Unit 5: The Diversity Life
Cephalization a) evolved along with bilateral symmetry b) is the development of a digestive system c) is associated with radial symmetry d) involves a concentration of excretory organs e) first evolved in arthropods
a) evolved along with bilateral symmetry
The feeding stage of plasmodial slime molds is a multicelluleate a) plasmodium b) pseudoplasmodium c) pseudopodium d) gametangium e) mycelium
a) plasmodium
Amoebas move and obtain food by means of a) pseudopodia b) flagella c) cilia d) gametangia e) trichocysts
a) pseudopodia
Protosomes are characterized by a) spiral cleavage b) indeterminate cleavage c) enterocoely d) radial symmetry e) a distinctive body plan that includes a pseudocoelom
a) spiral cleavage
Which of the following belong to subphylum Hexapoda? a) insects b) horseshoe crabs c) crustaceans d) centipedes e) spiders
a) insects
A shark is characterized by a) placoid scales b) bony skeleton c) water vascular system d) amnion e) muscular diaphragm
a) placoid scales
Which of the following is not an adaptation of parasitic life? a) production of a few well-protect eggs b) hooks c) suckers d) reduced digestive system e) intermediate host
a) production of a few well-protect eggs
Arrange the following animals to reflect an accepted sequence of evolution: 1. lungfish 2. reptile 3. amphibian 4. bird a) 3, 1, 2, 4 b) 1, 3, 2, 4 c) 2, 1, 3, 4 d) 1, 2, 3, 4
b) 1, 3, 2, 4
The germ layer that gives rise to the outer covering of the body and the nervous system is the a) gastroderms b) ectoderm c) contractile layer d) endoderm e) mesoderm
b) ectoderm
Which of the following is not characteristic of birds? a) feathers b) ectothermic c) amnion d) high metabolic rate e) reptilian-like scales on legs
b) ectothermic
Bacterial flagella a) are homologous with eukaryotic flagella b) exhibit a rotary motion c) consist of a basal body and nine pairs of microtubules d) are important in transduction e) are characteristic of Gram-positive bacteria
b) exhibit a rotary motion
Which of the following is characteristic of insects? a) biramous appendages b) mandibles c) chelicerae d) eight legs e) two pairs of antennae
b) mandibles
Which of the following characteristics is associated with phylum Mollusca? a) mandibles b) mantle c) pedipalps d) chelipeds e) setae
b) mantle
This living dicot may be the nearest living relative to the ancestor of all flowering plants a) Amborella b) Archaeopteris c) Gnetum d) water lily e) Archaenthus
a) Amborella
The familiar portion of a mushroom is actually a large fruiting body called a (an) a) ascocarp b) basidium c) basidiocarp d) gametangium e) ascus
c) basidiocarp
Which of the following is not a nematode? a) hookworm b) trichina worm c) Ascaris d) leech e) pinworm
d) leech
The genome of a virus consists of a) DNA b) RNA c) prions d) DNA and RNA e) DNA or RNA
e) DNA or RNA
Pathogens a) agents that cause disease b) include most bacteria c) include most myxobacteria d) include many autotrophs e) are cyanobacteria that cause disease
a) agents that cause disease
In lysogenic conversion a) bacteria cells may exhibit new properties b) the host cell dies c) prions sometimes converts to viroids d) reverse transcriptase transcribes DNA into RNA e) prion proteins convert to infective agents
a) bacteria cells may exhibit new properties
Which of the following is not true of the duck-billed platypus? a) classified as a marsupial b) lays eggs c) embryo has a notochord d) embryo has pharyngeal slits e) is a predator
a) classified as a marsupial
Which of the following is not characteristic of nemerteans (proboscis worms)? a) large coelom b) tube-within-a-tube body plan c) complete digestive tube d) muscular tube for capturing food e) circulatory system
a) large coelom
Which of the following is/are found in tunicates? a) notochord b) tube feet c) anal gill slits d) two pairs of appendages e) vertebral column
a) notochord
Which of the following was an early jawed fish? a) placoderm b) crinoid c) therapsid d) labryinthodont e) ostracoderm
a) placoderm
The transfer of pollen grains from th male to the female reproductive structure is known as a) pollination b) fertilization c) embryo sac development d) seed development e) fruit development
