Scientific theories _____
A) are nearly the same things as hypotheses
B) are supported by, and make sense of, many observations
C) cannot be tested because the described events occurred only once
D) are predictions of future events
B
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The covalent bond between adjacent amino acids in a polypeptide chain is referred to as a ____ bond
Some help with this please?
Current research in behavioral ecology focuses on the overall contribution that behavior makes to an animal's
A. fitness. B. learning. C. competitive strategies. D. foraging efficiency. E. length of life.
Megaspores produce ____
a. female gametophytes b. pollen grains c. sporophytes d. male gametophytes e. diploid tissue
If a daughter expresses an X-linked recessive gene, she inherited the trait from ____
a. her mother b. her father c. both parents d. neither parent e. her grandmother