Invertabrate animal Vocabulary flashcards
(23 cards)
Vertabrates
Animals with back bones
Intervertabrates
Animals without a backbone
Consumer
an animal that eats other organisms or organic matter
Gangilon
A mass of nerve cells
Gut
The digestive tract
Coelom
A body cavity that contains the eternal organs
Bilateral symmetry
Only symmetrical down the middle
Radial symmetry
can be symmetrical any way
Asymmetry
no symmetry at all
sponges
they are the simplest invertabrates
Cnidarians
members that have stinging cells
Flatworms
The simplest worm
Roundworms
long slim and round worms
mullusks
Group that includes snails slugs mussels and octopuses.
Open circular system
a circular system in which circular fluid is not contained entirely in the vessels
Closed Circular System
a circulatory system in which the heart circulates the blood through a network of blood vessels that formed a close loop.
Annelid worms
worms that have identical segments
Exoskeloton
hard supporting external structure
Compound eye
an eye composed of many light detectors.
Antenna
Feeler that is on top of an intervertibrate
Metamorphis
rapid change in most organisms from immature form to adult form
Endoskeleton
internal skeleton made of bone or cartilage
water vascular system
canals filled with a fluid that circulates throughout the body of an echinoderm.
