The movement of genes between populations is referred to as

A) mutation.
B) migration.
C) genetic drift.
D) gene flow.


D

Biology & Microbiology

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Which term best describes the nitrogenous base adenine plus the sugar ribose?

A) adenine B) adenosine C) adenosine diphosphate D) adenosine triphosphate E) C followed by A or B

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Osteoporosis is a condition of excessive bone loss caused by an imbalance between osteoblast and osteoclast activity, and occurs primarily in women.

a. true b. false

Biology & Microbiology

With regard to traits, attached earlobes is considered ____

a. a neutral trait b. a beneficial trait

c. a mutation d. deleterious e. adaptive

Biology & Microbiology

Reproductive methods among the ________ are the most advanced of any fish.

A. Osteichthyes (bony fish) B. Placodermi (armored fish) C. Acanthodii (spiny fish) D. Chondrichthyes (sharks)

Biology & Microbiology