Question 1

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

Accepted Answer

A) are bilateral symmetrical. 
B) evolved from protostomes. 
C) are animals in which the blastopore develops into the mouth. 
D) are animals in which any cell can develop into a complete organism. 
E) are coelomates. 
A) are bilateral symmetrical. 
B) evolved from protostomes. 
C) are animals in which the blastopore develops into the mouth. 
D) are animals in which any cell can develop into a complete organism. 
E) are coelomates.

Question 2

In all deuterostomes,by contrast,the cells divide parallel to and at right angles to the polar axis.This pattern is called radial cleavage.

Accepted Answer

The answer of In all deuterostomes,by contrast,the cells divide parallel...

Question 3

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

Accepted Answer

A) Radiata 
B) Ctenophora 
C) Cnidaria 
D) Echinodermata 
E) Parazoa 
A) Radiata 
B) Ctenophora 
C) Cnidaria 
D) Echinodermata 
E) Parazoa

Question 4

Of the following combination of statements about protostomes and deuterostomes,which choice is correct?

Accepted Answer

A) Protostomes are animals in which the mouth develops from the blastopore.The anus or anal pore of protostomes develops from the second opening.Deuterostomes are animals in which the anus develops from the blastopore and the mouth develops secondarily later in their development. 
B) Protostomes are animals in which the anus develops from the blastopore.The mouth of protostomes develops from the second opening.Deuterostomes are animals in which the anus develops from the blastopore and the mouth develops secondarily later in their development. 
C) Protostomes are animals in which the mouth develops from the blastopore.The anus or anal pore of protostomes develops from the second opening.Deuterostomes are animals in which the mouth develops from the blastopore and the anus develops secondarily later in their development. 
D) Protostomes are animals in which the mouth or anus develops from the blastopore,depending on the species.Deuterostomes are animals in which the mouth and anus develops from the blastopore,depending on the species. 
A) Protostomes are animals in which the mouth develops from the blastopore.The anus or anal pore of protostomes develops from the second opening.Deuterostomes are animals in which the anus develops from the blastopore and the mouth develops secondarily later in their development. 
B) Protostomes are animals in which the anus develops from the blastopore.The mouth of protostomes develops from the second opening.Deuterostomes are animals in which the anus develops from the blastopore and the mouth develops secondarily later in their development. 
C) Protostomes are animals in which the mouth develops from the blastopore.The anus or anal pore of protostomes develops from the second opening.Deuterostomes are animals in which the mouth develops from the blastopore and the anus develops secondarily later in their development. 
D) Protostomes are animals in which the mouth or anus develops from the blastopore,depending on the species.Deuterostomes are animals in which the mouth and anus develops from the blastopore,depending on the species.

Question 5

Which one of the following terms does not apply to the phylum Nematoda?

Accepted Answer

A) asymmetry 
B) protostome 
C) coelomate 
D) triploblastic 
E) determinate cleavage 
A) asymmetry 
B) protostome 
C) coelomate 
D) triploblastic 
E) determinate cleavage

Question 6

The process in which a definite head and brain evolves is called ________.

Accepted Answer

The answer of The process in which a definite head...

Question 7

In animals that display indeterminate development

Accepted Answer

A) embryonic cells have a predetermined fate. 
B) bilateral symmetry cannot develop. 
C) early embryonic cells,if separated from the embryo,can develop into complete organisms. 
D) embryonic cells show spiral cleavage. 
E) the blastopore develops into the mouth. 
A) embryonic cells have a predetermined fate. 
B) bilateral symmetry cannot develop. 
C) early embryonic cells,if separated from the embryo,can develop into complete organisms. 
D) embryonic cells show spiral cleavage. 
E) the blastopore develops into the mouth.

Question 8

Molecular analysis suggests that the rapid diversification during the Cambrian explosion may have been due to evolution of the Hox genes.

