Carolus Linnaeus is considered to be the founder of __________, and he __________.
a. paleontology; believed in catastrophism
b. uniformitarianism; believed the same geologic forces are operating today that occurred in the past
c. the binomial classification system; thought that resemblances among different species reflected the pattern of their creation
d. genetics; described the mechanism for descent with modification
e. evolution; first proposed that acquired characteristics are inherited
Answer: c. the binomial classification system; thought that resemblances among different species reflected the pattern of their creation
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What features would enable a doctor to distinguish conclusively between the proliferative and secretory phases of the uterine cycle?
_____ the ratio of estradiol to progesterone _____ ratio of FSH to LH _____ thickened endometrium _____ presence of endometrial glands _____ loss of the endometrium
A scientist is investigating a hormone response in rose bush stems by removing the apical meristems of the main stems. What is the most likely result of this experiment and what hormone is responsible?
A. Flowers will turn yellow and fall off under the influence of auxin. B. Lateral buds will develop under the influence of cytokinin. C. New apical buds will develop under the influence of auxin. D. More leaf buds will appear along the main stems under the influence of auxin. E. Larger, deeper roots will form under the influence of cytokinin.
Why do the centromeres of sister chromatids stay firmly connected during anaphase I?
a) The proteins of the centromere region are impervious to lipase digestion. b) The cohesin situated at the centromeres is digested by nucleolytic enzymes. c) The DNA of the centromeres is hydrolyzed by proteolytic enzymes. d) They are fused together at the level of their double helices. e) The cohesin situated at the centromeres is protected from proteolytic attack.
The use of a proxy variable changes how you must interpret which of the following statistics?
A. P-value of coefficient on treatment B. Standard errors on treatment C. R-squared D. None of the answers is correct.