There is a strong positive correlation between rising atmospheric CO2 concentrations and ________
Fill in the blank(s) with correct word
global temperature
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Cytotoxic T cells primarily are responsible for
A. humoral immunity. B. cell-mediated immunity. C. anamnestic immunity. D. producing haptens.
Blue flower color (B allele) is dominant to white (b allele). If a population of plants in Hardy-Weinberg equilibrium contains white flowers (bb) at a frequency of 0.04, what is the frequency of the blue flower allele (B)?
A. 0.2 or 20% B. 0.64 or 64% C. 0.32 or 32% D. 0.8 or 80% E. 0.96 or 96%
A population of rabbits increases exponentially until their environment has reached its carrying capacity. Which of the following best describes the cause?
a. Part of the population of rabbits have evolved into a new species that can no longer reproduce with the original species of rabbits. b. The rabbits have become infertile. c. The resources necessary to keep all the rabbits alive have run out. d. The population of rabbits have moved to a new habitat.
The type of reproductive isolation in which two populations are separated due to the sperm cells of one not being able to fertilize the egg cells of the other is
A. ecological isolation. B. hybrid infertility. C. gametic isolation. D. hybrid inviability. E. temporal isolation.