Module #11: The Invertebrates of Kingdom Animalia Flashcards Preview

Exploring Creation with Biology > Module #11: The Invertebrates of Kingdom Animalia > Flashcards

Flashcards in Module #11: The Invertebrates of Kingdom Animalia Deck (32)
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1

Vertebrates

Animals that possess a backbone

2

Spherical Symmetry

An organism possesses spherical symmetry if it can be cut into two identical halves by any cut that runs through the organism's center

3

Radial symmetry

An organism possesses radial symmetry if it can be cut into two identical halves by any longitudinal cut through it's center

4

Bilateral symmetry

An organism possesses bilateral symmetry if it can be cut into two identical halves by a single longitudinal cut along it's center which divides it into right and left halves

5

Epidermis

An outer layer of cells designed to provide protection

6

Mesenchyme

The jelly like substance that separates the epidermis from the inner cells in a sponge

7

Collar cells

Flagellated cells that push water through a sponge

8

Amoebocytes

Cells that move using pseudopods and preform different functions in different animals

9

Invertebrates

Animals that lack a backbone

10

Gemmule

A cluster of cells encased in a hard, spicule-reinforced shell

11

Polyp

The sessile, tubular form of Cnidaria with a mouth and tentacles at one end and a basal disk at the other

12

Medusa

A free swimming cnidarian with a bell-shaped body and tentacles

13

Epithelium

Animal tissue consisting of one or more layers of cells that have only one free surface, because the other surface adheres to a membrane or other substance

14

Mesoglea

The jellylike substance that separates the epithelial cells in a Cnidarian

15

Nematocysts

Small capsules that contain a toxin which is injected into prey or predators

16

Testes

Organs that produce sperm

17

Ovaries

Organs that produce eggs

18

Anterior end

The end of an animal that contains it's head

19

Posterior end

The end of an animal that contains its tail

20

Circulatory system

A system designed to transport food and other necessary substances throughout a creature's body

21

Nervous system

A system of sensitive cells that respond to stimuli such as sound, touch, and taste

22

Ganglia (Singular: ganglion)

Masses of nerve cell bodies

23

Hermaphrodidic

Possessing both male and female reproductive organs.

24

Regeneration

The ability to regrow a missing part of the body

25

Mantle

A sheath of tissue that encloses the vital organs of a mollusk, makes the mollusk's shell, and performs respiration

26

Shell

A tough, multilayered structure secreted by the mantle, generally used for protection, but sometimes for upper body support.

27

Visceral hump

A hump that contains a mollusk's heart, digestive, and excretory organs

28

Foot

A muscular organ that is used for locomotion and takes a variety of forms depending on the animal

29

Radula

An organ covered with teeth that mollusk's use to scrap food into their mouths

30

Univalve

An organism with a single she'll