Accepted Answer

A) definite shape and symmetry. 
B) tissues organized into organs and organ systems. 
C) distinct embryonic layers which differentiate into adult tissues. 
D) the Hox genes. 
E) having cells organized into tissue layers. 
A) definite shape and symmetry. 
B) tissues organized into organs and organ systems. 
C) distinct embryonic layers which differentiate into adult tissues. 
D) the Hox genes. 
E) having cells organized into tissue layers.

Question 9

Which one of the following statements about origins of animals is false?

Accepted Answer

A) Most taxonomists agree that the origin of the metazoans is polyphyletic. 
B) The multinucleate hypothesis states that metazoans arose from multinuclear protists. 
C) The colonial flagellate hypothesis states that metazoans arose from choanoflagellate-like protists. 
D) The polyphyletic origin hypothesis states that the sponges evolved independently from the eumetazoans. 
E) Molecular data shows that metazoans are more closely related to flagellates than to ciliates. 
A) Most taxonomists agree that the origin of the metazoans is polyphyletic. 
B) The multinucleate hypothesis states that metazoans arose from multinuclear protists. 
C) The colonial flagellate hypothesis states that metazoans arose from choanoflagellate-like protists. 
D) The polyphyletic origin hypothesis states that the sponges evolved independently from the eumetazoans. 
E) Molecular data shows that metazoans are more closely related to flagellates than to ciliates.

Question 10

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

Accepted Answer

A) diploblastic-ectoderm and mesoderm 
B) triploblastic-ectoderm,mesoderm,and endoderm 
C) Parazoa-lacks symmetry;no tissues 
D) Eumetazoa-definite symmetry;tissues organized 
E) Chordate-animal with notochord 
A) diploblastic-ectoderm and mesoderm 
B) triploblastic-ectoderm,mesoderm,and endoderm 
C) Parazoa-lacks symmetry;no tissues 
D) Eumetazoa-definite symmetry;tissues organized 
E) Chordate-animal with notochord

Question 11

A biologist discovered a new animal.Upon studying embryonic development,she observed radial cleavage with the blastopore developing into an anus.This animal was categorized as a

Accepted Answer

A) parazoan. 
B) radiata. 
C) deuterstome. 
D) protostome. 
E) pseudocoelomatE. 
A) parazoan. 
B) radiata. 
C) deuterstome. 
D) protostome. 
E) pseudocoelomatE.

Question 12

Which one of the following terms does not apply to the phylum Chordata?

Accepted Answer

A) Eumetazoa 
B) diploblastic 
C) bilateral symmetry 
D) deuterostome 
E) coelomate 
A) Eumetazoa 
B) diploblastic 
C) bilateral symmetry 
D) deuterostome 
E) coelomate

Question 13

Molecular data confirm that cnidarians branched off from the rest of animals before ____________ evolved.

Accepted Answer

A) echinoderms 
B) Porifera 
C) mollusks 
D) bilaterial symmetry 
E) arthropods 
A) echinoderms 
B) Porifera 
C) mollusks 
D) bilaterial symmetry 
E) arthropods

Question 14

Which one of the following features would indicate that an animal is not a protostome?

Accepted Answer

A) bilateral symmetry 
B) open or closed circulatory system 
C) blastopore opens into the archenteron 
D) three primary tissue layers 
E) body parts arranged around a central axis 
A) bilateral symmetry 
B) open or closed circulatory system 
C) blastopore opens into the archenteron 
D) three primary tissue layers 
E) body parts arranged around a central axis

Question 15

Animals are multicellular heterotrophs and obtain their food by ________.

Accepted Answer

The answer of Animals are multicellular heterotrophs and obtain their...

Question 16

Which one of the following terms applies to the phylum Platyhelminthes?

Accepted Answer

A) spiral cleavage 
B) protostome 
C) diploblastic 
D) acoelomate 
E) radial symmetry 
A) spiral cleavage 
B) protostome 
C) diploblastic 
D) acoelomate 
E) radial symmetry

Question 17

Which one of the following terms applies to the phylum Cnidaria?

