The__________ Division of the Geologic Time Scale Is an Era

question 15

Multiple Choice

The__________ division of the geologic time scale is an era of the Phanerozoic eon.

• A)Permian
• B)Paleocene
• C)Proterozoic
• D)Paleozoic

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Definitions:

Pili

Hair-like appendages found on the surface of many bacteria, involved in adhesion to surfaces and in conjugation (the transfer of DNA between bacterial cells).

Conjugation

Conjugation is a form of genetic exchange between bacteria where DNA is transferred from one bacterium to another through direct contact.

Ribosomes

Cellular organelles that serve as the site of biological protein synthesis, translating messenger RNA into proteins.

Bacteriophage

Type of virus that infects bacteria.