A biologist is studying the population dynamics of pocket gophers in a meadow in central Oregon. She noted that, when population numbers are high, death rates from disease and starvation increase. This is an example of:
A) r-selected growth. B) the principle of intrinsic rate of growth.
C) density dependent control. D) exponential growth.
Answer: C
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Stomatal closure is passive because ______________
A. K+ and Cl- diffuse from high to low concentration B. water diffuses from low to high concentration C. ATP is required D. it conserves leaf hydration
What is the allele frequency of q in a population with genotypic frequencies of P = 0.3, H = 0.4, and Q = 0.3?
A) 0.3 B) 0.5 C) 0.6 D) 0.9
In liver cells, each NADH produced via glycolysis results in two ATP molecules in the electron transport chain
__________________ Indicate whether the statement is true or false.
Several years ago, scientists compared the genome of a wooly mammoth to that of an African elephant and found them to be 98.5% identical. This is an example of what type of "-omics"?
A) space-age genomics B) stone-age genomics C) extinctomics D) exomics E) proteomics