Invertebrate Flashcards
vertebrates
an animal that has a backbone
Water vascular system
a system of canals filled with a watery fluid that circulates throughout the body of an echinoderm
Endoskeleton
an internal skeleton made of a bone and cartilage
invertebrates
an animal that does not have a backbone
consumer
an organism that eats other organisms
Ganglion
a mass of nerve cells
Antenna
A feeler that is on the head of an invertebrate
Compound eye
a eye composed of many light detectors
Exoskeleton
a hard, external supporting structure.
Gut
the digestive tract
coelom
a body cavity that contains the internal organs
Asymmetry
The absence of symmetry
sponges
asymmetrical invertebrates that suck up water
cnidarians
invertebrates that have stinging cells
flatworms
three major groups that are bilateral
