Which of the following mechanisms increases genetic diversity?
a. crossing-over between chromosomes during meiosis
b. independent assortment of chromosomes during meiosis
c. random DNA mutations
d. crossing-over between chromosomes and independent assortment of chromosomes during
meiosis
e. crossing-over between chromosomes, independent assortment of chromosomes during
meiosis, and random DNA mutations
E
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In an experiment the subjects or items being investigated are divided into the experimental group and
(a) the nonexperimental group. (b) the control group. (c) the statistics group. (d) none of these choices.
Which of the following is not part of the shoot system of plants?
a. the stem b. the flower c. fruit d. taproot e. branches
________ is secreted by the pancreas to neutralize acid in chyme.
A. Bile B. Bicarbonate C. Chymotrypsin D. Insulin E. Hydrochloric acid
Mammals have an akinetic skull in large part because of its _____ type of suspensorium
Fill in the blank(s) with the appropriate word(s).