Marine Biology 1 Final Review

Front

What phylum do animals with soft bodies, a mantle, a muscular foot, and often a radula belong to?

Back

Mollusca

Front

Which group do clams, mussels, snails, octopuses, squids, and nautilus belong to?

Back

Mollusks

Front

What methods can be used to determine whether two organisms are related?

Back

DNA analysis, Comparative embryology, Behavior, Anatomy, All of these

Front

What are organisms such as drifting animals, plants, and algae collectively known as?

Back

Plankton

Front

Which class of cnidarians is known for having the most potent venom and is commonly called box jellies?

Back

Cubozoa

Front

What is the primary characteristic of the phylum Mollusca?

Back

Soft-bodied animals with a mantle and muscular foot.

Front

What is a radula and which group of animals typically possesses it?

Back

A radula is a toothed, chitinous ribbon used for feeding, typically found in mollusks.

Front

What distinguishes nekton from plankton in marine biology?

Back

Nekton are actively swimming organisms, while plankton are drifting organisms.

Front

What is the significance of DNA analysis in understanding evolutionary relationships?

Back

DNA analysis helps determine genetic similarities and differences, indicating evolutionary relationships.

Front

What are the main classes of cnidarians?

Back

Hydrozoa, Scyphozoa, Anthozoa, Cubozoa.