The first cells were probably 

A. Eukaryotic.
B. Archaea.
C. Aerobic.
D. Prokaryotic.


D. Prokaryotic.

Biology & Microbiology

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How are symbiotic relationships important in agriculture and food production? Use at least two different examples to support your answer and explain how understanding these symbioses could help produce more food

What will be an ideal response?

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Directional selection favors:

A. one narrow intermediate phenotype. B. two otherwise maladapted phenotype. C. one extreme phenotype. D. two extreme phenotype

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The amount of turgor that is enough to stop

osmosis is called

a. the wilting point. b. osmotic pressure. c. hypotonicity. d. expansion pressure. e. hypertonicity

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Which of the following refers to the loss of a portion of a chromosome?

A) inversion B) translocation C) deletion D) duplication E) monosomy

Biology & Microbiology