Bio 2 week 27-32 chapters

In the process of double fertilization, one sperm fuses with the egg and the other sperm fuses with a spore.

False

Maxillae are used to bite and grind food.

False

Mosses have stems, roots, and leaves.

False

Which of the following is characteristic of flatworms?

They are acoelomate (have no body cavity).

The sac fungi Ascomycetes are characterized by sexual reproductive structures called:

asci

Ascomycetes reproduce sexually by forming

ascospores

The club fungi typically reproduce by producing:

basidiocarps

Lungs first evolved in which group?

bony fishes

Sea stars are primarily:

carnivores

An elongate uniramid with many legs as well as poison claws is known as a(n):

centipede

You find a protist that has a single flagellum surrounded by a collar of microvilli. You correctly conclude that this organism is a(n):

choanoflagellate

Hermaphroditic earthworms reproduce sexually by connecting their bodies by their ____. This allows transfer of ____ from one worm to the other.

clitellum; sperm

Microphylls is a structure that can only be found in:

club mosses

A nauplius larva is characteristic of

crustaceans

Alternation of generations in plants refers to the alternation of

diploid and haploid stages.

In flowering plants, the ____ generation is dominant.

diploid sporophyte

Which of the following animals helps to maintain fertile soil?

earthworms

What is the mode of nutrition for clams and oysters?

filter feeders

One ancestral characteristic remaining in representatives of the Chytridiomycota, and not in any other phyla of fungi, is:

flagellated cells

As a seed develops from an ovule, the ovule wall enlarges and develop into a:

fruit

What are the multicellular sex organs in plants?

gametangia

In which group did the amniotic egg first evolve?

reptiles

Hellbenders are members of the order

Caudata

Which of the following is a characteristic shared between green algae and plants?

Chlorophylls a and b in plastids

A gemma is a sexual reproductive structure produced by certain liverworts.

False

An exoskeleton is a characteristic of an echinoderm

False

Biologists agree that ancestors of ray-finned fishes gave rise to tetrapods.

False

Club mosses belong to the phylum Bryophyta

False

The lowermost and outermost whorl on a floral shoot consists of petals

False

The pollen grains of pine each consists of three cells.

False

Echinoderms are characterized by bilateral symmetry in adults, a water vascular system, tube feet, and spiny skin.

False - radial symmetry in adults

Which of the following is a vascular plant?

Fern

The sori of most ferns are found on which part of the plant?

Fronds

Which of the following phyla is unusual, as it is composed of a single species?

Ginkgophyta

Which is a basic difference between gymnosperms and flowering plants?

Gymnosperms produce seeds borne naked, while flowering plants produce seeds enclosed within a fruit.

Which is a characteristic of tapeworms?

Tapeworms have bodies that consist of hundreds of reproductive segments.

After fertilization in angiosperms, what does the ovule develop into?

Seed

Why are seeds reproductively superior to spores?

Seeds contain a young plant and also are protected by a seed coat.

Yeasts reproduce asexually by:

budding

After embryonic development, members of the phylum Rotifera are incapable of:

cell division

The cell walls of fungi are composed of:

chitin

Sponges are believed to have arisen from the choanoflagellates because they possess:

collar cells

Which arthropod has chelicerae, pedipalps, and silk glands?

spiders

Which of the mollusks have a closed circulatory system?

squids

What specialized structure do crustaceans use to sense gravity?

statocysts

The female gametophyte generation in angiosperms is found in the:

stigma and style of the pistil

What is the mode of nutrition for most Poriferans?

suspension feeders

Malpighian tubules are used for excretion.

True

The phylum name Arthropoda refers to:

jointed appendages

Most fungal spores are ____ reproductive cells that are produced ____.

nonmotile; sexually or asexually

The anterior end of a tapeworm is known as the:

scolex

Within the phylum Cnidaria, corals are most closely related to which organism?

sea anemones

Which is critical to polychaete and oligochaete locomotion?

setae

Echinoderms are unique because:

their larvae are bilaterally symmetrical while the adult is pentaradially symmetrical

The ____ are very common arthropod Paleozoic fossils, and are extinct today.

trilobites

Refer to the accompanying figure. Which label denotes the nerve cord?

5

In the accompanying figure, which label designates the structures largely responsible for attracting potential pollinators?

8

As bilateral symmetry evolved, natural selection led to which of the following?

Abiogenesis

The coelacanth is found in the class:

Actinistia

Which of the following characteristics about animals is FALSE?

Animals cannot respond to stimuli.

Which statement about mycorrhizae is FALSE?

Arbuscular mycorrhizae are extracellular.

Which of the following statements about arthropods is FALSE?

Arthropods have an incomplete digestive tract.

The most prevalent groups of fungi are:

Ascomycota and Basidiomycota

Which statement about bilateral symmetry is FALSE?

Bilateral symmetry evolved in cnidarians.

Members of the phylum ____ are the simplest organisms with a separate mouth and anus.

Ctenophora

Movable spines are found on ____ of the phylum Echinodermata.

