Invertebrate Animal Vocabulary

Question 1

Vertebrates

Answer 1

backboned animal

Question 2

Invertebrates

Answer 2

non-backboned animal

Question 3

Consumer

Answer 3

an organism that eats other organisms or organic matter

Question 4

Ganglion

Answer 4

a mass of nerve cells

Question 5

Gut

Answer 5

the digestive tract

Question 6

Coelom

Answer 6

body cavity that contains the internal organs

Question 7

Bilateral Symmetry

Answer 7

the same on each side

Question 8

Radial Symmetry

Answer 8

the body is organized to go around the center

Question 9

Asymmetry

Answer 9

you can’t draw a straight line down the middle of it

Question 10

Sponges

Answer 10

simple invertebrates

Question 11

Cnidarians

Answer 11

they are more complex than sponges

Question 12

Flatworms

Answer 12

they have a fluid inside them

Question 13

Roundworms

Answer 13

long slim round like spaghetti

Question 14

Mollusks

Answer 14

snails slugs clams oysters squids and octopus

Question 15

Open circulatory system

Answer 15

circulatory system in which circulatory fluid is not contained entirely within vessels

Question 16

Closed circulatory system

Answer 16

our circulatory system in which the heart circulates blood through a network of blood vessels that forms a closed loop

Question 17

Annelid worms

Answer 17

often called segmented worms because their bodies have segments

Question 18

Exoskeleton

Answer 18

hard external supportting structure

Question 19

Compound eye

Answer 19

an eye composed of many light detectors

Question 20

Antenna

Answer 20

a sensor

Question 21

Metamorphosis

Answer 21

a phase in the life cycle of many animals during which a rapid of change from the immature form of an organism adult form takes place

Question 22

Endoskeleton

Answer 22

an internal skeleton made of bone and cartilage

Question 23

water vascular system

Answer 23

play System of canals filled with a watery fluid that circulates throughout the body of an echinoderm neither