Under which of the following conditions would the rate of transpiration INCREASE?
a. When the weather changes and air becomes drier
b. When the temperature of a leaf decreases
c. When stomata close at night
d. During a storm, when atmospheric pressure is low
Answer:
a. When the weather changes and air becomes drier
d. During a storm, when atmospheric pressure is low
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Which of the following does not occur during the follicular phase of the menstrual cycle?
A. Progesterone levels increase to high levels. B. 10–12 oocytes begin to mature. C. The uterine lining is shed. D. FSH levels increase. E. All of the answer options occur during the follicular phase.
Genetic studies have found that Charcot-Marie-Tooth may be caused by a mutation in the gene Mitofusin-2 (MFN2), which causes mitochondria to form large clumps. In what area of a neuron are these clumps most likely to cause a problem?
Charcot-Marie-Tooth is the most commonly inherited peripheral neuropathy, and has no known cure. Patients suffer damage to motor and sensory neurons, leading to degeneration of muscles and gradual loss of motor control. A. axon B. synapse C. soma D. dendrite E. myelin Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content/Choose Answer · What do you already know about components of the nervous system? What other information is related to the question? 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?
An animal with a gastrointestinal tract is the ___________.
A. jellyfish B. planarian C. hydra D. sponge E. earthworm
With regard to RNA polymerase proofreading ability, which of the following is true?
A) RNA backtracking can remove noncomplementary nucleotides. B) RNA and DNA polymerase proofreading are essentially identical. C) There are specialized mRNA repair pathways that remove noncomplementary nucleotides. D) No proofreading occurs. E) A 3' ? 5' exonuclease fixes all errors in mRNA.