If you found a species of plant consisting of widely separated small populations, what might you expect?
A. low genetic diversity
B. bottleneck effects
C. increased likelihood of extinction
D. genetic isolation among subpopulations
E. All of the answer choices are correct.
E. All of the answer choices are correct.
You might also like to view...
As a child grows, the lungs increase in size as well. Hypothesize what the pressure of the gases within the lungs would be if the lung volume of an individual goes from 3000ml to 4000ml.
A. gas pressure would decrease B. gas pressure would increase C. gas pressure would be unchanged
Evolutionary biologists often use the 16S rRNA gene sequences of prokaryotes to determine genealogical relationships between them. Because these sequences are highly conserved, differences between them are notable and useful for this kind of analysis. While sequencing bacterial endosymbionts from various plants in 1992, results showed that some of these bacteria displayed a lot of similarity in their rRNA sequences, others less, and others very little similarity. The scientists determined that the most likely explanation was that those with the most similarity shared a more recent common ancestor than those with less similarity. Which principle did the scientists use to arrive at this conclusion?
a. conductive reasoning b. natural selection c. maximum parsimony d. proteomics
Use of antibiotics in animal feed leads to antibiotic-resistant bacteria because
A) bacteria from other animals replace those killed by the antibiotics. B) the few surviving bacteria that are affected by the antibiotics develop immunity to the antibiotics, which they pass on to their progeny. C) the antibiotics cause new mutations to occur in the surviving bacteria, which results in resistance to antibiotics. D) the antibiotics kill susceptible bacteria, but the few that are naturally resistant live and reproduce, and their progeny repopulate the host animal. E) the antibiotics persist in soil and water.
Edema is a result of increased interstitial fluid in various tissues of the body. All of the following are causes of edema EXCEPT
A. injury to a limb. B. liver disease. C. abnormally low blood pressure. D. pregnancy. E. protein malnutrition.