Which of the following is a density-dependent population-controlling factor?
A) earthquake B) volcanic eruption C) tsunami D) influenza outbreak
Answer: D
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Areas between wind convection cells are characterized by having stable and consistent winds
Indicate whether the statement is true or false
What is the function of phloem?
a. it helps the plant prevent desiccation b. it carries water and minerals c. it carries photosynthetic sugars d. it allows for gas exchange e. it does more than one of these
Which of the following is NOT true about the
enzyme telomerase? a. It can re-establish telomere length. b. It is found in stem cells. c. It is responsible for telomere shortening. d. It may slow the aging process. e. It is highly expressed in cancer cells
Heterochromatin is associated with
A) differential gene expression. B) gene silencing. C) mRNA translation. D) heterozygotes. E) A, B, and C only