A plant produces small, dull flowers that produce little or no scent, but carries large amounts of pollen. Which pollination method is most likely for this plant?
a. insects
b. bats
c. wind
d. birds
c. wind
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Few studies have been performed regarding different strategies of communicating _______.
[A] factors related to STD prevention [B] factors affecting contraceptive effectiveness [C] factors limiting the usefulness of given contraceptive method [D] factors related to contraceptive preference
All of the following pertain to nitrogenous bases except
A. guanine pairs with uracil. B. they allow variation from one nucleotide to another which creates the encoded information. C. cytosine and thymine are pyrimidines. D. they form pairs by hydrogen bonding. E. adenine pairs with thymine.
As the ground squirrel's body temperature increases, its respiration rate
a. decreases. b. remains relatively constant. c. increases.
What may be a result of the denaturation of proteins?
A. Formation of hydrogen bonds B. Loss of three-dimensional structure C. Removal of R groups from amino acids D. No change in enzyme activity E. Formation of covalent bonds