Echinoidea

Which class of animals has the largest number of species?

Insecta

Which statement best describes a lophophore?

It is a ciliated ring of tentacles surrounding the mouth

Which statement best describes a lophophore?

It is a ciliated ring of tentacles surrounding the mouth.

Which is a differentiating characteristic of land plants from green algae?

Land plants have a waxy cuticle.

What do the large female cones of a pine tree contain?

Megasporangia

____ are small leaves with a single vascular strand.

Microphylls

Which phylum does the life cycle in the accompanying figure represent?

Phylum Ascomycota

Which was the primary challenge animals faced in adapting to life on land?

The desiccating effect of the atmosphere

How do leeches differ from other annelids?

They do not have setae or parapodia.

Why are mosses and liverworts limited in size?

They lack vascular tissues.

An example of an animal that is a metazoan is a sponge.

True

Animals share a common origin with choanoflagellates.

True

Members of phylum Arthropoda have paired, jointed appendages.

True

Members of the Ecdysozoa clade are characterized by having a cuticle.

True

One member of subphylum Chelicerata is a spider.

True

How is the pollen of pine trees primarily disseminated? Birds

Wind

I am characterized by having a test and axopods. Who am I?

actinopods

The most diverse, successful, and familiar group of plants today are the:

angiosperms

The head end of an animal is known as its:

anterior end

What is the male sexual structure that produces sperm in plants?

antheridium

As adults, ____ are the only sessile crustaceans whose external anatomy is completely different than its fellow crustaceans.

barnacles

Which is an example of a member of phylum Zygomycota?

black bread mold

A nauplius larva is characteristic of:

crustaceans

Biramous appendages in arthropods are only present in which organism?

crustaceans

Which arthropods have mandibles, gills, excretory glands, and statocysts?

crustaceans

Diploblastic animals, such as cnidarians and ____, have only two germ layers, ectoderm and ____.

ctenophores; endoderm

The ____ of an earthworm allows them to resist desiccation in terrestrial environments.

cuticle

Like the cnidarians, flatworms depend on ____ for achieving circulation and gas exchange.

diffusion

Xylem is a vascular tissue that conducts dissolved sugars.

false

Refer to the accompanying figure. What is the structure labeled as 9?

feeding polyp

Some liverworts reproduce asexually by forming tiny balls of tissue called:

gemmae

Members of the ____ are thought to have given rise to plants.

green algae

The ____ generation is dominant in mosses, as it can live independently.

haploid gametophyte

One characteristic of the class Holothuroidea is that they:

have movable spines that are used to facilitate locomotion.

Black bread mold is ____, which means that it can't self-fertilize

heterothallic

Many seedless plants produce spores of one morphological type, which is referred to as:

homospory

The Portuguese man-of-war is a colony of hundreds to thousands of:

hydrozoans

A ____ is a filament that makes up the vegetative body of most fungi.

hypha

All echinoderms are found:

in marine habitats.

A flower that has sepals, petals, and stamens, but lacks carpels, is known as:

incomplete and imperfect.

Where does digestion in a sponge takes place?

individual cells

The body wall of cnidarians and ctenophores consist of:

inner and outer cell layers separated by a jelly-like mesoglea

Which of the following species has been used for centuries to draw blood from areas swollen by poisonous stings and bites?

leeches

Reduction in ____ growth is used as a sensitive indicator of air pollution.

lichen

Pseudopodia are used by Amoeba for ingesting food as well as for:

locomotion

Segmentation is important in annelids as an aid in:

locomotion

Most mollusks are:

marine

The ____ gives rise to muscles, bones, and the circulatory system

mesoderm

The veliger larval form is unique to:

molluscs

A plant with parallel veins and floral parts in threes or multiples of three would be classified as a:

monocot

Most conifers have separate male and female reproductive parts on the same tree. This condition is referred to as:

monoecious

Segmentation in arthropods differs from that of annelids because arthropod segments are:

more specialized

In most protostomes, the blastopore develops into the:

mouth

Most reptiles are ____ and their fertilization is ____.

oviparous; internal

The larvae of some cnidarians are known as ____ larvae.

planula

Which process marks the start of the dikaryotic stage (n + n) in the fungal reproductive cycle?

plasmogamy

One characteristic of class Bivalvia is that they:

possess two shells with a hinge

The gametophyte generation of ferns is the:

prothallus

Deuterostomes are characterized by ____ and ____ cleavage.

radial; indeterminate

Which structure do numerous mollusks use to scrape algae off rocks?

radula

Which of the following is an adaptation that enables cephalopods to escape from their predators?

rapidly changing colors

Angiosperms have ____ in their phloem.

sieve tube elements

Most arachnids have ____ pair(s) of jointed appendages.

six

The intermediate host for a blood fluke is a:

snail

Ctenophores capture food:

using adhesive glue cells that trap prey

The most unique feature of the echinoderms is their:

water vascular system.

Which is a unique adaptation in insects not found in any other arthropod?

wings

Which unicellular fungus is probably in most kitchens?

yeast