Question 1

Use the following to answer questions:
Refer to the diagram below.  
-Identify the life cycle stage (larva or adult) and the name of the lower animal.

Accepted Answer

Adult; lan

Question 2

The chordates

Accepted Answer

A)  all have a bony backbone. 
B)  include some animals without a nervous system. 
C)  pass through a developmental stage with pharyngeal slits. 
D)  are poorly represented in the fossil record. 
E)  are all filter feeders. 
A)  all have a bony backbone. 
B)  include some animals without a nervous system. 
C)  pass through a developmental stage with pharyngeal slits. 
D)  are poorly represented in the fossil record. 
E)  are all filter feeders.

Question 3

A key difference between Old World monkeys and New World monkeys is that the latter

Accepted Answer

A)  have a prehensile tail. 
B)  are aboreal. 
C)  have a placenta. 
D)  are less closely related to tarsiers. 
E)  All of the above 
A)  have a prehensile tail. 
B)  are aboreal. 
C)  have a placenta. 
D)  are less closely related to tarsiers. 
E)  All of the above

Question 4

One of the features that distinguishes the mammals from the reptiles is their _______ heart.

Accepted Answer

The answer of One of the features that distinguishes the...

Question 5

You are in a tropical forest and find an organism that has bony vertebrae, no legs, lays eggs in moist patches, and uses its skin for gaseous exchange. You have found a(n)

Accepted Answer

A)  anuran. 
B)  caecilian. 
C)  salamander. 
D)  snake. 
E)  lizard. 
A)  anuran. 
B)  caecilian. 
C)  salamander. 
D)  snake. 
E)  lizard.

Question 6

Vertebrates have a jointed dorsal _______, which replaced the notochord as their primary support.

Accepted Answer

The answer of Vertebrates have a jointed dorsal _______, which...

Question 7

The swim bladders of bony fishes

Accepted Answer

A)  evolved from lunglike sacs that supplemented the gills in respiration. 
B)  are used for respiration in most contemporary species. 
C)  are organs of buoyancy that help them control their depth in the water column. 
D)  prevented them from existing in a marine environment. 
E)  Both a and c 
A)  evolved from lunglike sacs that supplemented the gills in respiration. 
B)  are used for respiration in most contemporary species. 
C)  are organs of buoyancy that help them control their depth in the water column. 
D)  prevented them from existing in a marine environment. 
E)  Both a and c

Question 8

Which of the following statements about human evolution is false?

Accepted Answer

A)  Bipedalism was a hominid adaptation for life on land. 
B)  Increases in the size of hominid brains preceded the appearance of language and culture. 
C)  The extinction of the Neanderthals was caused by the emergence of Homo habilis. 
D)  Humans are not the direct descendants of modern-day chimpanzees. 
E)  Homo sapiens coexisted with H. neanderthalensis in portions of Europe and Asia. 
A)  Bipedalism was a hominid adaptation for life on land. 
B)  Increases in the size of hominid brains preceded the appearance of language and culture. 
C)  The extinction of the Neanderthals was caused by the emergence of Homo habilis. 
D)  Humans are not the direct descendants of modern-day chimpanzees. 
E)  Homo sapiens coexisted with H. neanderthalensis in portions of Europe and Asia.

Question 9

Marsupials differ from eutherians in that

Accepted Answer

A)  marsupials do not have a placenta. 
B)  there are no marsupials that can fly. 
C)  there are more species of marsupials than of eutherians. 
D)  the marsupials are more widespread than eutherians. 
E)  marsupials are more developed at birth than eutherians. 
A)  marsupials do not have a placenta. 
B)  there are no marsupials that can fly. 
C)  there are more species of marsupials than of eutherians. 
D)  the marsupials are more widespread than eutherians. 
E)  marsupials are more developed at birth than eutherians.

Question 10

The evolutionary lineage leading to birds is nested within the more inclusive monophyletic group of the _______, which also includes the ornithischians and saurischians.

Accepted Answer

The answer of The evolutionary lineage leading to birds is...

Question 11

The echinoderms and hemichordates are collectively known as _______, since they both have bilaterally symmetrical, ciliated larvae.

Accepted Answer

A)  ambulacrarians 
B)  echinozoans 
C)  asterozoans 
D)  pterobranchs 
E)  yunnanozoans 
A)  ambulacrarians 
B)  echinozoans 
C)  asterozoans 
D)  pterobranchs 
E)  yunnanozoans

Question 12

Which of the following structures is not part of the amniote egg?

Accepted Answer

A)  Extraembryonic membranes 
B)  Yolk 
C)  Shell 
D)  Bone 
E)  Chorion 
A)  Extraembryonic membranes 
B)  Yolk 
C)  Shell 
D)  Bone 
E)  Chorion

Question 13

Acorn worms and pterobranchs have a body plan consisting of a

Accepted Answer

A)  head and trunk. 
B)  head, trunk, and abdomen. 
C)  proboscis, collar, and trunk. 
D)  head, proboscis, collar, and trunk. 
E)  head, proboscis, and trunk. 
A)  head and trunk. 
B)  head, trunk, and abdomen. 
C)  proboscis, collar, and trunk. 
D)  head, proboscis, collar, and trunk. 
E)  head, proboscis, and trunk.

Question 14

Which of the following echinoderm groups was much more abundant in the past than it is today?

