Why are small populations more affected by genetic drift than larger ones?
What will be an ideal response?
In a small population, if one individual produces fewer or more than the average number of offspring or more offspring with one of the alleles, this is proportionally a larger difference than if the same thing happened in a large population. For example, in a stable population of 10, if one homozygote does not contribute alleles to the next generation, that is a 5 percent change in allele frequencies. If, however, the population size was 1000, that would only be a 0.05 percent change in allele frequency.
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Chlorosis is a condition that results yellowed plant tissues
a. True b. False
Why does the relationship between metabolic rate and temperature exist?
A) Cellular respiration requires organisms to take in heat energy. B) A by-product of cellular respiration is heat. C) Cellular respiration causes the body to cool because all the energy is used to make ATP.
Paramecia use cilia for locomotion and for gathering organic matter. How are rotifers similar?
A. Rotifers and ciliates are thought to have given rise to all other animal phyla. B. The corona is made of cilia, and used for swimming and feeding. C. Rotifers are single-celled protists. D. Both lack a gut.
Activation of B lymphocytes produces (antibody-mediated /cell-mediated/innate) immune responses.
Fill in the blank(s) with the appropriate word(s).