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1. How are the following interrelated?
a. fecundity and mortality
b. age at first reproduction and survivial
c. size of eggs or offspring and clutch size
d. parental care and clutch size

2. What are characteristics of populations using exponential (r)and logistic (k) reproductive strategies?

3. What are population cycles? How are limiting factors, negativefeedback, and population size interrelated?

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Patrina Schowalter
Patrina SchowalterLv2
29 Sep 2019

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Populations (Ecology)

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Factors whose impact on a population increases as population size increases are known as: a. Limiting factors b. Life-history factors c. Distribution factors d. Density-dependent factors 7. Deer mice are a species with individuals who live short lives and grow up rapidly. They have many, small offspring to which they give little parental care. This life-history strategy describes: a. r-selected species b. K-selected species 8. Which type of species is more likely to have its population size remain close to carrying capacity under normal conditions, rather than going through boom and bust cycles? a. density-dependent species b. r-species c. K-species d. prey species 9. In top-down regulation, the size of a rabbit population is determined by: a. The number of foxes and coyotes in the area b. The severity of winter c. The amount of food found in their habitat d. The biotic potential of female rabbits 10. In the Yellowstone ecosystem, what regulates the size of the elk populations? a. Bottom-up regulation factors b. Top-down regulation factors c. In some cases it is bottom-up and in other cases it is top-down regulation. d. Neither one have a significant impact on elk population size.

Question :Mutations that cause sickness and/or death after reproduction has occurred:

Question 1

options: can be passed on to future generations.

will not be passed on to future generations. are unlikely to occur.

are only passed on to future generations in species that have short life spans.

Question 2

In a population exhibiting logistic growth, what happens when the carrying capacity is exceeded?

Question 2 options:

The growth rate becomes zero until the population is back within the carrying capacity.

The growth rate becomes negative until the population is back within the carrying capacity.

The population crashes and becomes extinct.

The population's fertility drops to zero.

Question 3 How does exponential growth differ from logistic growth?

Question 3 options:

Logistic growth models take the population's age structure into account.

Long-term exponential growth is more commonly observed than long-term logistic growth in nature.

The logistic model of growth incorporates environmental limitations on population size.

Logistic growth generally comes with infinite expansion.

Question 4 Density-dependent and density-independent growth factors influence the size of a population by causing changes in the:

Question 4 options:

death rate and pattern of dispersion.

birth rate and death rate.

age structure and birth rate.

carrying capacity and age structure.

Question 5 The life history of an organism does not include the organism's

Question 5 options:

reproduction

All of these are included in an organism's life history.

death

birth

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