Insects are currently thought to have evolved from
a. myriapods.
b. animals.
c. algae.
d. crustaceans.
e. all of these.
Answer: d
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List some of the applications of DNA sequencing
What will be an ideal response?
RNA is a long double-stranded helix containing ribose and uracil
Indicate whether this statement is true or false.
Sodium has one valence electron in its third energy level. To reach a stable energy configuration,
sodium will tend to
a. take up an electron from another atom. b. move its valence electron to the second energy shell. c. give up an electron to another atom. d. share its valence electron with another atom. e. move an electron from the second energy level to the valence shell.
Without _____, humans might have a tail.
A. differentiation B. epigenetics C. cell migrations D. apoptosis E. the maternal gene effect