Test 3

Question 0

In animals that display indeterminate development…

Answer 0

Early embryonic cells, if separated from the embryo, can develop into complete organisms

Question 1

Protostomes develop through ___.

Answer 1

Spiral cleavage

Question 2

A biologist discovered a new animal. Upon studying embryonic development, she observed spiral cleavage with the blastopore developing into a mouth. The animal was categorized as a ___.

Answer 2

Protostome

Question 3

In which phylum of marine animals did symmetrical body plans first evolve?

Answer 3

Cnidaria

Question 4

All of the following features are associated with bilateral symmetry in animals except…

Answer 4

Being sessile

Question 5

Circulatory systems solved the problem of ___ in animals with coeloms.

Answer 5

The barrier to diffusion created by tissue surrounding the gut

Question 6

Solid worms that lack a body cavity are known as ___.

Answer 6

Acoelomates

Question 7

Which of the following is not true about animals?

Answer 7

They were some of the first organisms on the earth.

Question 8

Which is the following terms is mismatched with its meaning or characteristics?

Answer 8

Diplomatic - ectoderm and mesoderm

Question 9

Diplomatic

Answer 9

Ectoderm and endoderm

Question 10

Triploblastic

Answer 10

Ectoderm, mesoderm, and endoderm

Question 11

Parazoa

Answer 11

Lack symmetry, no tissues

Question 12

Eumetazoa

Answer 12

Definite symmetry, tissues organized

Question 13

Chordate

Answer 13

Animal with notochord

Question 14

A zoologist studies an animal that is a deuterostome. Which of the choices makes the sentence that follows incorrect?

You know that deuterostomes…

Answer 14

Are animals in which the blastopore develops into the mouth

Question 15

Segmentation is the subdivision of the body into segments or metameres. True segmentation is found in which of the following phyla selections?

Answer 15

Arthropoda, Annelida, and Chordata

Question 16

Parazoa have no true ___.

Answer 16

Tissues

Question 17

Which of the following terms does not apply to the phylum Porifera?

Answer 17

Diploblastic

Question 18

Sponges are unique in possessing special flagellated cells whose beating drives water through the body cavity. These specialized cells are known as ___.

Answer 18

Choanocytes

Question 19

Sponges exhibit all of the following general characteristics except

Answer 19

Three cell layers

Question 20

All of the following are true about Cnidarians except

Answer 20

Their bodies are made up of distinct organs

Question 21

Phylum Platyhelminthes is characterized by all of the following except

Answer 21

All are free-living

Question 22

Flukes are parasitic worms whose josh during the larval stage are usually ___.

Answer 22

Snails

Question 23

The stage in the flukes life history in which it escapes from the snail and is ready to enter the intermediate or final host is the ___.

Answer 23

Cercariae

Question 24

Trichinella nematodes reach muscle tissue, forming resistant cysts, after

Answer 24

Entering the lymph channels following penetration of the intestine

Question 25

Which one of the following taxa is not part of the grouping of clades called lophotrochozoa?

Answer 25

Arthropoda

Question 26

Which of the following is not a type of Cnidarian?

Answer 26

Comb jelly

Question 27

The phylum that includes snails, clams, oysters, and octopuses is ___.

Answer 27

Mollusca

Question 28

In mollusks, the folds of tissue that arise from the dorsal body wall and enclose a cavity surrounding the visceral mass are called the ___.

Answer 28

Mantle

Question 29

The organ that is responsible for secreting cocoons in the Oligochaetes is known as the ___.

Answer 29

Clitellum

Question 30

Examples of mollusks that live on land are the ___ and ___.

Answer 30

Snails and slugs

Question 31

The cephalopod mollusks have ___.

Answer 31

Tentacles

Question 32

The sexual reproduction of earthworms characteristically is

Answer 32

Hermaphroditic but cross-fertilizing

Question 33

A biologist has been studying a mollusk that does not have a shell. It lives in the marine environment. Of the examples given, which one did the biologist study?

Answer 33

Octopus

Question 34

Select the mismatched pair of phylum Mollusca classes.

Answer 34

Bivalvia - snails

Question 35

A marine biologist visits your biology class and begins his talk entitled, "Life as a Trochophore." A friend seated next to you asks, "what is a trochophore?" You explain that a trochophore is...

Answer 35

A term used to describe a larval form of either the phylum Mollusca or Annelida

Question 36

Which class of Arthropods contains members with two pairs of antennae and legs on their abdomen and thorax?

Answer 36

Crustacea

Question 37

The most successful class of Arthropods is ___.

Answer 37

Insecta

Question 38

In Arthropods, locomotion is accomplished by muscles that work against...

Answer 38

The exoskeleton

Question 39

Oxygen diffuses to the tissues of terrestrial Arthropods through the ___ and ___.

Answer 39

Trachea and tracheoles

Question 40

Chelicerae function as ___ or ___.

Answer 40

Fangs or pinchers.

Question 41

These Echinoderms have soft, slug-like bodies with tough, leathery skin. They are the ___.

Answer 41

Sea cucumbers

Question 42

The only living Echinoderms that are fully sessile are ___.

Answer 42

Sea lilies

Question 43

Small, fishlike marine chordates, pointed at both ends with no distinguishable head, in which the notochord runs the entire length of the nerve cord, are called ___.

Answer 43

Lancelets

Question 44

One of the most critical adaptations of the reptiles in relation to their life on land is the evolution of the ...

Answer 44

Amniotic egg

Question 45

The chordates include all of the following except

Answer 45

Echinoderms

Question 46

Amphibians are thought to have evolved from what?

Answer 46

Lobe-finned fish

Question 47

Which of the following is not one of the membranes of the reptilian amniotic egg?

Answer 47

Ectoderm

Question 48

All of the following are features that contribute to the ability of reptiles to survive on dry land except

Answer 48

Endothermy

Question 49

The changes that were necessary to cope with the heavy energy demands of flight in birds include all of the following except

Answer 49

A three chambered heart

Question 50

Mammals are thought to have evolved from ___.

Answer 50

Therapsids

Question 51

Monotremes differ from the other mammals in their ...

Answer 51

Laying of shelled eggs

Question 52

The correct listing of vertebrate groups ranked by species richness

Answer 52

Fish -> birds -> reptiles -> amphibians -> mammals

Question 53

The key specialization a that occurred in the evolution of mammals include all of the following except ...

Answer 53

Reduction in brain size

Question 54

Modern-humans share the greatest similarities with which one of the hominids?

Answer 54

Cro-Magnons