a) pollination
Ferns are a) seedless, vascular plants b) vascular plants with seds c) seedless, nonvascular plants d) nonvascular plants with seeds e) seedless plants with a dominant gametophyte generation
a) seedless, vascular plants
Endospores a) are formed by some viruses b) are extremely durable cells c) are comparable to reproductive spores of fungi and plants d) cause fever and other symptoms in the host e) are extremely vulnerable to infection by phages
b) are extremely durable cells
A simple pistil consists of a single a) calyx b) carpel c) ovule d) filament e) petal
b) carpel
Paramecium and other ciliates often display a sexual phenomenon called a) oogamy b) conjugation c) anisogamy d) red tide e) alternation of generation
b) conjugation
Photosynthetic protists with shells composed of two halves that fit together like a petri dish are a) golden algae b) diatoms c) euglenoids d) brown algae e) foraminiferans
b) diatoms
Corals a) are coelomates b) form symbiotic relationship with certain algae c) lack a polyp stage d) are remarkably resistant to environmental stressors e) have bilateral symmetry
b) form symbiotic relationship with certain algae
Chlorophyll a, chlorophyll b, and carotenoids are found in a) green algae, red algae, and land plants b) green algae, euglenoids, and land plants c) brown algae, green algae, and golden algae d) brown algae, diatoms, and golden algae e) green algae, euglenoids, and diatoms
b) green algae, euglenoids, and land plants
Conifers, cycads, gingko, and gnetophytes are collectively called a) fern allies b) gymnosperms c) angiosperms d) dicots e) seedless vascular plants
b) gymnosperms
Torsion in mollusks a) is characteristic of bivalves b) is a twisting of the visceral mass c) involves coiling of the molluscan shell d) begins in the adult stage e) depends on action of parapodia
b) is a twisting of the visceral mass
Which of the following belongs to subphylum Vertebrata? a) lophophorate b) lamprey c) lancelet d) tunicate e) crinoid
b) lamprey
A strengthening compound found in cell walls of vascular plants is a) xanthophyll b) lignin c) cutin d) cellulose e) carotenoid
b) lignin
Viruses that kill host cells are a) lysogenic b) lytic c) viroids d) prophages e) temperate
b) lytic
Liverworts and hornworts share life cycles similarities with a) ferns b) mosses c) horsetails d) club mosses e) whisk ferns
b) mosses
Which of the following is not characteristic of arthropods? a) exoskeleton b) trochophore larva c) paired, jointed appendages d) chitin e) segmentation
b) trochophore larva
Which of the following is associated with the evolution of the coelom? a) radial symmetry b) tube-within-a-tube body plan c) incomplete metamorphosis d) bilateral symmetry e) development of ganglia
b) tube-within-a-tube body plan
Rudimentary cephalization, protonephridia, and auricles characterize some members of phylum a) Arthropoda b) Cnidaria c) Platyhelminthes d) Mollusca e) Crustacea
c) Platyhelminthes
Tapeworms are classified in phylum a) Porifera b) Cnidaria c) Platyhelminthes d) Ctenophora e) Coelomata
c) Platyhelminthes
The vertebral column a) is characteristic of all chordates b) forms the skeletal axis of the chordate body c) may consist of cartilaginous or bony segments d) is well developed in lancelets e) three of the preceding answers are correct
c) may consist of cartilaginous or bony segments
Which of the following belongs to Ecdysozoa? a) mollusks b) annelids c) nematodes d) nemerteans e) lophophorates
c) nematodes
The hydrostatic skeleton a) results in torsion b) permits contracting muscles to recover quickly c) permits a greater range of movement than possible in acoelomate animals d) is a unique characteristic of annelids e) permits ecdysis
c) permits a greater range of movement than possible in acoelomate animals
The pistil has three sections: a) stigma, style, and anther b) anther, filament, and ovule c) stigma, style, and ovary d) ovary, ovule, and sepal e) corolla, stamen, and sepal
c) stigma, style, and ovary
The ascomycete life cycle typically includes a) mainly diploid thalli b) the formation of a thick zygosporangium c) the production of eight haploid ascopores within an ascus d) intertwined hyphae to form a basidiocarp e) the production of ascospores, zoospores, and conidia at different stages
