The prime factor that drives coral bleaching is ____
a. fungal infection
b. water levels changing
c. salinity levels changing
d. light levels changing
e. temperature changes
ANSWER: e
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After rigorous statistical analyses have shown a very low likelihood (usually 5% or less) of a result having occurred by
chance alone, the result is said to be ____.
a. quantitatively probable b. probably random c. statistically significant d. due to sampling error e. statistically probable
In somatic cell division, a cell undergoes a nuclear division called ____, and a division of its cytoplasm called _____.
a) the cell cycle / cytokinesis b) meiosis / mitosis c) mitosis / cytokinesis d) prophase / cytokinesis e) mitosis / telophase
Think back to the several examples your text presents of the ideas of spontaneous generation that persisted for thousands of years. Why do you think this idea was so appealing for so long?
Even after the experiments of Francesco Redi, why did the new technology of microscopy help the theory to maintain credibility until Darwin's time? What will be an ideal response?
The gene that codes for the number of fingers on the human hand has two alleles—five fingers and six fingers. The letters F and f are used to represent this trait. Having five fingers is the recessive trait. A woman has six fingers, but one of her parents has five fingers. She marries a man who has five fingers. What is the probability that they will have a child who is homozygous dominant for this trait?
a. 0 percent b. 25 percent c. 50 percent d. 100 percent