Review Questions
Echinoderms have _____.
- triangular symmetry
- radial symmetry
- hexagonal symmetry
- pentaradial symmetry
Hint:
D
The circulatory fluid in echinoderms is _____.
- blood
- mesohyl
- water
- saline
Hint:
C
Echinoderms have _____.
D
The circulatory fluid in echinoderms is _____.
C