Question 1

Which characteristic is common to all molluscs?

Accepted Answer

A) mantle 
B) tentacles 
C) radula 
D) brain 
E) open circulatory system 
A) mantle 
B) tentacles 
C) radula 
D) brain 
E) open circulatory system A

Question 2

A characteristic that is common to cnidarians is:

Accepted Answer

A) an osculum. 
B) a medusa stage in the life cycle. 
C) that they create coral reefs. 
D) stinging cells. 
E) a complete digestive tract. 
A) an osculum. 
B) a medusa stage in the life cycle. 
C) that they create coral reefs. 
D) stinging cells. 
E) a complete digestive tract. D

Question 3

What replaces the membranes and nutrition source of amniotic eggs in organisms that exhibit live birth without amniotic eggs?

Accepted Answer

A) yolk sac 
B) amnion 
C) placenta 
D) allantois 
E) chorion 
A) yolk sac 
B) amnion 
C) placenta 
D) allantois 
E) chorion C

Question 4

Which would be a fact supporting the hypothesis that echinoderms such as sea stars evolved into radial symmetry from bilateral symmetry?

Accepted Answer

A) Their larvae have bilateral symmetry. 
B) They use their appendages in a bilateral manner. 
C) Their brains show the mirror image development of bilateral symmetry. 
D) They swim like animals with bilateral symmetry. 
A) Their larvae have bilateral symmetry. 
B) They use their appendages in a bilateral manner. 
C) Their brains show the mirror image development of bilateral symmetry. 
D) They swim like animals with bilateral symmetry.

Question 5

External fertilization of eggs in animals is:

Accepted Answer

A) rarely seen except in aquatic environments. 
B) most common in arthropods. 
C) less common in cnidarians. 
D) absent in vertebrate species. 
E) most common among hermaphroditic species. 
A) rarely seen except in aquatic environments. 
B) most common in arthropods. 
C) less common in cnidarians. 
D) absent in vertebrate species. 
E) most common among hermaphroditic species.

Question 6

Bilateral symmetry refers to distribution of body parts:

Accepted Answer

A) randomly in pairs from top to bottom. 
B) around a central axis. 
C) similarly on right and left sides. 
D) in pie-slice sections. 
E) in no particular order. 
A) randomly in pairs from top to bottom. 
B) around a central axis. 
C) similarly on right and left sides. 
D) in pie-slice sections. 
E) in no particular order.

Question 7

In addition to maintaining a wet environment necessary for survival of the embryo,what other essential characteristic does the amniotic egg possess?

Accepted Answer

A) a shell that most predators cannot break 
B) ability to absorb nutrients from the environment 
C) easier fertilization 
D) low energy/material for the mother to produce 
E) ability to allow for gas exchange 
A) a shell that most predators cannot break 
B) ability to absorb nutrients from the environment 
C) easier fertilization 
D) low energy/material for the mother to produce 
E) ability to allow for gas exchange

Question 8

Platyhelminthes is the first phylum to possess a coelom.

Accepted Answer

A) True 
 B)False

Question 9

Which statement about nematodes is most accurate?

Accepted Answer

A) They are mainly parasites. 
B) They are mainly crop pests. 
C) They all have straight, flattened bodies. 
D) They fit into numerous ecological roles including detritivores. 
E) They have exoskeletons made of cellulose. 
A) They are mainly parasites. 
B) They are mainly crop pests. 
C) They all have straight, flattened bodies. 
D) They fit into numerous ecological roles including detritivores. 
E) They have exoskeletons made of cellulose.

Question 10

Which of the following animal phyla are most closely related?

Accepted Answer

A) Echinodermata and Chordata 
B) Arthropoda and Annelida 
C) Porifera and Cnidaria 
D) Platyhelminthes and Nematoda 
A) Echinodermata and Chordata 
B) Arthropoda and Annelida 
C) Porifera and Cnidaria 
D) Platyhelminthes and Nematoda

Question 11

Copulation is necessary for all animals using internal fertilization.

Accepted Answer

A) True 
 B)False

Question 12

Extra protective behaviors toward young may have evolved from a common ancestor in evolutionary lines leading to the:

Accepted Answer

A) mammals, turtles, and snakes. 
B) crocodiles, dinosaurs, and birds. 
C) turtles, snakes, and lizards. 
D) amphibians, lizards, and fish. 
E) dinosaurs, turtles, and lizards. 
A) mammals, turtles, and snakes. 
B) crocodiles, dinosaurs, and birds. 
C) turtles, snakes, and lizards. 
D) amphibians, lizards, and fish. 
E) dinosaurs, turtles, and lizards.

Question 13

Which of the following is a group of parasitic flatworms?

