Test 1

Question 1

Eumetazoa

Answer 1

Clade of animals with true tissues

Question 2

Parazoa

Answer 2

Clade of animals without true tissues (ex: sponge)

Question 3

Protostome

Answer 3

MOUTH FIRST
Clade of bilaterally symmetrical animals in which the first opening in the gastrula typically develops into the mouth

Question 4

Deuterostome

Answer 4

MOUTH SECOND
Clade of bilaterally symmetrical animals in which the first opening in the gastrula typically develops into the anus

Question 5

Larva

Answer 5

Immature stage of animal development; does not resemble the adult of the species

Question 6

Exoskeleton

Answer 6

Skeleton on the outside of an animal

Question 7

Tissue

Answer 7

A group of cells that interact and provide a specific function

Question 8

Organ

Answer 8

Consists of two or more interacting tissues that function as a unit

Question 9

Anatomy

Answer 9

Biological FORM

Question 10

Physiology

Answer 10

Biological FUNCTION

Question 11

Neurons

Answer 11

Interconnected cells that communicate via electrical impulses

Question 12

Hormones

Answer 12

Biochemical synthesized in small quantities in one place and transported to another

Question 13

Axon

Answer 13

Nerve fiber that conducts electrical impulses away from the cell body

Question 14

Dendrite

Answer 14

Short branch extensions that transmit info to the cell body

Question 15

Cell body

Answer 15

Contains the nucleus, mitochondria, and other cytoplasmic organelles of a neuron

Question 16

Stimulus

Answer 16

Changes in body, objects, and events in the surrounding world.

Question 17

Response

Answer 17

Organism’s reaction to the internal or external stimuli

Question 18

Resting Potential

Answer 18

Membrane potential for a neuron not conducting a nerve impulse

Question 19

Action Potential

Answer 19

Brief depolarization that propagates along the cell membrane of an axon

Nerve impulse (signal) that travels along the axon

Question 20

Depolarization

Answer 20

When the membrane potential becomes LESS negative at a particular spot on the neuron’s membrane

Question 21

Hyperpolarization

Answer 21

When the membrane potential becomes MORE negative at a particular spot on the neuron’s membrane

Question 22

Myelin

Answer 22

Fatty material that insulates some nerve fibers in vertebrates, speeding nerve impulse transmission

Question 23

Synapse

Answer 23

Junction at which a neuron communicates with another cell

Question 24

Neurotransmitter

Answer 24

Chemical passed from a neuron to receptors on another neuron or on a muscle or gland cell

Question 25

Cerebrum

Answer 25

Region of the forebrain that controls intelligence, learning, perception, and emotion