore all dolphins have kidneys. This statement is an example of deductive reasoning.

T

T/F It is ok to use the genus name without the specific epithet to refer to all organisms in a genus. For example, the lion is in the genus Panthera.

T

T/F A fruit develops from the ovary wall .

True

T/F A growth ring is composed of xylem.

True

T/F A lichen is a combination of a fungus and a photoautotroph.

True

T/F A serous membrane lines a body cavity that does not open to the outside of the body.

True

T/F An example of a trichome is a root hair.

True

T/F Animals share a common origin with choanoflagellates.

True

T/F Annelids are segmented worms.

True

T/F Between 2004-2007, no infants were killed by the chickenpox virus in the US.

True

T/F Calcium ions are stored in the sarcoplasmic reticulum.

True

T/F Conifers are gymnosperms.

True

T/F Foraminiferans are Rhizarians.

True

T/F Green algae are most closely related to plants.

True

T/F HIV is an example of a retrovirus.

True

T/F If a plant produces microspores and megaspores, then by definition it is heterosporous.

True

T/F In a commensal relationship, one partner benefits and the other is relatively unaffected.

True

T/F In algae, gametangia are generally unicellular.

True

T/F In plants, xylem is associated with the transportation of water and dissolved minerals.

True

T/F Insects have an excretory system consisting of Malphighian tubules.

True

T/F Retroviruses have a DNA polymerase called reverse transcriptase which transcribes the RNA genome into a DNA intermediate.

True

T/F The body of a cnidarian is supported by a hydrostatic skeleton.

True

T/F The human body's "thermostat" is the hypothalamus.

True

T/F Viruses are capable of altering the behavior/properties of their host cell.

True

Smooth muscle has all of the following characteristics except: a. being attached to bones via tendons b. having sustained contractions c. requiring less ATP to maintain a high level of force d. contracting slowly e. having muscle fibers capable of greater shortening than striated muscle

a. being attached to bones via tendons

The most common mode of reproduction in bacteria is: a. binary fission b. transformation c. transduction d. conjugation e. mitosis

a. binary fission

A vein always carries: a. blood to the heart b. blood from the heart c. oxygen-rich blood d. oxygen-poor blood e. blood poor in carbon dioxide

a. blood to the heart

Ectothermic animals: a. depend on heat from the external environment to adjust their body temperatures b. may dilate blood vessels to increase blood flow and heat to the skin c. maintain a relatively constant body temperature despite external temperatures d. may have feathers to keep them insulated e. may have body fat to keep them insulated

a. depend on heat from the external environment to adjust their body temperatures

Alternation of generations in plants refers to the alternation of: a. diploid and haploid stages b. male and female stages c. meiotic and mitotic stages d. spore and seed stages e. thallus and leaf stages

a. diploid and haploid stages

What makes up most of the mass of an individual mushroom? a. underground mycelium b. above ground mycelium c. underground fruiting body d. above ground ascocarp e. underground ascocarp

a. underground mycelium

The sori of most ferns are found on the: a. fiddleheads b. fronds c. rhizomes d. prothalli e. antheridia

b. fronds

The __________ generation is dominant in mosses, as it can live independently. a. haploid sporophyte b. haploid gametophyte c. diploid sporophyte d. diploid gametophyte e. triploid sporophyte

b. haploid gametophyte

Animals apparently evolved: a. in freshwater b. in the ocean c. during the Cambrian explosion d. in swamps e. in forests

b. in the ocean

Which of the following is an example of a positive feedback mechanism? a. increase in body temperature when exposed to cold b. increased muscle contractions during labor c. decreased insulin production in response to low blood sugar d. increased respiration rate in response to decreased blood pH e. both choices A and B are correct

b. increased muscle contractions during labor

A good hypothesis: a. can be proven to be true b. is falsifiable c. can only be tested once d. is a statement of fact e. represents important conclusions

b. is falsifiable

Two species that are in the same family are not necessarily in the same _____: a. kingdom b. order c. phylum d. genus e. class

b. order

The evolutionary history of a group of organisms from a common ancestor is termed: a. biohistory b. phylogeny c. phrenology d. phenetics e. species origenetics

b. phylogeny

Small hairlike structures on the surface of bacteria are called: a. capsids b. pili c. chromatids d. plasmids e. virions

b. pili

The main difference between protonephridia and metanephridia is that: a. protonephridia are involved in osmoregulation, while metanephridia are involved in excretion b. protonephridia consist of blind flame cells, while metanephridia consist of tubules open at both ends c. protonephridia are involved in excretion, while metanephridia are involved in osmoregulation d. protonephridia consist of tubules open at both ends, while metanephridia consist of blind flame cells

b. protonephridia consist of blind flame cells, while metanephridia consist of tubules open at both ends

