A sponge belongs to this phylum.
This type of coral replaced the principle Silurian reef-forming coral as the main reef-forming coral during Devonian and Carboniferous.
A jellyfish belongs to this phylum.
The age of the Burgess shale fauna is mainly __________.
Why did the innovation of the seed liberate land plants from their dependence on moist conditions and allow them to invade drier habitats in the Devonian?
A Hydrostatic Skeleton is
Animals with an internal skeleton made of bone are called
Which of the following is not a Cniderian?
This quiz will test student€™s basic knowledge of invertebrates and vertebrates.
Lecture 14: reproduction in invertebrates
If you're in mrs. ostendorff's science class, this practice test will help you with the real one on thursday. i ...
Instructions: answer the multiple-choice questions. when you're done, see me for the answers.