Initially, which of the following isolating mechanisms is likely to have been the most important in preventing gene flow between the two populations of Rhagoletis?

A) Gamete incompatibility
B) Temporal isolation
C) Mechanical isolation
D) Reduced hybrid viability


Ans: B) Temporal isolation

Biology & Microbiology

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The enzymes responsible for hydrolyzing glucose into glyceraldehyde-3-phosphate (G3P) are found in which part of

the cell?

a. cytosol b. mitochondria c. rough ER d. nucleus e. cell membrane

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The two broad classes of cells in the nervous system include                1. those responsible for information processing, and                2. those providing mechanical and metabolic support.These two categories of specialized cells are called

A. microglia and Schwann cells. B. Schwann cells and glial cells. C. neurons and glial cells. D. neurons and fibrocytes. E. astrocytes and Schwann cells.

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The receptors in post synaptic cells are the basis on which the synapse can be defined as inhibitory and excitatory

a. true b. false

Biology & Microbiology