animals are

multicellular, heterotrophic, eukaryotic

organisms whose cells lack cell walls.

What kingdom are animals a member of?

invertebrate

chordate

animal that has, for at least one stage of its life,

a dorsal, hollow nerve cord, a notochord, a tail that extends

beyond the anus, and pharyngeal pouches

gathering and responding to information

obtaining and distributing oxygen and other nutrients

reproduce

collecting and eliminating carbon dioxide and other waste

notochord

pharyngeal pouch

feedback inhibition

process in which a stimulus produces

a response that opposes the original stimulus; also called

negative feedback

Features of animal body plans include _____________

levels of organization

body symmetry

differentiation of germ layers

formation of body cavities

patterns of embryological development

segmentation,

cephalization,

limb formation.

animal phyla are defined according to

body plan in which any number of imaginary planes drawn through the center of the body could divide it into equal halves

bilateral symmetry

 body plan in which a single imaginary

line can divide the body into left and right sides that are

mirror images of each other

endoderm

mesoderm

middle germ layer; develops into muscles,

and much of the circulatory, reproductive, and excretory

systems

ectoderm

pseudocoelom

blastula

hollow ball of cells that develops when a zygote

undergoes a series of cell divisions

protostome

deuterostome

group of animals in which the blastopore

becomes an anus, and the mouth is formed from the second

opening that develops

cephalization

A multicellular, eukaryotic heterotroph whose cells lack cell walls is a(n)

protist    

virus   

animal   

plant.

Which of the following is characteristic of all chordates but not found in invertebrates?

a notochord  

four legs  

a circulatory system     

an exoskeleton

The process by which animals take in oxygen and give off carbon dioxide is known as

Responding   

breathing    

reproducing  

excreting

Animals that have a backbone, also called a vertebral column, are known as

Invertebrates   

prokaryotes   

homeostasis 

vertebrates.

 The job of collecting waste materials from a complex animal's body cells and delivering them to organs that will release them from the body is carried out by the

 excretory system     

nervous system  

 circulatory system

digestive system

Most animals reproduce

sexually by producing diploid gametes

asexually by cloning

sexually by producing haploid gametes

asexually by fission

List the characteristics shared by all members of

the animal kingdom.

Describe how feedback inhibition works.

Explain why the word invertebrate may be a useful

word but is not a true category in the system of

classification .

Which body systems are most involved when a

raccoon discovers that a full trash can is a food

source, and it knocks over the can to find the food?

What characteristic distinguishes vertebrates from nonvertebrate chordates?

In what ways do the digestive and respiratory systems depend on the circulatory system to carry out the functions of obtaining

nutrients and eliminating wastes?

How does the way animals dispose of carbon dioxide differ from the way they dispose of ammonia?

Describe generally how the nervous and musculoskeletal systems of a rabbit react when it sees a predator such as a coyote.

Many animals have body symmetry with distinct front and back ends. This type of symmetry is

radial

circular

bilateral

dorsal

An animal whose mouth is formed from the blastopore is a(n)

deuterostome

protostome

endoderm

mesoderm

The developing embryo shown below is a ________________,

a group that includes ____________.

 [image]

a . protostome; invertebrates other than echinoderms

b. protostome; vertebrates

c. deuterostome; echinoderms and chordates

d. deuterostome; invertebrates

A concentration of sense organs and nerve cells in

the anterior end of the body is known as

a. fertilization.

b. cephalization.

c. symmetry.

d. multicellularity.

Which of the following animals shows radial

symmetry?

a. earthworm

b. fish

c. insect

d. sea anemone

Which germ layer produces the nerves and sense

organs of animals?

a. ectoderm

b. endoderm

c. mesoderm

d. periderm

a. two limbs.

b. four limbs .

c. six limbs.

d. eight limbs.

Which of the following is a type of tissue that

arises in most animals during development?

A endoderm C ectoderm

B mesoderm D all of the above

Which of the following is NOT a characteristic of

animals?

A the ability to make their own food

B the ability to move

C eukaryotic cells

D cells that lack cell walls

A hollow ball of cells formed after the zygote

undergoes division is called a

A coelom. C deuterostome.

B protostome. D blastula.

Which trend did NOT occur during invertebrate

evolution?

A specialization of cells

B development of a notochord

C bilateral symmetry

D cephalization

A to supply cells with oxygen and nutrients

B to rid the body of metabolic wastes

C to gather information from the environment

D to break down food

Animals often respond to information processed by

their nervous system by moving around, using their

A circulatory system .

B excretory system.

C musculoskeletal system.

D digestive system.

The concentration of nerve tissue and organs in

one end of the body is called

A cephalization .

B segmentation .

C body symmetry.

D nerve nets.