Density dependence in population growth

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Reference no: EM133935203

Questions

1. Density dependence in population growth is due to competition for resources, disease, predation, or other factors that increase in intensity when the population size is high. At high density, survivorship and fecundity ________.

Group of answer choices

-Follow a logistic curve

-Increase

-Decrease

-Plateau

2. What is the correct interpretation of the graph on the right-hand side of the figure above?

-There is a strong interaction between genotype and environment, but it is highly variable between genotypes.

-All 3 genotypes are phenotypically plastic with a similar pattern for the relationship between environment and phenotypic shifts.

-None of the 3 genotypes are phenotypically plastic.

-Not enough information to interpret this figure.

3. In some circumstances, the use of probiotics, which stimulate the rapid growth of bacteria that are mutualistic or commensal with humans, can eliminate the need to use antibiotics, which can wipe out helpful bacteria along with harmful bacteria. The use of probiotics is an example of which process?

-competitive exclusion

-niche differentiation

-parasitism

-succession

Reference no: EM133935203

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