Cytoplasmic projections called ________ enable certain kinds of protists to move from place to place. a. plasmodesmata b. pseudopods c. flagella d. cilia e. trichomes

b. pseudopods

Deuterostomes are characterized by __________ and __________ cleavage. a. radial; determinate b. radial; indeterminate c. spiral; determinate d. spiral; indeterminate e. spiral; protostome

b. radial; indeterminate

After fertilization in angiosperms, the ovule develops into the: a. ovary b. seed c. pollen grain d. stigma e. fruit

b. seed

Which of the following structures is considered to be the pacemaker of the heart? a. atrioventricular node b. sinoatrial node c. atrioventricular bundle d. Purkinje fibers e. intercalated discs

b. sinoatrial node

The ureters connect: a. the bladder to the body exterior b. the kidney to the bladder c. the bladder to the urethra d. the kidney to the body exterior e. the kidney to the urethra

b. the kidney to the bladder

Which of the following statements represents a good scientific hypothesis? a. shoofly pie tastes good b. the swimming speed of Artemia increases at higher temperatures c. there is life after death d. hemophilia is also known as "bleeder's disease" e. carbon emissions should be regulated by the federal government

b. the swimming speed of Artemia increases at higher temperatures

To be diagnosed as having hypertension, you consistently will have a diastolic pressure of ______ mm Hg and a systolic pressure of _____ mm Hg. a. 120; 80 b. 80; 120 c. 90; 140 d. 140; 90 e. 120; 70

c. 90; 140

The two groups representing the "jawless" fishes are: a. Cephalochordata and Placoderms b. Chondrichthyes and Actinistia c. Myxini and Petromyzontida d. Dipnoi and Actinistia e. Placoderms and Petromyzontida

c. Myxini and Petromyzontida

The original two Kingdoms that were established to organize living organisms were: a. Protista and Animalia b. Eukaryotae and Prokaryotae c. Plantae and Animalia d. Plantae and Eukarya e. Eubacteria and Eukarya

c. Plantae and Animalia

__________ is the predominant photosynthetic product carried in phloem. a. Glucose b. Cellulose c. Sucrose d. Maltose e. Fructose

c. Sucrose

What is the correct format for the scientific name of corn? a. zea Mays b. Zea Mays c. Zea mays d. Zeamays e. zea mays

c. Zea mays

Which of the following is a nitrogenous waste of animals? a. amino acids b. carbon dioxide c. ammonia d. water e. sugars

c. ammonia

The only living descendant of the dinosaurs are the: a. tuatara b. monotremes c. birds d. turtles e. amphibians

c. birds

An example of a member of phylum Zygomycota is: a. the common edible mushroom b. yeast c. black bread mold d. the truffle e. a shelf fungi

c. black bread mold

Viruses: a. are very tiny cells on the order of 500 mm b. don't contain their own DNA or RNA c. cannot reproduce on their own d. are classified with bacteria e. have nuclei

c. cannot reproduce on their own

Characteristics shared between green algae and plants include: a. stomata in the surface of leaves b. multicellular gametangia c. chlorophylls a and b in plastids d. a waxy cuticle e. stomata in the surface of stems

c. chlorophylls a and b in plastids

Ectomycorrhizae: a. form arbuscules b. are intracellular c. coat the plant root d. have glomeromycetes as the fungal component e. supply plants with organic molecules

c. coat the plant root

A difference between Linnaeus' classifications and current classifications is that: a. current classifications group organisms principally based on shared features b. there are fewer classification levels now c. current classifications group organisms primarily based on shared ancestry d. Linnaeus' classification took into account the theory of evolution e. there were more species classified by Linnaeus than there are currently

c. current classifications group organisms primarily based on shared ancestry

Which classification level would contain the greatest number of species? a. class b. phylum c. domain d. family e. order

c. domain

The four basic animal tissues are: a. connective, digestive, nervous, and respiratory b. blood, bone, connective, and epithelial c. epithelial, connective, muscle, and nervous d. digestive, nervous, reproductive, and respiratory e. circulatory, excretory, respiratory, and sensory

c. epithelial, connective, muscle, and nervous

The spines of a cactus are actually modified: a. branches b. stems c. leaves d. roots e. trichomes

c. leaves

A person with fair skin produces less __________ than a person with dark skin. a. sebum b. keratin c. melanin d. melatonin e. mucous

c. melanin

Photosynthesis occurs chiefly in the leaf's: a. epidermis b. bundle sheath c. mesophyll d. trichomes e. vascular bundles

c. mesophyll

Most conifers have separate male and female reproductive parts on the same tree. This condition is referred to as: a. deciduous b. dioecious c. monoecious d. homosporous e. heterosporous

c. monoecious

A taxon that includes all the descendants of an ancestor is called: a. paraphyletic b. homophyletic c. monophyletic d. phenetic e. polyphyletic

