The plant hormone that promotes dormancy in some
plants and seeds is
a. abscisic acid.
b. auxin.
c. gibberellin.
d. ethylene.
e. none of these.
Answer: a
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The concept of homeostasis originated with
A. Claude Bernard. B. Charles Darwin. C. James Watson. D. Rosalind Franklin. E. Gregor Mendel.
Cholesterol helps plasma membranes become less ________
Fill in the blank(s) with correct word
Humans have the diploid number of chromosomes, 2n = 46. This also indicates humans
A. have two genomes. B. are more intelligent than worms. C. have at least two genotypes that can result from fertilization. D. have 23 chromosomes that are necessary for life.
How do atoms interact with one another to form chemical bonds?
a. They share or transfer entire electron shells. b. They share or transfer valence electrons. c. They share or transfer isotopes. d. They share or transfer protons.