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Flashcards in mullusks Deck (28):
1

Mollusk

Mollusk are soft bodied interverbrates

2

Gill

Are to remove air from the water.

3

Gastropod

It means stomach foot, has a broad foot , snails have shells but slugs do not have shells

4

Cehpalopod

They are mollusk whose feet have adapted around the mouth and formed tenticals.

5

Mantle

Is a thick layer of tissues that protect the internal organs and produces a shell.

6

Radula

Are tiny rows of teeth that can scrape food from a surface.

7

Bivalve

Bivalves are two shells held on like hinges.

8

Arthropod

It means joint foot, jointed appendages , and exoskeleton, chitin on the outside and organs on the inside.

9

Molting

The process of shedding

10

Metammorphosis

A process in which an animal's body undergoes dramatic changes in form during life circle.

11

Exoskeleton

The exoskeleton is an outer layer skeleton that keeps them from drying out.

12

Appendage

Are legs, fangs, pinchers, . . . extended from the body

13

Arachnid

Has 3 sections, breathes with book lungs or air tubes, some have fangs to eject venom.

14

Chitin

It is the material the exoskeleton is made of.

15

Crustacean

They begin life in water, breather with gills, does metamorphoses and includes crab, crayfish, and lobster.

16

Abdomin

The abdomen contains reproductive organs and the digestive tract.

17

Insect

Has three parts, six legs,( three pairs of legs) goes through metamorphosis.

18

Complete metamorphosis

Four stages in insect life - egg, larva, pupa, and adult.

19

Gradual metamorphosis

No distinct stages of development . Egg hatches into a nymph, develops into an adult.

20

Camoflage

Camouflage means to blend in with surroundings.

21

Thorax

The middle section of a insect and the wings and legs are attached

22

Pupa

Insect is enclosed in a protective covering and changes from larva to an adult.

23

Nymph

Stage in insect life in which the insect resembles the adult

24

Echinoderm

Has a Endoskeleton, lives on ocean floor, name means spiny skin. Also has radial symmetry and has tube feet.

25

Endoskeleton

Spiny internal skeleton made of plates containing caliseum.

26

Water Vascular System

The water vascular system is a fluid system that goes through all the ogans so the animal can breath.

27

Describe ways in which insects are beneficial to humans

Insects eat other harmful insects and make honey, silk and pollinate flowers.

28

Describe ways in which insects protect themselves

camouflage, stingers, they smell or taste bad, or the look like insects that taste or smell bad.