The explanation of how eukaryotic cells came about is
A. the theory of spontaneous generation.
B. the endosymbiotic theory.
C. Oparin and Haldane's hypothesis.
D. the theory of biogenesis.
B. the endosymbiotic theory.
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Your father has type B blood, and your mother has type O blood. You learn that you also have blood type O. What
does this tell you?
a. You father is homozygous for type B blood. b. Your mother is heterozygous for type O blood. c. Your father's genotype is IBi and your mother's genotype is ii. d. Your father's genotype is IBIB and your mother's genotype is ii. e. Your father's genotype is IAIB and your mother's genotype is ii.
Compared to modern humans, Neanderthals were ____
a. skinnier b. shorter c. more numerous d. more widely dispersed e. small brained
The fewest number of individuals necessary to ensure the long term survival of a population is known as the
A) carrying capacity. B) resource population. C) lowest common denominator. D) minimum viable population.
Which of the following is NOT a reason why growth rates in nature are slower than those in the lab?
a. Microbes in nature grow in mixed populations. b. Nutrient transport rates are slower in the environment. c. Distribution of nutrients throughout habitat is not uniform. d. Resources are frequently suboptimal.