In the figure above, which species is the stronger competitor?
A) species 1
B) species 2
C) Both species compete equally.
D) It is not possible to tell from this figure.
Answer: A
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Purine bases, such as adenine and guanine, have ________ joined ring(s) for their structure, compared to pyrimidine bases, such as cytosine and thymine, that have ________ ring(s) in their structure.
Fill in the blank(s) with the appropriate word(s).
What would be the consequence if an individual was homozygous for an IBP that could not bind iron but could bind to the IRE?
A. Unregulated transferrin receptor levels B. Increased degradation of ferritin C. Possible iron toxicity to the cells at levels of iron that would not normally be toxic to a cell D. There would be no predicted consequence to iron metabolism in the cell
Heritability refers to
A) the genetic contribution to a phenotype in a population at a particular time. B) the genetic contribution to the variability of a phenotype in a population at a particular time. C) the number of genes contributing to a trait in a population. D) the degree to which offspring resemble parents.
Alarm calling seems to be an example of ________, that is, it favors relatives.
A. sociology B. aggression C. demography D. kin selection