If the trends shown in the graph continue, how might this affect photosynthesis?
A) Photorespiration may increase, leading to an increase in photosynthetic production of sugar.
B) Photorespiration may increase, leading to a decrease in photosynthetic production of sugar.
C) C4 and CAM plants would be unable to photosynthesize.
D) There would be no effect on photorespiration, since CO2 and temperature are stable.
Answer: B
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Which is a correct description of hormone action?
A. FSH stimulates Leydig cells in the testes. B. LH stimulates Sertoli cells in the testes. C. Testosterone stimulates corpus luteum. D. GnRH stimulates the anterior pituitary gland. E. Testosterone regulates LH and FSH in a positive feedback loop.
A filter feeder is an animal that:a
has well-developed teeth for stabbing prey. b. secretes paralyzing venom suspended in saliva. c. has a symbiotic relationship with its host. d. entraps food particles from water. e. feeds on nectar while suspended in air.
Cdks bind with ________, enabling the Cdks to function as enzymes
A) kinases B) histones C) p53 D) cyclins E) MPF
Louis Pasteur's experiment illustrated that
A) life began by chemical evolution. B) microbes will grow spontaneously in a nutrient broth that has been sterilized and sealed. C) only some organisms can form spontaneously in nutrient broth. D) microbes will not grow in a nutrient broth that has been sterilized unless air is allowed to enter the vessel through an opening. E) some complex molecules associated with living organisms can be synthesized by heating and cooling a solution of simple molecules and providing an electric spark.