c) the production of eight haploid ascopores within an ascus
Which of the following is true of mammals? a) all have placentas b) evolved from saurichian dinosaurs c) three middle-ear bones d) most are ovoviviparous e) evolved during the Devonian period
c) three middle-ear bones
Which of the following characteristics is associated with amphibians? a) mantle b) placoid scales c) three-chambered heart d) swim bladder e) amnion
c) three-chambered heart
Amniotes a) include amphibians, reptiles, birds and mammals b) are especially well adapted for fresh water c) typically have physiological mechanisms fro conserving water d) typically excrete ammonia e) gave rise to the amphibians
c) typically have physiological mechanisms fro conserving water
Trocophore larvae are characteristic of a) Arthropoda b) Cnidaria c) Platyhelminthes d) Mollusca e) Crustacea
d) Mollusca
Reptiles a) have dry, scaly skin b) are amniotes c) gave rise to the birds and mammals d) answers a, b, and c are correct e) answers a and c are correct
d) answers a, b, and c are correct
Which of the following is not a deuterostome? a) echinoderms b) chordate c) hemichordate d) arthropod e) hagfish
d) arthropod
The correct sequence in insect complete metamorphosis is a) egg, immature form, adult b) egg, trochophore, larva, veliger larva, adult c) egg, pupa, larva, adult d) egg, larva, pupa, adult e) adult, larva, egg, pupa
d) egg, larva, pupa, adult
This class of flowering plants includes the palms, grasses. and orchids a) dicots b) gnetophytes c) cycads d) monocots e) conifers
d) monocots
Peptidoglycan is a chemical compound found in the cell walls of a) most viroids b) most Archae c) all prokaryotes d) most Eubacteria e) most Eukarya
d) most Eubacteria
The immature male gametophyte of pine are called a) ovules b) stamens c) seed cones d) pollen grains e) polar nuclei
d) pollen grains
Which of the following is not a placental mammal? a) shrew b) human c) dolphin d) spiny anteater e) bat
d) spiny anteater
Trilobites a) were early mollusks b) are members of phylum Onychophora c) are characterized by parapodia and setae d) were early arthropod e) are an evolutionary link between annelids and arthropods
d) were early arthropod
Which of the following is not true? a) feathers evolved in dinosaurs b) birds are endothermic c) birds excrete uric acid d) birds have amniotic eggs e) Archaeopteryx was the ancestor of feathered dinosaurs
e) Archaeopteryx was the ancestor of feathered dinosaurs
Spiders are chracterized by a) mandibles and maxilae b) six pairs of legs on the abdomen c) one pair of antennae d) biramous appendages e) chelicerae and pedipalps
e) chelicerae and pedipalps
Which of the following belong to phylum Mollusca? a) gastropods and crustaceans b) oligochaetes and polychaetes c) chelicerates and bryozoans d) crustaceans and nemerteans e) gastropods and cephalopods
e) gastropods and cephalopods
Which of the following characteristics is not associated with sea stars? a) tube feet b) water vascular system c) central disk with five or more arms d) spiny skeleton e) notochord
e) notochord
Which of the following is not true of the lophophorates? a) this group includes the bryozoa b) some have shells and look somewhat like mollusks c) characterized by a ciliated ring of tentacles at anterior end d) mainly marine animals e) some of its members are articulated, tracheated hexapods
e) some of its members are articulated, tracheated hexapods
Collar cells (choanocytes) are characteristic of phylum a) Porifera b) Cnidaria c) Coelomata d) Lophotrochozoa e) Ecdysozoa
a) Porifera
Most fungi produce cell walls containing the polymer _____. a) chitin b) penicillin c) cellulose d) peptidoglycan e) lysergic acid
a) chitin
Which group of bacteria contains the Gram-positive, anaerobic bacterium that causes botulism? a) clostridia b) actinomycetes c) enterobacteria d) spriochetes e) streptococci
a) clostridia
The waxy layer that covers aerial parts of plants is the a) cuticle b) archegonium c) protonema d) stoma e) thallus
a) cuticle
Cephalization a) evolved along with bilateral symmetry b) is the development of a digestive system c) is characteristic of cnidarians d) involves a concentration of excretory organs e) first evolved in deuterostomes