Accepted Answer

A) annelids 
B) flukes 
C) nematodes 
D) leeches 
E) sea anemones 
A) annelids 
B) flukes 
C) nematodes 
D) leeches 
E) sea anemones

Question 14

When we say an animal has an "open circulatory system," this means that:

Accepted Answer

A) a small amount of blood may leak out of vessels. 
B) blood flows out of vessels and into spaces or sinuses. 
C) the animal has a single-chambered heart, so blood mixes from all areas. 
D) there are no vessels-blood simply fills all spaces inside the coelom. 
E) movement of the animal is solely responsible for moving circulatory fluid. 
A) a small amount of blood may leak out of vessels. 
B) blood flows out of vessels and into spaces or sinuses. 
C) the animal has a single-chambered heart, so blood mixes from all areas. 
D) there are no vessels-blood simply fills all spaces inside the coelom. 
E) movement of the animal is solely responsible for moving circulatory fluid.

Question 15

The overwhelming majority of animals are:

Accepted Answer

A) invertebrates. 
B) vertebrates. 
C) unicellular. 
D) mammals. 
E) sessile. 
A) invertebrates. 
B) vertebrates. 
C) unicellular. 
D) mammals. 
E) sessile.

Question 16

All chordates are vertebrates.

Accepted Answer

A) True 
 B)False

Question 17

At some point in their lives,all chordates have:

Accepted Answer

A) jaws. 
B) gills. 
C) a brain. 
D) a dorsal nerve cord. 
E) a ventral nerve cord. 
A) jaws. 
B) gills. 
C) a brain. 
D) a dorsal nerve cord. 
E) a ventral nerve cord.

Question 18

Flatworms are the most primitive animal phylum to have:

Accepted Answer

A) asymmetry. 
B) radial symmetry. 
C) organs. 
D) a circulatory system. 
E) muscle tissue. 
A) asymmetry. 
B) radial symmetry. 
C) organs. 
D) a circulatory system. 
E) muscle tissue.

Question 19

Cnidarians typically obtain food by:

Accepted Answer

A) filter feeding. 
B) stinging and pulling prey to the mouth with tentacles. 
C) amoeboid-like engulfing of prey. 
D) forming cooperative arrangements with photosynthetic organisms. 
A) filter feeding. 
B) stinging and pulling prey to the mouth with tentacles. 
C) amoeboid-like engulfing of prey. 
D) forming cooperative arrangements with photosynthetic organisms.

Question 20

Sponges acquire food by ________ as water passes through.

Accepted Answer

The answer of Sponges acquire food by ________ as water...

Exam 23: Animals: the Diversity of Life 3

Which characteristic is common to all molluscs?

A characteristic that is common to cnidarians is:

What replaces the membranes and nutrition source of amniotic eggs in organisms that exhibit live birth without amniotic eggs?

Which would be a fact supporting the hypothesis that echinoderms such as sea stars evolved into radial symmetry from bilateral symmetry?

External fertilization of eggs in animals is:

Bilateral symmetry refers to distribution of body parts:

In addition to maintaining a wet environment necessary for survival of the embryo,what other essential characteristic does the amniotic egg possess?

Platyhelminthes is the first phylum to possess a coelom.

Which statement about nematodes is most accurate?

Which of the following animal phyla are most closely related?

Copulation is necessary for all animals using internal fertilization.

Extra protective behaviors toward young may have evolved from a common ancestor in evolutionary lines leading to the:

Which of the following is a group of parasitic flatworms?

When we say an animal has an "open circulatory system," this means that:

The overwhelming majority of animals are:

All chordates are vertebrates.

At some point in their lives,all chordates have:

Flatworms are the most primitive animal phylum to have:

Cnidarians typically obtain food by:

Sponges acquire food by ________ as water passes through.

Science As a Way of Learning: a Guide to the Natural World

Fundamental Building Blocks: Chemistry, water, and Ph

Lifes Components: Biological Molecules

Lifes Home: the Cell

Lifes Border: the Plasma Membrane

Lifes Mainspring: an Introduction to Energy

Vital Harvest: Deriving Energy From Food

The Green Worlds Gift: Photosynthesis

The Links in Lifes Chain: Genetics and Cell Division

Preparing for Sexual Reproduction: Meiosis

The First Geneticist: Mendel and His Discoveries

Units of Heredity: Chromosomes and Inheritance

Passing on Lifes Information: Dna Structure and Replication

How Proteins Are Made: Genetic Transcription, translation, and Regulation

The Future Isnt What It Used to Be: Biotechnology

An Introduction to Evolution: Charles Darwin, evolutionary Thought, and the Evidence for Evolution

The Means of Evolution: Microevolution

The Outcomes of Evolution: Macroevolution

A Slow Unfolding: the History of Life on Earth

Arriving Late,traveling Far: the Evolution of Human Beings

Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

Fungi: the Diversity of Life 2

Plants: the Diversity of Life 4

The Angiosperms: Form and Function in Flowering Plants

Body Support and Movement: the Integumentary, skeletal, and Muscular Systems

Communication and Control 1: the Nervous System

Communication and Control 2: the Endocrine System

Defending the Body: the Immune System

Transport and Exchange 1: Blood and Breath

Transport and Exchange 2: Digestion, nutrition, and Elimination

An Amazingly Detailed Script: Animal Development

How the Baby Came to Be: Human Reproduction

An Interactive Living World 1: Populations in Ecology

An Interactive Living World 2: Communities in Ecology

An Interactive Living World 3: Ecosystems and Biomes

Filters