The Time in the History of Earth When Evolution Was

question 6

Multiple Choice

The time in the history of Earth when evolution was progressing at the most rapid rate, as evidenced by fossils such as those of the Burgess Shale, is the:

• A) Cambrian period.
• B) Ordovician period.
• C) Silurian period.
• D) Devonian period.
• E) Carboniferous period.

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Definitions:

Unfavorable

Unfavorable refers to conditions or circumstances that are detrimental, adverse, or not beneficial.

Photosynthesis

The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.

Lysogenic Pathway

A process in which a virus integrates its DNA into the DNA of the host cell and replicated along with it silently, without killing the host.

Viral DNA

The genetic material of a virus, composed of DNA, which contains the necessary instructions for the virus to replicate within a host cell.