c. monophyletic

Monocot leaves typically have: a. alternately palmate venation b. netted venation c. parallel venation d. alternately pinnate venation e. no venation

c. parallel venation

All woody plants are: a. annuals b. biennials c. perennials d. deciduous e. evergreen

c. perennials

Which of these diseases is not caused by a virus? a. AIDS b. Ebola c. tetanus d. flu e. rabies

c. tetanus

What do ribbon worms and flatworms have in common? a. they are coelomates b. they are pseudocoelomates c. they are acoelomates d. they have two germ layers e. they are deuterostomes

c. they are acoelomates

Lymphatic tissues include all of the following except: a. tonsils b. lymph nodes c. thyroid gland d. spleen e. thymus

c. thyroid gland

Which animal phylum has an asymmetrical body plan? a. Cnidaria b. Ctenophora c. Echinodermata d. Porifera e. Annelida

d. Porifera

The tetrapods include: a. fish, amphibians, reptiles, and mammals b. reptiles and mammals c. amphibians and reptiles d. amphibians, reptiles, birds, and mammals e. reptiles, birds and mammals

d. amphibians, reptiles, birds, and mammals

In a flowering plant, the __________ is the site of meiosis and, ultimately, the production of pollen. a. stigma b. style c. carpel d. anther e. filament

d. anther

The cell walls of fungi are composed of: a. cellulose b. lipids c. glycogen d. chitin e. chlorophyll

d. chitin

Some protists consist of a single cell with multiple nuclei. This condition is known as: a. mycelium b. alternation of generations c. multicellular d. coenocytic e. colonial

d. coenocytic

The bulk of an herbaceous eudicot root consists of loosely arranged parenchyma cells in the: a. endodermis b. pericycle c. epidermis d. cortex e. periderm

d. cortex

Diploblastic animals, such as cnidarians and __________, have only two germ layers, ectoderm and __________. a. sponges; ectoderm b. sponges; mesoderm c. ctenophores; mesoderm d. ctenophores; endoderm e. ctenophores; metaderm

d. ctenophores; endoderm

In flowering plants, the __________ generation is dominant. a. haploid gametophyte b. diploid gametophyte c. haploid sporophyte d. diploid sporophyte e. triploid endosperm

d. diploid sporophyte

The state of torpor caused by lack of food or water during periods of high temperature is called: a. acclimatization b. hibernation c. conformation d. estivation e. integration

d. estivation

Which of the following cell types would not be found in connective tissue? a. macrophages b. fibroblasts c. chondrocytes d. glial cells e. adipose cells

d. glial cells

A basic difference between gymnosperms and angiosperms is: a. gymnosperms produce seeds that are enclosed within a fruit, while angiosperms produce exposed seeds b. gymnosperms produce flowers that have floral parts arranged in threes, or multiples of threes, while angiosperms have floral parts arranged in fours or in multiples of four c. gymnosperms produce only cones, while angiosperms produce both flowers and cones d. gymnosperms produce exposed seeds, while angiosperms produce seeds enclosed within a fruit e. gymnosperms produce "naked" ovules, while angiosperms produce "naked" seeds

d. gymnosperms produce exposed seeds, while angiosperms produce seeds enclosed within a fruit

A __________ is a filament that makes up the vegetative (non-reproductive) body of most fungi. a. thallus b. protonema c. fruiting body d. hypha e. septum

d. hypha

Which statement concerning a scientific theory is FALSE? a. it may suggest practical applications b. it predicts new facts c. it is based on a number of hypotheses d. it is unchangeable e. it is supported by many observations

d. it is unchangeable

Accumulation of __________ contributes to muscle fatigue. a. ATP b. creatine phosphate c. glycogen d. lactic acid e. carbon monoxide

d. lactic acid

Reduction in __________ growth is used as a sensitive indicator of air pollution. a. mycorrhizae b. mushroom c. mold d. lichen e. puff balls

d. lichen

The Archaea differ from the Bacteria and eukaryotes by having different __________ in their cell membranes, but the Archaea are similar to eukaryotes in their __________ process. a. sugars; translation b. sugars; reproduction c. lipids; cell division d. lipids; translation e. proteins; transcription

d. lipids; translation

Bone cells called __________ continually remodel bone. a. chondrocytes b. canaliculi c. fibroblasts d. osteocytes e. lamellae

d. osteocytes

All of the following are advantages of gas exchange in air, as compared to gas exchange in water, except: a. air is less dense than water b. air contains a higher concentration of oxygen c. less energy is needed to move air over a gas exchange surface d. oxygen diffuses more slowly through air than water e. air is less viscous than water

d. oxygen diffuses more slowly through air than water

Which of the following protist group does not have flagellated cells? a. green algae b. brown algae c. euglenoids d. red algae e. choanoflagellates

