The primary role of extinction is that it a. removes all except the perfectly adapted species b. makes room for new species to evolve c. Protozoan protists are generally classified according to a. nutrition b. cell shape c. size d. Parazoans that have an internal skeleton composed of spicules. Porifera b. Giardia c. Platyhelminthes d. Ctenophora e. Mollusca 23.
Paramecium is a multinucleated protozoan.
Some numbers may be used more than once. 2,3,4 a large population of animals is split in two by an ocean. The hybrid progeny may become self-fertile, giving rise to a distinct new species Part D. Essay. Answer in the space provided. The value of each question is indicated.