Exam 14: Prokaryotes, Protists, and Viruses

The ____ produce bioluminescent molecules.

Foraminifera are predatory protists with a ____ shell, which is the ultimate source of _____.

_____, 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

Which is an example of a benefit attributed to bacteria?

All free viral particles contain _____.

  In panel "A," what is being injected into the host cell?

____ allow bacteria to join together to transfer genes.

____ is the best studied species of bacteria.

Algins, thickening compounds used in the food industry, are obtained from ____.

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.

The ____ spend most of their lives as individual haploid organisms.

Ciliates, such as Paramecium , are likely to be found in ____ or in the gut of mammalian grazers where they aid in the digestion of _____.

Place the following hypothesized events of the beginning of life in their correct order. I organic polymers form II inorganic molecules form III DNA-based cells form IV organic monomers form V protocells in the RNA world form

Bacteria can exchange genes with other bacteria by a method called ____.

What are the four main organic subunits found in all organisms?

Some bacteria in the deep oceans use iron as an energy source to make carbohydrates from carbon dioxide. These bacteria would be classified as ____.

 _____, which probably evolved from infoldings of the plasma membrane, first appear in the fossil record about 1.8 million years ago.