Plants make ____, which are similar to female sex hormones in mammals but have nothing to do with sexual reproduction in plants.

A. oxytocin
B. phytoestrogens
C. auxins
D. cytokinins
E. gibberellins


Answer: B

Biology & Microbiology

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Why is mutation described as the only process that can increase genetic variation?

A. It is the only process that can produce new alleles. B. It is the only process that changes allele frequency. C. It is the only process that cannot be influenced by artificial selection. D. It is the only process that is not random. E. It is the only process that can produce deleterious results.

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________ are proteins associated with clathrin-coated vesicles that are involved in the binding of vesicles to specific receptors.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The fly agaric, a giant toadstool, consumes dead organic material, so it is said to be a(n) ________

Fill in the blank(s) with correct word

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When you eat a hamburger, you are eating at which trophic level?

A. level 1 B. level 2 C. level 3 D. level 4

Biology & Microbiology