Invertebrate Animal Vocab

Question 1

an animal that has a backbone

Answer 1

vertebrate

Question 2

an animal that does not have a backbone

Answer 2

invertebrate

Question 3

an organism that eats other organisms or organic matter

Answer 3

consumer

Question 4

a mass of nerve cells

Answer 4

ganglion

Question 5

the digestive tract

Answer 5

gut

Question 6

a body cavity that contains the internal organs

Answer 6

coelom

Question 7

It has equal right and left sides

Answer 7

bilateral symmetry

Question 8

body organized around the center, like the spokes of a wheel

Answer 8

radial symmetry

Question 9

It’s body is not organized around a center

Answer 9

asymmetry

Question 10

creaters that live in the ocean who take in water through spores

Answer 10

sponges

Question 11

creatures with things on them

Answer 11

Cniderians

Question 12

worms that are flat

Answer 12

flatworms

Question 13

worms that can live in many different environments

Answer 13

roundworms

Question 14

The molluscs compose the large phylum of invertebrate animals known as the Mollusca

Answer 14

mollusks

Question 15

Vertebrates, and a few invertebrates, have a closed circulatory system

Answer 15

open circulatory system

Question 16

Closed circulatory systems have the blood closed at all times within vessels of different size and wall thickness

Answer 16

closed circulatory system

Question 17

lso known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including ragworms, earthworms, and leeches.

Answer 17

Annelid worms

Question 18

is the external skeleton that supports and protects an animal’s body, in contrast to the internal skeleton

Answer 18

Exoskeleton

Question 19

an eye consisting of an array of numerous small visual units,

Answer 19

compound eye

Question 20

ither of a pair of long, thin sensory appendages on the heads of insects, crustaceans, and some other arthropods. c

Answer 20

Antenna

Question 21

A change in the form and often habits of an animal during normal development after the embryonic stage

Answer 21

Metamorphosis

Question 22

internal skeleton

Answer 22

Endoskeleton

Question 23

he water vascular system is a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration

Answer 23

water vascular system