2020 Science Flash Card 2

Question 1

vertebrates

Answer 1

animals or species that have a backbone

Question 2

Invertebrates

Answer 2

animals or species without a backbone

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

a digestive tract

Question 6

Coelom

Answer 6

body cavity that contains internal organs

Question 7

Bilateral Symmetry

Answer 7

two sides of its body mirror each other

Question 8

Radial Symmetry

Answer 8

the body is organized around the center

Question 9

Asymmetry

Answer 9

you cannot draw straight line to divide its body into two or more equal parts its body is not organized around a center

Question 10

Sponges

Answer 10

the simplest invertebrate they are asymmetrical and have no tissues, gut, or neurons

Question 11

Cnidarians

Answer 11

Cnidarians are more complex than sponges. they have tissues and a gut to digest food.

Question 12

Flatworms

Answer 12

flatworms are the simplest words they are divided into three major classes planarians and Marine flatworms, flukes, and tapeworms.

Question 13

Roundworms

Answer 13

not all round worms eat dead tissues. many roundworms are parasites. some of these roundworms, including pinworms and hookworms, infect human.

Question 14

Mollusks

Answer 14

Nails, slugs, clams, oysters,, and octopuses are all mollusks. most of these animals are in the ocean. But some live in freshwater, on land.

Question 15

Open circulatory system

Answer 15

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

Question 16

Closed circulatory system

Answer 16

a circulatory system which the heart circulates blood through a network of blood vessels that form a closed-loop

Question 17

Annelid worms

Answer 17

like roundworms and flatworms, annelid worms have bilateral symmetry. But annelid worms are more complex than other worms

Question 18

Exoskeleton

Answer 18

a hard, external, supporting structure

Question 19

Compound eye

Answer 19

an eye composed of many light detectors.

Question 20

Antenna

Answer 20

can you order that is on the head of an invertebrate, such as crustacean or an insect, that senses of touch, taste, or smell

Question 21

Metamorphosis

Answer 21

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

Question 22

Endoskeleton

Answer 22

can an internal skeleton is made of bone or cartilage

Question 23

Water vascular system

Answer 23

system of canals filled with a watery fluid that circulates throughout the body of an echinoderm