invertebrates Flashcards
Vertebrates
A verebrate is an animal that has a backbone .Vertebrates include fishes,amphibians,reptiles,birds,and mammals.
invertebrates
an animal that does not have a backbone.
Consumers
an organism that eats other organism or organic matter.
Ganglion
a mass of nerve cells
Gut
the digestive tract.
Coelom
a body cavity that contains the internal organs.
Bilateral symmetry
the two sides of its body mirror each other
Radical symmetry
the body is organized around the center
Asymmetry
you cannot draw a straight line to divide its body in two or more equal parts.
sponge
water flows into a cavity in the body bringing in food and oxygen
Cnidarians
sting and poison their prey
Flatworms
bilateral symmetry the simplest worm
Roundworms
bilateral symmetry simple nervous system.
Mollusks
all have complex ganglia that control breathing movement and digestion.
Open circulatory system
circulatory system in not contained in vessels
