Island populations are more vulnerable to

__________ than their mainland counterparts.
a. storms
b. disease
c. droughts
d. genetic drift
e. all of these


Answer: e

Biology & Microbiology

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Multiple hydrogen bonds together stabilize proteins into a spiral structure called a ____

a. water lattice

b. alpha helix c. chemical groups d. delta minus e. delta plus

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The fossil records indicates that ________ lived in families of male-female pairs, used fire, and left evidence of social cooperation (lived communally).

A) Homo habilis B) Australopithecus C) Dryopithecus D) Homo erectus

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A limitation of transgenesis is that

A) it only works on very short genes. B) it only works on vertebrates. C) the transgene can insert many copies of itself in the genome. D) the transgene could disappear before it inserts in the genome.

Biology & Microbiology

Identify the stage of mitosis in photo B

a. interphase b. prophase c. metaphase d. anaphase e. telophase

Biology & Microbiology