Question 1

Unique features of animals include ingesting their food,having a cell wall and the ability to move at some point in their life cycle.

Accepted Answer

A) True 
 B)False  False

Question 2

Earthworms possess both male and female organs on separate segments; thus,mating consists of "parallel parking" in opposite directions and cross-fertilizing.Given this,which of the following is (are)true?

Accepted Answer

A) This is evidence of a primitive state that is generally less efficient than separate sexes. 
B) This is primarily to allow them to self-fertilize if no other worm is in their sector of the soil. 
C) This is an advantage since they can mate with any other earthworm of the same species that they encounter. 
D) Maintaining any system not clearly male or female is disadvantageous; the earthworm is trapped in an evolutionary dead end. 
A) This is evidence of a primitive state that is generally less efficient than separate sexes. 
B) This is primarily to allow them to self-fertilize if no other worm is in their sector of the soil. 
C) This is an advantage since they can mate with any other earthworm of the same species that they encounter. 
D) Maintaining any system not clearly male or female is disadvantageous; the earthworm is trapped in an evolutionary dead end. C

Question 3

A recent study of the marine hawksbill turtles' stomach contents revealed that sponges constitute a major portion of their diet.Sponge beds are generally protected from predators by their calcium and silica crystals,but these were found in the turtles' digestive systems.These protective structures are called

Accepted Answer

A) amoebocytes. 
B) osculum. 
C) choanocytes. 
D) spicules. 
E) spongin. 
A) amoebocytes. 
B) osculum. 
C) choanocytes. 
D) spicules. 
E) spongin. D

Question 4

Which of the following is NOT a characteristic of all animals?

Accepted Answer

A) Animals are heterotrophic by ingestion or absorption. 
B) Animals produce gametes by meiosis. 
C) Animals digest their food internally. 
D) Animals are multicellular eukaryotes. 
E) The adult form is diploid in an alternation of generation life cycle. 
A) Animals are heterotrophic by ingestion or absorption. 
B) Animals produce gametes by meiosis. 
C) Animals digest their food internally. 
D) Animals are multicellular eukaryotes. 
E) The adult form is diploid in an alternation of generation life cycle.

Question 5

The segments of a tapeworm that contain female and male sex organs are called

Accepted Answer

A) proglottids. 
B) cercariae. 
C) sporocysts. 
D) scolexes. 
E) glycocalyxes. 
A) proglottids. 
B) cercariae. 
C) sporocysts. 
D) scolexes. 
E) glycocalyxes.

Question 6

Marine annelids (polychaetes)are different than earthworms in that polychaetes

Accepted Answer

A) lack the setae that earthworms have. 
B) have paddle-like parapodia that earthworms do not have. 
C) have segments,whereas marine annelids do not. 
D) lack a larval form,whereas earthworms have a larvae form. 
E) marine annelids have a well developed coelom,whereas earthworms do not. 
A) lack the setae that earthworms have. 
B) have paddle-like parapodia that earthworms do not have. 
C) have segments,whereas marine annelids do not. 
D) lack a larval form,whereas earthworms have a larvae form. 
E) marine annelids have a well developed coelom,whereas earthworms do not.

Question 7

Which of the following features is common among the roundworms as well as the arthropods?

Accepted Answer

A) Periodically shed their outer covering. 
B) Radial symmetry. 
C) Endoskeleton. 
D) Undergo metamorphosis. 
E) Segmentation is readily apparent. 
A) Periodically shed their outer covering. 
B) Radial symmetry. 
C) Endoskeleton. 
D) Undergo metamorphosis. 
E) Segmentation is readily apparent.

Question 8

Which of the following are NOT cnidaria?

