Flashcards in Invertebrates Deck (24):
An animal with a backbone.
An organism without a backbone.
An organism that gets its own food.
A structure containing nerve cells.
A digestive system.
A body cavity that contains organs.
The property of being able to be divided into symmetrical halves.
Symmetry around a center axis.
Lack of symmetry.
A simple invertebrate that belongs to the animal kingdom
A phylum of invertebrates that live in the ocean and have radial symmetry.
A simple parasitic worm that has no backbone
A parasitic invertebrate that feeds of mammals.
They are a large phylum that have soft segmented bodies most of them have some kind of shell.
Open Circulatory System
Blood is pumped by a heart into the body cavities where tissues are surrounded by the blood.
Closed Circulatory System
They have all their blood enclosed in vessels.
There a phylum of segmented worms.
The lines on the body of annelid worms.
An external skeleton that supports and protects the outside of an animals body.
An eye with many individual units.
Long thin sensory appendages.
A change of form.
An internal skeleton that supports an animal.