Which of the following best describes a biome?
A) three different classes of ecosystems based on high, medium, or low rainfall
B) three different classes of ecosystems based high, medium, or low temperature
C) small terrestrial regions with similar climate and the similar communities of organisms
D) large terrestrial regions with similar climate and similar types of plant life
Answer: D
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Cohesion rings hold the replicated DNA/sister chromatids near each other and at the transition between metaphase and anaphase:
a. securin becomes active and breaks the cohesion ring b. securin becomes active and degrades separase c. securin becomes degraded and activates separase. d. anaphase promoting complex is active and degrades securin. e. two of the above.
Refer to Figure 42-2. The neuron labeled 3 is:
a. an interneuron in the gray mater of the cord.
b. an interneuron in the white mater of the cord.
c. a sensory neuron in the gray mater of the cord.
d. a sensory neuron in the white mater of the cord.
e. a motor neuron in the gray mater of the co
Late nuclear equivalence and differential gene expression. What will be an ideal response?
Athletes who consume adequate carbohydrates experience all of the following EXCEPT
a. reduced risk of chronic fatigue. b. adequate liver glycogen stores. c. increased body fat. d. adequate muscle glycogen stores.