Exam 13: Early Life Forms and the Viruses

Flagellated protozoans possess a ____, layer of elastic proteins just beneath the plasma membrane. Flagellated protozoans possess a ____, layer of elastic proteins just beneath the plasma membrane.

Red algae ____.

A coccus is a(n)____.

The ____ of flagellated protozoans are analogous to the ____ of prokaryotes.

____ allow bacteria to join together to transfer genes.

Archaea ____.

Prokaryotic cells are ____.

Both mitochondria and chloroplasts are thought to have evolved by the process of ____.

What is the function of bacterial flagella?

Which is an example of a benefit attributed to bacteria?

____ obtain both energy and carbon from organic compounds.

The first life-related and carbon-based molecule, ____, was synthesized in vitro by a German chemist in 1825.

Outbreaks of ____ in humans typically arise when a person comes in contact with an infected animal.

Diatoms are characterized by ____, and are the source of economically useful_____.

_____, which occurs when two related viruses infect the same host at the same time, can lead to the emergence of new viral strains. Genetic isolation

____  are believed to have once existed as independent prokaryotes.