Describe the alteration of five selected biomes by humans. How have different biomes been converted for commercial
or agricultural use? Of those selected, which has undergone the most extensive change? What will be an ideal response?
Concepts to Consider: Tundra--oil exploration and military use; taiga--clear-cut logging;
temperate rain forest--logging; temperate deciduous forest--logging and agricultural use;
temperate grasslands--agriculture; chaparral--fire control, development; desert--recreational
uses, groundwater use; savanna--agriculture (rangeland); tropical forest--logging, agriculture
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Describe the breeding program initiated by King Frederick William of Prussia in the early 1700s to supply tall soldiers to the Potsdam Grenadier Guard. Was it successful? Why or why not?
What will be an ideal response?
A mutation that involves the addition, subtraction, or substitution of a single base is known as:
a) an inversion. b) polypoloidy. c) a pickle d) a basic mutation. e) a point mutation.
The short arm of a chromosome is denoted by the letter _______ and the long arm by the letter _______
A. p, q B. s, l C. q, p D. c, d
Dopamine derived from the hypothalamus is the prominent hormone controlling pituitary prolactin secretion. Dopamine inhibits prolactin secretion. What do you predict would happen if the pituitary were removed from the base of the brain and transplanted to some distant place in the body (for instance on top of the kidney), such that dopamine could no longer regulate prolactin secretion? You can assume that the transplanted pituitary will be exposed to a ready supply of blood vessels.
A. Dopamine secretion would increase. B. Dopamine secretion would decrease. C. Prolactin secretion would decrease. D. Prolactin secretion would increase. E. Both dopamine and prolactin secretion would decrease.