Accepted Answer

A) radial symmetry 
B) pseudocoelomate 
C) Parazoa 
D) triploblastic 
E) protostome 
A) radial symmetry 
B) pseudocoelomate 
C) Parazoa 
D) triploblastic 
E) protostome

Question 18

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

Accepted Answer

A) the shorter length of digestive tracts 
B) the barrier to diffusion created by tissue surrounding the gut 
C) living in a terrestrial habitat 
D) complexity of movement 
E) decrease in oxygen levels 
A) the shorter length of digestive tracts 
B) the barrier to diffusion created by tissue surrounding the gut 
C) living in a terrestrial habitat 
D) complexity of movement 
E) decrease in oxygen levels

Question 19

Which of the following is not correct regarding the origin of parazoans and eumetazoans?

Accepted Answer

A) The common ancestor was a protist. 
B) The common ancestor was a hollow spherical colony of flagellated cells. 
C) Cells within sponges resemble choanoflagellate protists. 
D) Sponges evolved independently from eumetazoans. 
E) Metazoans represent a monophyletic group. 
A) The common ancestor was a protist. 
B) The common ancestor was a hollow spherical colony of flagellated cells. 
C) Cells within sponges resemble choanoflagellate protists. 
D) Sponges evolved independently from eumetazoans. 
E) Metazoans represent a monophyletic group.

Question 20

Select the following phylum that includes deuterostome animals that are exclusively marine and have radial symmetry as adults.

Accepted Answer

A) Porifera 
B) Rotifera 
C) Echinodermata 
D) Chordata 
E) Cnidaria 
A) Porifera 
B) Rotifera 
C) Echinodermata 
D) Chordata 
E) Cnidaria

Exam 32: Overview of Animal Diversity

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

In all deuterostomes,by contrast,the cells divide parallel to and at right angles to the polar axis.This pattern is called radial cleavage.

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

Of the following combination of statements about protostomes and deuterostomes,which choice is correct?

Which one of the following terms does not apply to the phylum Nematoda?

The process in which a definite head and brain evolves is called ________.

In animals that display indeterminate development

Molecular analysis suggests that the rapid diversification during the Cambrian explosion may have been due to evolution of the Hox genes.

Which one of the following statements about origins of animals is false?

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

A biologist discovered a new animal.Upon studying embryonic development,she observed radial cleavage with the blastopore developing into an anus.This animal was categorized as a

Which one of the following terms does not apply to the phylum Chordata?

Molecular data confirm that cnidarians branched off from the rest of animals before ____________ evolved.

Which one of the following features would indicate that an animal is not a protostome?

Animals are multicellular heterotrophs and obtain their food by ________.

Which one of the following terms applies to the phylum Platyhelminthes?

Which one of the following terms applies to the phylum Cnidaria?

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

Which of the following is not correct regarding the origin of parazoans and eumetazoans?

Select the following phylum that includes deuterostome animals that are exclusively marine and have radial symmetry as adults.

The Science of Biology

The Nature of Molecules

The Chemical Building Blocks of Life

Cell Structure

Membranes

Energy and Metabolism

How Cells Harvest Energy

Photosynthesis

Cell Communication

How Cells Divide

Sexual Reproduction and Meiosis

Patterns of Inheritance

Chromosomes Mapping and the Meiosis - Inheritance Connection

Dna: the Genetic Material

Genes and How They Work

Control of Gene Expression

Biotechnology

Genomics

Cellular Mechanisms of Development

Genes Within Populations

The Evidence for Evolution

The Origin of Species

Systematics and the Phylogenetic Revolution

Genome Evolution

Evolution of Development

The Tree of Life

Viruses

Prokaryotes

Protists

Overview of Green Plants

Fungi

Noncoelomate Invertebrates

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Vertebrates

Plant Form

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Transport in Plants

Plant Nutrition and Soils

Plant Defense Responses

Sensory Systems in Plants

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The Animal Body and Principles of Regulation

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Osmotic Regulation and the Urinary System

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Animal Development

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The Biosphere

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