Science quiz Flashcards
1
Q
Cnidarians
A
Invertebrates that have stinging cells and take food into a central body cavity
2
Q
Mollusks
A
Invertebrates with soft, unsegmented bodies that are often protected by a hard shell
3
Q
Arthropods
A
Invertebrates that have hard outer coverings, segmented bodies, and Pairs of jointed appendages
4
Q
Exoskeleton
A
The outer coverings, or outer skeleton
5
Q
Echinoderm
A
An invertebrate that has an internal skeleton and a system of fluid-filled tubes
6
Q
Endoskeleton
A
An internal skeleton
7
Q
All worms have what type of symmetry?
A
Bilateral Symmetry
8
Q
About 96 percent of known animals are what?
A
Invertebrates
