During the winter of 1999, minimum temperatures did not get much below freezing in an Oregon pond, and the following summer, large mosquito populations were observed. In the winter of 2000, frost came early and most ponds were frozen for 3 months
The following summer, very small mosquito populations were observed. This is an example of
A) density-dependent regulation.
B) density-independent regulation.
C) ecosystem carrying capacity.
D) community carrying capacity.
E) exotic regulation.
B
You might also like to view...
Explain why annotation is an important step in genomic sequencing projects, in the context of the percentage of the human genome composed of coding regions
What will be an ideal response?
Suppose that the first part of a new polypeptide chain being produced in a eukaryotic cell does not
have a signal peptide. Which of the following would you associate with the location of translation to form that polypeptide?
a. cytoplasm only b. first cytoplasm, then rough ER c. Golgi apparatus only d. first rough ER, then Golgi apparatus e. rough ER only
Dietary fiber that is not digested will be:
a. egested. b. ingested. c. emulsified. d. hydrolysed. e. absorbed.
Pituitary dwarfism is caused by:
a. hypersecretion of thyroxine during childhood. b. hyposecretion of thyroxine during childhood. c. hypersecretion of growth hormone during childhood. d. hyposecretion of growth hormone during childhood. e. hypersecretion of epinephrine during childhood.