Exam 21: Viruses, Bacteria, Archaea, and Protists: the Diversity of Life 1

Which of the following would support the statement that bacteria represent the most fundamentally diverse group on Earth?

Match the following. A) rod-shaped bacteria B) structure found in many viruses, often "borrowed" from the host cell C) round-shaped bacteria D) organelle not found in both bacteria and eukaryotes E) type of organelle found in both bacteria and eukaryotes -Ribosome

Refer to the figure below, and then answer the following question(s). -The missing label indicated by a "2" corresponds to the:

Which of the following would support the hypothesis that bacteria have mutually beneficial relationships with us?

Match the following. A) rod-shaped bacteria B) structure found in many viruses, often "borrowed" from the host cell C) round-shaped bacteria D) organelle not found in both bacteria and eukaryotes E) type of organelle found in both bacteria and eukaryotes -Nucleus

The human immunodeficiency virus targets:

Which statement best describes our current understanding of protist evolution?

Malaria is caused by a bacterium.

Paramecium is a heterotrophic protist that moves using cilia.

Which of the following areas/conditions would be favored by thermophiles?

Bacteria that benefit from living in or on us while we are unaffected by the relationship are termed:

Match the following. A) thermophile B) anaerobe C) halophile D) pseudopod E) heterotroph -Thrives in hot environments

The main decomposers on Earth are the:

Match the following. A) bubonic plague B) "social amoeba" C) a Type-A influenza D) ciliated protist E) truly multicellular algae -Volvox

Plasmodium falciparum is a protozoan that:

Match the following. A) bubonic plague B) "social amoeba" C) a Type-A influenza D) ciliated protist E) truly multicellular algae -Dictyostelium discoideum

Organisms called plasmodial slime molds move by which process?

A protist such as Chlamydomonas may switch to sexual reproduction when:

Which phrase most accurately describes the genome of most viruses?

Scientists mostly agree that viruses are not technically living things. Defend this position based on what you know about what viruses are and how they work.