Invertebrates

Question 1

animals without a backbone

Answer 1

Invertebrate

Question 2

hard or tough outer coverings that provide a framework for support

Answer 2

Exoskeleton

Question 3

internal skeleton

Answer 3

Endoskeleton

Question 4

has an endoskeleton and a backbone

Answer 4

Vertebrate

Question 5

produce both egg and sperm in the same body

Answer 5

Hermaphrodite

Question 6

when the sperm and egg combine inside the body

Answer 6

Internal fertilization

Question 7

occur when egg and sperm combine outside the animals body

Answer 7

External fertilization

Question 8

can be divided along any plane, into equal halves

Answer 8

Radial symmetry

Question 9

divided into mirror image halves along central axis

Answer 9

Bilateral symmetry

Question 10

tendency to concentrate nervous tissue and sensory organs at the anterior end of the animal

Answer 10

Cephalization

Question 11

fluid filled cavity

Answer 11

Coelom

Question 12

fluid filled cavity that develops between mesosphere and the endoderm

Answer 12

Pseudocoelom

Question 13

animals that do not have a coelom

Answer 13

Acoelomate

Question 14

the mouth develops from the first opening in the gastrula

Answer 14

Protostome

Question 15

anus develops from the first opening in the gastrula

Answer 15

Deuterostome

Question 16

they are attached and stay in one place

Answer 16

Sessile

Question 17

cnidarian tentacles

Answer 17

Cnidocytes

Question 18

a group of nerve cell bodies that coordinates incoming incoming and outgoing nerve signals

Answer 18

Ganglion

Question 19

process in which body parts that are missing due to damage or predation can be regrown

Answer 19

Regeneration

Question 20

fluid within a closed space that provides rigid support for muscles to work against

Answer 20

Hydrostatic skeleton

Question 21

contracted by eating raw or under cooked pork and pork products

Answer 21

Trichinosis

Question 22

blood is pumped into open vessels in open spaces

Answer 22

Open circulatory system

Question 23

blood is confined to vessels

Answer 23

closed circulatory system

Question 24

food and soil taken in by the mouth pass through the pharynx

Answer 24

Crop

Question 25

a muscular sac containing hard particles that help grind soil and food before they pass into the intestine

Answer 25

Gizzard

Question 26

a thickened band of segments

Answer 26

Clitellum

Question 27

the middle body region

Answer 27

Thorax

Question 28

located at the posterior end of the arthropod

Answer 28

Abdomen

Question 29

thorax region fused with the head into a single structure

Answer 29

Cephalothorax

Question 30

shedding the exoskeleton

Answer 30

Molting

Question 31

mouth parts of most arthropods include a pair of appendages

Answer 31

Mandibles

Question 32

branching tubes that go into smaller ones

Answer 32

Tracheal tubes

Question 33

saclike pockets with highly folded walls for respiration

Answer 33

Book lungs

Question 34

trachea and book lungs open to the outside of the body

Answer 34

Spiracles

Question 35

help terrestrial preserve water in their bodies

Answer 35

Malpigian tubules