a) evolved along with bilateral symmetry
Whisk ferns, horestails, and club mosses share life cycle similarities with a) ferns b) mosses c) hornworts d) liverworts e) b, c and d
a) ferns
The majority of heterotrophic bacteria are a) free-living saprotrophs b) photoautotrophs c) chemoautotrophs d) facultative anaerobes e) obligate anaerobes
a) free-living saprotrophs
The green, gametangium bearing moss plant a) is the gametophyte generation b) is the sporophyte generation c) is called a protonema d) contains cells with single large chloroplasts e) both b and c
a) is the gametophyte generation
After fertilization, the ______ develops into a fruit and the ______ develops into a seed. a) ovary, ovule b) polar nuclei, ovule c) ovary; endosperm d) ovule; ovary e) ovule; polar nuclei
a) ovary, ovule
The capsid of a virus consists of a) protein b) nucleic acid c) helical proteins d) a simple carbohydrate e) RNA and lipid
a) protein
Which statement is not true of the basidiomycetes? a) they have a diploid thallus that produce zoospores b) their sexual spores are called basidiospores c) they produce a secondary mycelium with n + n hyphae d) mushrooms and bracket fungi are examples of this group e) this group includes both edible and poisonous species
a) they have a diploid thallus that produce zoospores
Which statement is not true of the zygomycetes? a) they produce motile cells with single, posterior flagella b) their sexual spores are called zygospores c) they have both sexual and asexual reproduction d) the black bread mold is a representative of this group e) they have coenocytic hyphae
a) they produce motile cells with single, posterior flagella
In conjugation, a) two bacterial cells of different mating types come together, and genetic material is transferred from one to another b) a bacterial cell develops a bulge that enlarges and eventually separates from the mother cell c) fragments of DNA released by a broken cell are taken in by another bacterial cell d) a phage carries bacterial genes from one bacterial cell into another e) walls develop in the cell, which then divides into six new cells
a) two bacterial cells of different mating types come together, and genetic material is transferred from one to another
Retroviruses a) are DNA viruses b) are RNA viruses c) use reverse transcriptase to transcribe DNA into RNA d) use prion protein to transcribe RNA e) are DNA viruses that cause AIDS
b) are RNA viruses
Bacteria that are autotrophs a) do not require atmospheric oxygen for cellular respiration b) manufacture their own organic molecules from simple raw materials c) must obtain organic compounds from other organisms d) get their nourishment from dead organisms e) produce endospores when oxygen levels are too low for active growth
b) manufacture their own organic molecules from simple raw materials
Mutualistic relationships between fungi and the roots of plants are called a) lichen b) mycorrhizae c) deuteromycete d) haustoria e) conidiophores
b) mycorrhizae
Which statement is not true of the ascomycetes? a) their sexual spores are produced in asci b) their sexual spores are produced in basidia c) some species in this group are yeasts d) their asexual spores are called conidia e) some species cause serious plant diseases
b) their sexual spores are produced in basidia
Which of the following is not a characteristic of plants? a) cuticle b) unicellular gametangium c) stomata d) multicellular embryo e) alternation of generation
b) unicellular gametangium
The evolution of animals a) followed an orderly progressive form simple to complex b) will be better understood as biologists continue to collect molecular and other types of data c) has been determined by studying classification d) began with the placozoans e) began with their common ancestor, a cnidarian
b) will be better understood as biologists continue to collect molecular and other types of data
Which of the following fungi does not have a mycelium? a) black b) yeast c) decomposer cup fungi d) cultivated mushroom e) penicillin
b) yeast