Accepted Answer

A)  Crinoids 
B)  Brittle stars 
C)  Sea stars 
D)  Sea urchins and sand dollars 
E)  Sea cucumbers 
A)  Crinoids 
B)  Brittle stars 
C)  Sea stars 
D)  Sea urchins and sand dollars 
E)  Sea cucumbers

Question 15

_______ possess a _______ in their larval stage that is lost in the adult.

Accepted Answer

A)  Tunicates; tunic 
B)  Larvaceans; notochord 
C)  Lancelots; tail 
D)  Sea squirts; notochord 
E)  Salps; foot 
A)  Tunicates; tunic 
B)  Larvaceans; notochord 
C)  Lancelots; tail 
D)  Sea squirts; notochord 
E)  Salps; foot

Question 16

Some biologists do not consider hagfishes vertebrates because they

Accepted Answer

A)  are nearly blind. 
B)  have a weak circulatory system. 
C)  have direct development. 
D)  lack vertebrae and have skeleton made of cartilage. 
E)  can change their sex from year to year. 
A)  are nearly blind. 
B)  have a weak circulatory system. 
C)  have direct development. 
D)  lack vertebrae and have skeleton made of cartilage. 
E)  can change their sex from year to year.

Question 17

Which of the following characteristics is not unique to mammals?

Accepted Answer

A)  Hair 
B)  Sweat glands 
C)  Milk 
D)  Complete separation of deoxygenated blood from oxygenated blood 
E)  Highly differentiated teeth 
A)  Hair 
B)  Sweat glands 
C)  Milk 
D)  Complete separation of deoxygenated blood from oxygenated blood 
E)  Highly differentiated teeth

Question 18

The sister group to the vertebrates includes an animal called a(n) _______, which produces large amounts of slime as a defense mechanism.

Accepted Answer

A)  hagfish 
B)  lamprey 
C)  eel 
D)  slug 
E)  salp 
A)  hagfish 
B)  lamprey 
C)  eel 
D)  slug 
E)  salp

Question 19

It is thought that jaws, which are found in the higher vertebrates, evolved from

Accepted Answer

A)  cartilaginous arches used to support gills. 
B)  small bones associated with the brain capsule. 
C)  the bony teeth found on lamprey tongues. 
D)  progressive hardening of the cyclostome mouth. 
E)  None of the above 
A)  cartilaginous arches used to support gills. 
B)  small bones associated with the brain capsule. 
C)  the bony teeth found on lamprey tongues. 
D)  progressive hardening of the cyclostome mouth. 
E)  None of the above

Question 20

Part of the extraordinary success of the reptiles can be attributed to the evolution of the _______, which made development outside of the water possible.

Accepted Answer

The answer of Part of the extraordinary success of the...

Exam 33: Deuterostome Animals

Use the following to answer questions: Refer to the diagram below. -Identify the life cycle stage (larva or adult) and the name of the lower animal.

The chordates

A key difference between Old World monkeys and New World monkeys is that the latter

One of the features that distinguishes the mammals from the reptiles is their _______ heart.

You are in a tropical forest and find an organism that has bony vertebrae, no legs, lays eggs in moist patches, and uses its skin for gaseous exchange. You have found a(n)

Vertebrates have a jointed dorsal _______, which replaced the notochord as their primary support.

The swim bladders of bony fishes

Which of the following statements about human evolution is false?

Marsupials differ from eutherians in that

The evolutionary lineage leading to birds is nested within the more inclusive monophyletic group of the _______, which also includes the ornithischians and saurischians.

The echinoderms and hemichordates are collectively known as _______, since they both have bilaterally symmetrical, ciliated larvae.

Which of the following structures is not part of the amniote egg?

Acorn worms and pterobranchs have a body plan consisting of a

Which of the following echinoderm groups was much more abundant in the past than it is today?

_______ possess a _______ in their larval stage that is lost in the adult.

Some biologists do not consider hagfishes vertebrates because they

Which of the following characteristics is not unique to mammals?

The sister group to the vertebrates includes an animal called a(n) _______, which produces large amounts of slime as a defense mechanism.

It is thought that jaws, which are found in the higher vertebrates, evolved from

Part of the extraordinary success of the reptiles can be attributed to the evolution of the _______, which made development outside of the water possible.

Studying Life

Small Molecules and the Chemistry of Life

Proteins, Carbohydrates, and Lipids

Nucleic Acids and the Origin of Life

Cells: the Working Units of Life

Cell Membranes

Cell Signaling and Communication

Energy, Enzymes, and Metabolism

Pathways That Harvest Chemical Energy

Photosynthesis: Energy From Sunlight

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

Dna and Its Role in Heredity

From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

Regulation of Gene Expression

Genomes

Recombinent Dna and Biotechnology

Differential Gene Expression in Development

Development and Evolutionary Change

Evidence and Mechanisms of Evolution

Reconstructing and Using Phylogenies

Species and Their Formation

Evolution of Genes and Genomes

The History of Life on Earth

Bacteria and Archaea: the Prokaryotic Domains

The Origin and Diversification of Eukaryotes

Plants Without Seeds: From Water to Land

The Evolution of Seed Plants

Fungi: Recyclers, Pathogens, Parasites, and Plant Partners

Animal Origins and the Evolution of Body Plans

Protostome Animals

The Plant Body

Transport in Plants

Plant Nutrition

Regulation of Plant Growth

Reproduction in Flowering Plants

Plant Responses to Environmental Challenges

Physiology, Homeostasis, and Temperature Regulation

Animal Hormones

Immunology: Animal Defense Systems

Animal Reproduction

Animal Development

Neurons and Nervous Systems

Sensory Systems

The Mammalian Nervous System: Structure and Higher Function

Musculoskeletal Systems

Gas Exchange in Animals

Circulatory Systems

Nutrition, Digestion, and Absorption

Salt and Water Balance and Nitrogen

Animal Behavior

Ecology and the Distribution of Life

Population Ecology

Species Interaction and Coevolution

Community Ecology

Ecosystems and Global Ecology

Conservation Biology

Filters

_ possess a _ in their larval stage that is lost in the adult.