Flashcards

Question 1

Between 95 and 99 percent of animals are this.

Answer 1

Invertebrate

Question 2

Hard or tough outer coverings that provide a framework of support.

Answer 2

Exoskeletons

Question 3

Internal skeletons

Answer 3

Endoskeleton

Question 4

Animal with a backbone

Answer 4

Vertebrate

Question 5

Born with both sets of genitalia

Answer 5

Hermaphrodite

Question 6

Fertilized egg

Answer 6

Zygote

Question 7

When the sperm and egg combine inside the body

Answer 7

Internal fertilization

Question 8

When egg and sperm combine outside the body

Answer 8

External Fertilization

Question 9

After mitosis of the embryo they form fluid filled balls called this.

Answer 9

Blastula

Question 10

The blastula continuing mitosis

Answer 10

Gastrula

Question 11

Inner layer of cells in Gastrula

Answer 11

Endoderm

Question 12

Outer layer of cells in the Gastrula

Answer 12

Ectoderm

Question 13

Cell division continues in animals this forms between the endoderm and ectoderm

Answer 13

Mesoderm

Question 14

Describes the similarity or balance among body structures of organisms.

Answer 14

Symmetry

Question 15

This symmetry can be divided along any plane through a central axis into roughly equal halves.

Answer 15

Radial Symmetry

Question 16

Can be divided into mirror halves

Answer 16

Bilateral symmetry

Question 17

If its bilateral it has these

Answer 17

Anterior, Posterior

Question 18

If it has Anterior and Posterior it has this body plan

Answer 18

Cephalization

Question 19

In addition to Cephalization with bilateral symmetry all animals have this

Answer 19

Dorsal

Question 20

The underside

Answer 20

Ventral

Question 21

Fluid filled cavity

Answer 21

coelom

Question 22

Fluid filled cavity that develops between the mesoderm and the endoderm

Answer 22

pseudocoelomates

Question 23

Animals that do not have coelom

Answer 23

Acoelomates

Question 24

Mouth develops first

Answer 24

Protostomes

Question 25

Anus develops first

Answer 25

Deuterostomes

Question 26

Gets food by filtering water

Answer 26

Filter Feeder

Question 27

Do not move

Answer 27

Sessile

Question 28

Stingers on cnidarian tentacles

Answer 28

cnidocytes

Question 29

Inner cell layer of cnidarians surround a space in the stomach

Answer 29

Gastrovacular

Question 30

Nervous system of a cnidarian

Answer 30

Nerve net

Question 31

Two body forms of cnidarians

Answer 31

Polyp, Medusa