Which of the following statements about ferns is not true? a) ferns have motile sperm cell that swim through water to the egg-containing archegonium b) Ferns are vascular plants c) Ferns are the most economically important group of bryophytes d) the fern sporophyte consists of a rhizome. roots and fronds e) the diversity of ferns is greatest in the tropics
c) Ferns are the most economically important group of bryophytes
Which of the following scientists proposed a set of guidelines to demonstrate that a specific pathogen causes specific diseases? a) Leeuwenhoek b) Pasteur c) Koch d) Prusiner e) Woese
c) Koch
Stomata a) help prevent dessication of plant tissue b) transport water and minerals through plant tissue c) allow gas exchange for photosynthesis d) strengthen cell walls e) produce male gametes
c) allow gas exchange for photosynthesis
During cleavage, an animal a) undergoes metamorphosis b) becomes a larva c) undergoes a series of mitotic divisions and becomes a blastula d) becomes diploid e) reproduces sexually
c) undergoes a series of mitotic divisions and becomes a blastula
Prions a) consist of a short strand of RNA with no protein coat b) are deadly viruses that have caused several hundred deaths in Uganda and other parts of Africa c) appear to consist only of protein; no nucleic acid component has been found d) are responsible for causing hepatitis C e) are not transmissible from human to human
c) appear to consist only of protein; no nucleic acid component has been found
The correct sequence in viral reproduction is a) attachment, penetration, assembly, replication, release b) penetration, absorption, assembly, replication, release c) attachment, penetration, replication, assembly, release d) release, assembly, penetration, replication, attachment e) attachment, penetration, replication, release, assembly
c) attachment, penetration, replication, assembly, release
Mycotoxins are a) released by most lichens b) typically cause mild allergic reactions c) can harm the liver d) reproduce the effects of sick building syndrome e) are produced mainly by chytrids
c) can harm the liver
Which of the following is an example of a deuterostome? a) a lophotrochozoan b) coral c) chordate d) planarian e) a pseudocoelomate
c) chordate
Cnidocytes are a) characteristic of sponges b) found among cells lining the gastrovascular cavity c) contain stinging organelles d) are lined with mesoderm e) have two main shapes
c) contain stinging organelles
The female gametophyte in flowering plants is also called the a) polar nuclei b) anther c) embryo sac d) endosperm e) sporophyll
c) embryo sac
These plants have hollow, jointed stems that are impregnated with silica a) mosses b) club mosses c) horsetails d) whisk ferns e) hornworts
c) horsetails
A _____ is a symbiotic association between a phototroph and a fungus a) mycorrhizae b) deuteromycete c) lichen d) haustorium e) saprotroph
c) lichen
A (an) _____ is a leaf that arose from a brach system a) antheridium b) microphyll c) megaphyll d) sorus e) microspore
c) megaphyll
Most conifers are ____, having male and female reproductive parts at different location on the same plan a) incomplete b) imperfect c) monoecious d) dioecious e) perfect
c) monoecious
Foraminiferans a) are endosymbionts in many marine invertebrates b) were responsible for the Irish potato famine in the 19th century c) secrete many-chambered tests with pores through which cytoplasmic extension project d) have numerous trichocysts that may aid in trapping and holding prey e) contain phycocyanin and phycoerythrin, pigments found in no other protist group
c) secrete many-chambered tests with pores through which cytoplasmic extension project
Which of the following is not true of the protists? a) they are multicellular, unicellular, coenocytic, or simple multicellular organisms b) their cilia and flagella have a 9 + 2 arrangement of microtubules c) they are prokaryotic, like the eubacteria and archaebacteria d) some are free-living, and some are endoymbionts e) most are aquatic and live in the ocean or in freshwater ponds
c) they are prokaryotic, like the eubacteria and archaebacteria
Which statement is not true of the deuteromycetes? a) many are ascomycetes that lost the ability to repoduce by forming ascospores b) they are also known as imperfect fungi c) they have both sexual and asexual reproduction d) their sexual spores are called conidia e) some are important plant pathogens