Accepted Answer

A) corals 
B) planaria 
C) sea anemones 
D) hydrozoa 
E) Portuguese man-of-war 
A) corals 
B) planaria 
C) sea anemones 
D) hydrozoa 
E) Portuguese man-of-war

Question 9

Roundworms and arthropods are both ecdysozoans.This means they

Accepted Answer

A) have a trochophore larvae. 
B) have a body cavity that is completely lined with mesoderm. 
C) have the anus arise at or near the blastopore. 
D) periodically shed their outer covering. 
E) None of the above are true. 
A) have a trochophore larvae. 
B) have a body cavity that is completely lined with mesoderm. 
C) have the anus arise at or near the blastopore. 
D) periodically shed their outer covering. 
E) None of the above are true.

Question 10

Molluscs share a three-part body plan consisting of a

Accepted Answer

A) scolex,proglottids,and an anus. 
B) corona,stomach,and intestines. 
C) visceral mass,mantle,and foot. 
D) eyespots,digestive system,and nervous system. 
A) scolex,proglottids,and an anus. 
B) corona,stomach,and intestines. 
C) visceral mass,mantle,and foot. 
D) eyespots,digestive system,and nervous system.

Question 11

The structure that directs food into the body of a rotifer is called the corona.

Accepted Answer

A) True 
 B)False

Question 12

Which of these is a bivalve?

Accepted Answer

A) slug 
B) octopus 
C) earthworm 
D) snail 
E) oyster 
A) slug 
B) octopus 
C) earthworm 
D) snail 
E) oyster

Question 13

What is the function of the buds formed by hydras?

Accepted Answer

A) They aid in digestion. 
B) They develop into cnidocytes and can be used in defense. 
C) They develop into the nerve net and are used to detect prey. 
D) They produce new epidermal tissue to replace the old tissue. 
E) They are a form of asexual reproduction. 
A) They aid in digestion. 
B) They develop into cnidocytes and can be used in defense. 
C) They develop into the nerve net and are used to detect prey. 
D) They produce new epidermal tissue to replace the old tissue. 
E) They are a form of asexual reproduction.

Question 14

Human tapeworm infections occur by

Accepted Answer

A) eating insufficiently cooked infected pork or beef. 
B) being bitten by a mosquito. 
C) ingesting eggs in contaminated water. 
D) eating freshly peeled fruit. 
E) All of the choices are correct. 
A) eating insufficiently cooked infected pork or beef. 
B) being bitten by a mosquito. 
C) ingesting eggs in contaminated water. 
D) eating freshly peeled fruit. 
E) All of the choices are correct.

Question 15

Sea stars and sea urchins operate their tube feet by

Accepted Answer

A) a water vascular system that regulates water pressure. 
B) cilia transporting hemolymph from chamber to chamber. 
C) sticky threads leading from the mouth and primitive brain. 
D) actin and myosin fibers that slide and give muscle actions to the five arms or "rays." 
A) a water vascular system that regulates water pressure. 
B) cilia transporting hemolymph from chamber to chamber. 
C) sticky threads leading from the mouth and primitive brain. 
D) actin and myosin fibers that slide and give muscle actions to the five arms or "rays."

Question 16

Identify which of the following feature(s)are found in the cnidarians but not in the comb jellies.

Accepted Answer

A) They are free swimming invertebrates. 
B) They contain a capsule called a nematocyst. 
C) Produce movement by the beating of cilia. 
D) Much of the body is composed of a jellylike substance called mesoglea. 
E) These species can be found in the marine environment. 
A) They are free swimming invertebrates. 
B) They contain a capsule called a nematocyst. 
C) Produce movement by the beating of cilia. 
D) Much of the body is composed of a jellylike substance called mesoglea. 
E) These species can be found in the marine environment.

Question 17

In deuterostomes,

Accepted Answer

A) cleavage is radial and the fate of the cells is indeterminate. 
B) spiral cleavage occurs. 
C) the fate of cells is fixed and determinate. 
D) the mouth appears at or near the blastopore. 
A) cleavage is radial and the fate of the cells is indeterminate. 
B) spiral cleavage occurs. 
C) the fate of cells is fixed and determinate. 
D) the mouth appears at or near the blastopore.

Question 18

If you live on a river delta or coastline,you may not be able to eat the local shellfish because of high levels of toxins,even though you may be able to drink the water taken from the same source.Why?

