Birds associating the bright colors of certain butterflies with an unpleasant taste is an example of
(A) instinct
(B) imprinting
(C) insight learning
(D) trial-and-error learning
Ans: (D) trial-and-error learning
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A ______________ group consists of the most recent common ancestor and all of its descendants.
Fill in the blank(s) with the appropriate word(s).
Women with breast cancers that are estrogen-sensitive ____
a. become ill when taking prescription estrogen b. can exacerbate their symptoms with only a small increase in estrogen levels c. are in danger of faster growth of cancer cells in the presence of estrogen d. will often experience cancer remission with increased uptake of estrogen e. do not produce their own estrogen and must obtain it through diet or supplements
The act of using microorganisms to harm the civilian population intentionally is referred to as:
a. biosecurity. b. bio crime. c. microterrorism. d. cactiterrorism.
The chloroplast is derived from a precursor organelle called a _____
Fill in the blank(s) with correct word