After Aristotle, one advance in scientific methodology came through the use of logic. This allowed thinkers to:
a. formulate and test hypotheses based on evidence.
b. recognize significance of testing one's hypotheses.
c. move carefully from facts to general principles.
d. All of the above.
e. B and C.
C
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Gibberellins affect many processes in plants. In seeds embryos, gibberellins are believed to signal hydrolysis of the stored food reserves through inducing the synthesis of the enzyme a-amylase. Which food source are gibberellins targeting with the release of a-amylase?
A. omega-3 fatty acids B. starch C. glycogen D. fructose E. protein Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about hormone and enzyme function in plants? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The animals that remain isosmotic to the surrounding seawater are called:
a. osmoconformers. b. osmoregulators. c. hyperosmotic. d. hyposmotic. e. euryhaline.
Fertilization by multiple sperm is blocked by
a. the exocytosis of secretory vesiclesthat coat the egg. b. a hardening of the plasma membrane. c. a hyperpolarization of the plasma membrane. d. the release of spermicidal jelly.
A piece of DNA that is self-replicating and is used to carry desired genes into new cells is called a(n)
a. library. b. clone. c. vector. d. intron