________ believed that use (or lack of use) of body parts enables individual to develop certain traits that it passes on to its offspring while ________ believed that species are fixed forms that do not change over time
A) Aristotle… Lamarck
B) Lamarck… Aristotle
C) Darwin… Aristotle
D) Lamarck… Darwin
B
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An epidermal growth factor (EGF) stimulates a cell to enter mitosis by binding to a receptor on the cell's plasma membrane. The EGF receptor is a product of a _____ gene
a. repressor b. structural c. master d. proto-onco e. growth
With regard to photosynthesis,
photorespiration a. is more efficient in producing carbohydrates. b. predominates in C3 plants in cool weather when water is plentiful. c. predominates in C4 plants on hot days. d. produces the same amount of PGA. e. does none of these
In glycolysis, glucose is converted to
What will be an ideal response?
How do the hormones involved in blood calcium homeostasis actually function?
A) Parathyroid hormone stimulates calcium deposit in bones and increases calcium uptake in the kidneys. B) A falling blood calcium level causes the thyroid to release calcitonin. C) Calcitonin acts to lower blood calcium levels, and parathyroid hormone acts to raise blood calcium. D) Both parathyroid hormone and calcitonin act to raise blood calcium levels.