d. red algae

Vascular cambium gives rise to which of the following tissues? a. primary phloem b. periderm c. epidermis d. secondary xylem e. cork cambium

d. secondary xylem

If we wanted to examine the effect of a fertilizer on the size of zucchini produced, we would need to establish both experimental and control groups. The control group for this experiment would be defined by the following conditions: a. soil, fertilizer, water, sun, and no zucchini seeds b. soil, fertilizer, water, sun, and zucchini seeds c. soil, water, sun, and no zucchini seeds d. soil, water, sun, and zucchini seeds e. soil, water, and sun

d. soil, water, sun, and zucchini seeds

The ventilation of insect tracheal tubes is dependent upon the presence of: a. pores b. alveoli c. gills d. spiracles e. opercula

d. spiracles

Adult tunicates resemble __________ and are __________. a. eels; carnivorous b. corals; photosynthetic c. starfish; carnivorous d. sponges; filter feeders e. earthworms; detritivores

d. sponges; filter feeders

Which structure is used to help regulate buoyancy of fish? a. kidney b. stomach c. intestine d. swim bladder e. ureter

d. swim bladder

The primary problem animals faced in adapting to life on land was: a. finding a mate in the new environment b. being able to move around in the new environment c. the presence of predators, which was not a problem in the ocean d. the dry atmosphere e. acquiring enough oxygen

d. the dry atmosphere

Which statement about asexual reproduction is true? a. the advantage of asexual reproduction is that it results in new gene combinations b. two parents are required for successful asexual reproduction c. the process of meiosis takes place in the parent and results in four haploid cells d. the offspring of asexual reproduction are genetically identical to the parent e. asexual reproduction requires the fusion of two haploid gametes

d. the offspring of asexual reproduction are genetically identical to the parent

The first bacterium that was clearly identified as the cause of an infectious disease was: a. Legionella pneumophila, which causes Legionnaires' disease b. Chlamydia sp., which causes pelvic inflammatory disease in women c. Clostridium botulinum, which causes botulism d. Vibrio cholerae, which causes cholera e. Bacillus anthracis, which causes anthrax

e. Bacillus anthracis, which causes anthrax

Class __________ includes mostly extinct species and a few current species such as feather stars and sea lilies. a. Asteroidea b. Holothuroidea c. Ophiuroidea d. Echinoidea e. Crinoidea

e. Crinoidea

The most closely related animal to vertebrates are the: a. Hemichordata b. Urodela c. Cephalochordata d. Ophiuroidea e. Urochordates

e. Urochordates

Mammalian red blood cells: a. are phagocytic b. contain a lobed nucleus c. have a one-day lifespan d. are produced in the liver e. are produced in response to erythropoietin

e. are produced in response to erythropoietin

Which of the following statements concerning gymnosperms and angiosperms is false? a. both groups are heterosporous b. in both groups the sporophyte generation is dominant c. both groups posses vascular tissues d. both groups produce seeds e. both groups have free-living gametophytes

e. both groups have free-living gametophytes

Which of the following examples demonstrates a mutualistic relationship? a. mycorrhizae b. rhizobia and root nodules c. soil fungus and soil bacteria d. mistletoe and its host e. both mycorrhizae and rhizobial/root nodules

e. both mycorrhizae and rhizobial/root nodules

Which of the following is not a characteristic of any animal? a. locomotion at some time during the life cycle b. multicellular eukaryotes c. heterotrophic d. sexual reproduction involving motile sperm e. cell wall

e. cell wall

Most flowers are pollinated by which method? a. wind b. birds c. bats d. water e. insects

e. insects

Which of the following statements about keratin is false? a. it is a protein molecule b. it is manufactured by epidermal cells c. it gives strength to the skin d. it acts as an evaporative barrier to prevent excess water loss e. it facilitates diffusion across the body surface

e. it facilitates diffusion across the body surface

Echinoderms are unusual invertebrates as they have all of the following except: a. an endoskeleton b. spiny skin c. a water vascular system d. pedicellariae present in some classes e. segmentation

e. segmentation

Xylem is composed of all of the following cell types except: a. tracheids b. vessel elements c. fibers d. parenchyma e. sieve tube elements

e. sieve tube elements

During swallowing, __________ closes off the __________ so food cannot enter the lower airway. a. the pleural membrane; trachea b. cartilage; larynx c. the epiglottis; esophagus d. the pharynx; trachea e. the epiglottis; larynx

e. the epiglottis; larynx

A __________ is an underground stem that is greatly enlarged for food storage. a. sucker b. runner c. plantlet d. stolon e. tuber

e. tuber

Which of the following is not a characteristic shared by all chordates at some point in their life cycle? a. possession of a coelom b. being triploblastic c. notochord d. pharyngeal gill slits e. vertebrae

e. vertebrae