Which was first on the planet, prokaryotes or eukaryotes?

A) Eukaryotes
B) Prokaryotes
C) They both appear in the fossil record at about the same time.
D) It is unknown.


B

Biology & Microbiology

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A collection of fibrous intracellular attachment proteins is called a(n)

A) annulus. B) connexon. C) plaque. D) tonofilament. E) both choices C and D

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Interferon directly interacts with and destroys viruses

Indicate whether this statement is true or false.

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The protistan sister group of plants are the

a. rhodophytes b. streptophytes c. cryptophytes d. euglenophytes e. stramenopiles

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Gene flow, defined as the movement of genes from one population to another, can take place by migration as well as

A. mating between individuals of adjacent populations. B. mating with certain trait-containing individuals. C. mating with dominant phenotypes. D. removing the barriers between the populations. E. physical movement of genes within an individual by transposons.

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