c) they have both sexual and asexual reproduction
Water mold reproduce asexually by forming _____ and sexually by forming ______. a) oospores; holdfasts b) zoospores, zooanthellae c) zoospores; oospores d) holdfasts; isogametes e) oospores; isogametes
c) zoospores; oospores
ore than ______ specoes pf flpweromg [;amts jave neem odemtofoed a) 235 b) 2350 c) 23,500 d) 235,000 e) 2,350,000
d) 235,000
With the exception of chytridiomycetes, fungi are generally disseminated by a) water currents b) fragmentation of hyphae c) soredia d) airborne spores e) flagellate zoospores
d) airborne spores
Parasitic alveolates that form spores at some stage in their life belong to which group? a) actinopods b) ciliates c) coccolithophorids d) apicomplexans e) dinoflagellates
d) apicomplexans
The female gametangium, or ______, produce an egg; the male gametangium, or _______, produce sperm cells. a) antheridium; archegonium b) archegonium; megaphyll c) megasporangium; antheridium d) archegonium; antheridium e) megasporangium; megaphyll
d) archegonium; antheridium
Ctenophores a) tend to be sessile b) have a digestive system with only one opening c) exhibit bilateral symmetry d) are characterized by adhesive glue cells on their tentacles e) are free-swimming polyps
d) are characterized by adhesive glue cells on their tentacles
Which of the following do not belong to domain Archae? a) bacteria that produce methane from carbon dioxide and hydrogen b) thermophiles c) halophiles d) bacteriophages e) prokaryotes with cells walls that lack peptidoglycan
d) bacteriophages
The bryophytes a) include mosses, liverworts, and hornworts b) include whisk ferns, horsetails, and club mosses c) are small plants that lack a vascular system d) both a and c e) both b and c
d) both a and c
Plants probably descended from a group of green algae called a) rhyniophytes b) Calamites c) epiphytes d) charophytes e) club mosses
d) charophytes
Radial symmetry is characteristic of a) protostomes b) ecoelomates c) deuterostomes d) cnidarians e) Porifera
d) cnidarians
lactic acid bacteria a) have Gram-negative cell walls b) fix nitrogen under anaerobic conditions c) were formerly known as blue-green algae d) contribute to the unique taste of yogurt, pickles, and sauerkraut e) secrete slime on which they glide
d) contribute to the unique taste of yogurt, pickles, and sauerkraut
The Parazoa a) are coelomates b) include Cnidarians c) include all animals with radial symmetry d) do not form true tissues e) have a pseudocoelom
d) do not form true tissues
A flower that lacks stamens is both ______ and ________. a) complete; imperfect b) incomplete; perfect c) complete; perfect d) incomplete; imperfect
d) incomplete; imperfect
Amanita virosa a) is the mushroom commonly cultivated for food b) is the yeast that ferments wine and beer c) produces the unique flavor of many cheeses d) is a highly toxic mushroom e) has been ingested for its hallucinogenic properties
d) is a highly toxic mushroom
Malaria a) is transmitted by the bite of a female tsetse fly b) is caused by a parasitic zooflagellate, Giardia intestinalis c) is a serious form of amoebic dysentery caused by Entameoba histolytica d) is caused by an apicomplexan that spends part of its life cycle in the Anopheles mosquito and part in humans e) is transmitted when people drink water tainted by a red tide
d) is caused by an apicomplexan that spends part of its life cycle in the Anopheles mosquito and part in humans
The multicellular bodies of _____ are differentiated into blade, stipes, holdfasts, and gas-filled floats a) golden algae b) diatoms c) euglenoids d) kelps e) green algae
d) kelps
Which of the following is not a defining characteristics of animals? a) heterotrophs b) multicellular c) eukaryotic d) presence of a coelom e) forms a zygote that undergoes cleavage
d) presence of a coelom
Which statement is not true of the chytridiomycetes? a) they are simple aquatic fungi b) they produce motile cells with single, posterior flagella c) they have both sexual and asexual reproduction d) the black bread mold is a representative if this group e) they are the most primitive group of fungi
