How does the effect of a sudden drop in predator population compare to the effect of a sudden drop in prey population?
a. A sudden drop in predator population results in an increase in prey population,while a sudden drop in the prey population results in a sudden drop in thepredator population
b. A sudden drop in the predator population results in a corresponding drop in theprey population, while a sudden drop in the prey population results in a suddendrop in the predator population.
c. A sudden drop in the predator population does not affect prey populationnumbers, but a sudden drop in the prey population will result in a sudden drop inthe predator population.
d. A sudden drop in the predator population results in a corresponding suddenincrease in the prey population, but a sudden drop in the prey population doesnot affect the predator population.
a
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Which of the following is not an essential component of the eukaryotic elongation stage of translation?
A. magnesium ion B. eIF3 C. GTP D. aminoacyl-tRNAs
What does ionizing radiation cause in DNA?
a. faster replication b. the formation of nucleotide dimers c. kinks in the DNA molecule d. breaks in the DNA molecule e. base pair mismatching
Synaptonemal complex forms during
A) leptonema. B) zygonema. C) pachynema. D) diplonema. E) diakinesis.
Which of the following explains the fact that there are a variety of proteins found in the cell membrane which affect the immune system?
(A) Our immune system recognizes proteins within the cell membrane that are calle "self-proteins" that enables the cells of the immune system to recognize the organism's own cells and not destroy them (B) Those proteins assist the immune system in destroying pathogens such as bacteria and viruses. They use the process of phagocytosis to kill viruses and bacteria. (C) Those proteins decide if the cell is part of the immune system. If the cell is not part of the immune system, then the proteins will engulf the cell. (D) Our immune system recognizes proteins within the cell membrane that are called "immune proteins" that enables the cells of the immune system to recognize the organism's own cells and not destroy them.