Question

limiting factors for questions 1 - 6, write true if the statement is true. if the statement is false, change the underlined word to make the statement true. pages 130 through 135 in textbook. false 1. limiting factors determine the immigration capacity of a population. 2. a limiting factor controls the growth of a population. 3. limiting factors operate when growth is exponential. 4. populations grow too large in the absence of limiting factors. 5. competition is an example of a limiting factor. 6. population size can be limited by factors such as predation density - dependent limiting factors 7. what is a density - dependent limiting factor? limiting factors that operate more strongly when population density is high 8. when do density - dependent factors operate most strongly? 9. what are four density - dependent limiting factors?

Explanation:

1. Limiting factors determine the carrying capacity, not immigration capacity. Carrying capacity is the maximum number of individuals an environment can support.
2. True. Limiting factors such as food availability, space, etc., control population growth.
3. Limiting factors operate when growth is logistic, not exponential. In exponential growth, there are no limiting - factors yet.
4. True. Without limiting factors like predators, disease, and resource scarcity, populations can grow very large.
5. True. Competition for resources among individuals in a population is a limiting factor.
6. True. Predation reduces the number of individuals in a population, thus limiting population size.
7. A density - dependent limiting factor is a factor that has a greater impact on a population as population density increases, such as competition, predation, disease, and parasitism.
8. Density - dependent factors operate most strongly when population density is high, as there is more competition for resources, higher rates of predation, and easier spread of disease.
9. Four density - dependent limiting factors are competition, predation, disease, and parasitism.

Answer:

1. False, carrying
2. True
3. False, logistic
4. True
5. True
6. True
7. Limiting factors that operate more strongly when population density is high
8. When population density is high
9. Competition, predation, disease, parasitism