d) the black bread mold is a representative if this group
In plant life cylces a) the first products of meiosis are gametes b) spores are pat of the diploid sporophyte generation c) the embryo gives rise to a zygote d) the first stage in the diploid sporophyte generation is the zygote e) the first stage in the haploid gametophyte generation is the prothallus
d) the first stage in the diploid sporophyte generation is the zygote
These plants have vascularized stems but lack true roots and leaves a) mosses b) club mosses c) horsetails d) whisk ferns e) hornworts
d) whisk ferns
Unicellular protists that are free-living or parasitic, move by means of flagella, and do not photosynthesize are called a) euglenoids b) dinoflagellates c) myxameobas d) zooflagellates e) apicomplexans
d) zooflagellates
Seed plants lack which of the following structures? a) ovules surrounded by integuments b) microspores and megaspores c) vascular tissue d) a large, nutritionally independent sporophyte e) a large, nutritionally independent gametophyte
e) a large, nutritionally independent gametophyte
Which of the following is not an adaptation to terrestrial living? a) internal fertilization b) shell surrounding egg c) adaptations for maintaining body temperature d) surface for gas exchange deep in body e) ability to maintain location
e) ability to maintain location
The marine hydrozoan Obelia a) is seen mainly in the medusa form b) lack cnidocytes c) has reproductive polyps that produce eggs and sperm d) is one of the largest jellyfish known e) alternates sexual and asexual stages during its life cycle
e) alternates sexual and asexual stages during its life cycle
Microphylls a) probably evolved from stem branches that gradually filled in with additional tissues b) are usually small and have a single vascular strand c) are characteristic of club mosses d) both a and c e) both b and c
e) both b and c
Motile sperm cells are found as vestiges in these two gymnosperm groups a) monocots; dicots b) gnetophytes; conifers c) gnetophytes; flowering plants d) cycads; conifers e) cycads; gingko
e) cycads; gingko
The condition described as n + n is said to be a) monokaryotic b) diploid c) a primary mycelium d) coenocytic e) dikaryotic
e) dikaryotic
Alveolates characterized by two flagella, one wrapped around the center of the cell like a belt and the other projecting behind the cell. are a) actinopods b) ciliates c) coccolithophorids d) apicomplexans e) dinoflagellates
e) dinoflagellates
Cellular slime molds a) include Physarum and Phytophthora b) are more closely related to prokaryotes than are any other protists c) are responsible for late blight of potatoes, which led to starvation in Ireland in the 1840s d) have isogamous sexual reproduction e) form a pseudoplasmodium when cells aggregate in response to cyclic AMP
e) form a pseudoplasmodium when cells aggregate in response to cyclic AMP
Spike moss (Selaginella) is a a) homosporous fern b) homosporous horsetail c) heterosporous fern d) heterosporous horsetail e) hetereosporous club moss
e) hetereosporous club moss
Which characteristic is true of all fungi? a) saprotrophic b) parasitic c) nonflagellate d) pathogenic e) heterotrophic
e) heterotrophic
Which of the following describes how a fungus infects a plant? a) infiltrates leaves with lichens b) forms relationships by attaching mycorrhizae to stems c) secretes powerful digestive juices onto the leaves d) uses haustoria to penetrate stem tissue e) hyphae enters leaves through a stoma
e) hyphae enters leaves through a stoma
A true coelom is completely linked with a) flagella b) ectoderm c) a contractile layer d) endoderm e) mesoderm
e) mesoderm
Bacteria that thrive in puncture wounds are likely to be a) saprotrophs b) photoautotrophs c) chemoautotrophs d) endospores e) obligate anaerobes
e) obligate anaerobes
Which protists have photosynthetic pigments similar to those of the cyanobacteria a) golden algae b) diatoms c) euglenoids d) brown algae e) red algae
e) red algae
Seedless vascular plants have _____ to conduct water and dissolved minerals and ______ to conduct dissolved sugar a) cuticle; xylem b) phloem; stoma c) phloem; xylem d) stoma; cuticle e) xylem; phloem
e) xylem; phloem
