mullusks Flashcards
Mollusk
Mollusk are soft bodied interverbrates
Gill
Are to remove air from the water.
Gastropod
It means stomach foot, has a broad foot , snails have shells but slugs do not have shells
Cehpalopod
They are mollusk whose feet have adapted around the mouth and formed tenticals.
Mantle
Is a thick layer of tissues that protect the internal organs and produces a shell.
Radula
Are tiny rows of teeth that can scrape food from a surface.
Bivalve
Bivalves are two shells held on like hinges.
Arthropod
It means joint foot, jointed appendages , and exoskeleton, chitin on the outside and organs on the inside.
Molting
The process of shedding
Metammorphosis
A process in which an animal’s body undergoes dramatic changes in form during life circle.
Exoskeleton
The exoskeleton is an outer layer skeleton that keeps them from drying out.
Appendage
Are legs, fangs, pinchers, . . . extended from the body
Arachnid
Has 3 sections, breathes with book lungs or air tubes, some have fangs to eject venom.
Chitin
It is the material the exoskeleton is made of.
Crustacean
They begin life in water, breather with gills, does metamorphoses and includes crab, crayfish, and lobster.
Abdomin
The abdomen contains reproductive organs and the digestive tract.
Insect
Has three parts, six legs,( three pairs of legs) goes through metamorphosis.
Complete metamorphosis
Four stages in insect life - egg, larva, pupa, and adult.
Gradual metamorphosis
No distinct stages of development . Egg hatches into a nymph, develops into an adult.
Camoflage
Camouflage means to blend in with surroundings.
Thorax
The middle section of a insect and the wings and legs are attached
Pupa
Insect is enclosed in a protective covering and changes from larva to an adult.
Nymph
Stage in insect life in which the insect resembles the adult
Echinoderm
Has a Endoskeleton, lives on ocean floor, name means spiny skin. Also has radial symmetry and has tube feet.
Endoskeleton
Spiny internal skeleton made of plates containing caliseum.
Water Vascular System
The water vascular system is a fluid system that goes through all the ogans so the animal can breath.
Describe ways in which insects are beneficial to humans
Insects eat other harmful insects and make honey, silk and pollinate flowers.
Describe ways in which insects protect themselves
camouflage, stingers, they smell or taste bad, or the look like insects that taste or smell bad.