Accepted Answer

A) Shellfish seasonally produce toxic substances. 
B) Shellfish regularly consume poisonous red tide organisms. 
C) Most harmless native clams have been replaced by bad species. 
D) Shellfish filter-feed and concentrate the dilute pollutants from the water,thus acting as early warning indicators of severe pollution. 
A) Shellfish seasonally produce toxic substances. 
B) Shellfish regularly consume poisonous red tide organisms. 
C) Most harmless native clams have been replaced by bad species. 
D) Shellfish filter-feed and concentrate the dilute pollutants from the water,thus acting as early warning indicators of severe pollution.

Question 19

Name one of the smallest,if not the smallest,animals that are sometimes referred to as "resurrection animalcules."

Accepted Answer

A) planaria 
B) parasitic mites 
C) fruit flies 
D) parasitic 
E) rotifers 
A) planaria 
B) parasitic mites 
C) fruit flies 
D) parasitic 
E) rotifers

Question 20

Most animal species possess the necessary features to be classified in which phylum?

Accepted Answer

A) Mollusca 
B) Arthropoda 
C) Chordata 
D) Echinodermata 
E) Annelida 
A) Mollusca 
B) Arthropoda 
C) Chordata 
D) Echinodermata 
E) Annelida

Exam 28: Invertebrate Evolution

Unique features of animals include ingesting their food,having a cell wall and the ability to move at some point in their life cycle.

Earthworms possess both male and female organs on separate segments; thus,mating consists of "parallel parking" in opposite directions and cross-fertilizing.Given this,which of the following is (are)true?

Which of the following is NOT a characteristic of all animals?

The segments of a tapeworm that contain female and male sex organs are called

Marine annelids (polychaetes)are different than earthworms in that polychaetes

Which of the following features is common among the roundworms as well as the arthropods?

Which of the following are NOT cnidaria?

Roundworms and arthropods are both ecdysozoans.This means they

Molluscs share a three-part body plan consisting of a

The structure that directs food into the body of a rotifer is called the corona.

Which of these is a bivalve?

What is the function of the buds formed by hydras?

Human tapeworm infections occur by

Sea stars and sea urchins operate their tube feet by

Identify which of the following feature(s)are found in the cnidarians but not in the comb jellies.

In deuterostomes,

If you live on a river delta or coastline,you may not be able to eat the local shellfish because of high levels of toxins,even though you may be able to drink the water taken from the same source.Why?

Name one of the smallest,if not the smallest,animals that are sometimes referred to as "resurrection animalcules."

Most animal species possess the necessary features to be classified in which phylum?

A View of Life

Basic Chemistry

The Chemistry of Organic Molecules

Cell Structure and Function

Membrane Structure and Function

Metabolism: Energy and Enzymes

Photosynthesis

Cellular Respiration

The Cell Cycle and Cellular Reproduction

Meiosis and Sexual Reproduction

Mendelian Patterns of Inheritance

Molecular Biology of the Gene

Regulation of Gene Expression

Biotechnology and Genomics

Darwin and Evolution

How Populations Evolve

Speciation and Macroevolution

Origin and History of Life

Taxonomy,systematics,and Phylogeny

Viruses,bacteria,and Archaea

Protist Evolution and Diversity

Fungi Evolution and Diversity

Plant Evolution and Diversity

Flowering Plants: Structure and Organization

Flowering Plants: Nutrition and Transport

Flowering Plants: Control of Growth Responses

Flowering Plants: Reproduction

Vertebrate Evolution

Human Evolution

Animal Organization and Homeostasis

Circulation and Cardiovascular Systems

The Lymphatic and Immune Systems

Digestive Systems and Nutrition

Respiratory Systems

Body Fluid Regulation and Excretory Systems

Neurons and Nervous Systems

Sense Organs

Locomotion and Support Systems

Hormones and Endocrine Systems

Reproductive Systems

Animal Development

Behavioral Ecology

Population Ecology

Community and Ecosystem Ecology

Major Ecosystems of the Biosphere

Conservation of Biodiversity

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