In an area with high soil nutrient availability, mycorrhizal fungi are

A) commensal.
B) competitive.
C) parasitic.
D) neutral.


C

Biology & Microbiology

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The famous “bell-shaped curve” that usually results

when test scores are plotted against number of students is an example of what type of selection? a. disruptive b. stabilizing c. divergent d. variable e. directional

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Which of the following is transported in greater

quantities in the lymphatic system than in the blood? a. red blood cells b. wastes c. fats d. amino acids e. white blood cells

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A brown-eyed couple already has a child with blue eyes. What is the probability that their next child will have blue

eyes, assuming that the brown eye allele is dominant and the blue eye allele is recessive? a. 0 b. 1/4 c. 1/2 d. 3/4 e. 1

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The mechanism by which DNA is licensed to replicate only once during each S phase involves

A) CENP-A binding to CEN DNA. B) MCM proteins binding only to CEN DNA. C) MCM proteins binding only to replicated DNA. D) MCM proteins binding only to nonreplicated DNA. E) MCM proteins binding to both replicated and nonreplicated DNA.

Biology & Microbiology