Question

fill in the blank. fill in the blank with the correct words.

1. the number of individuals of the same species living in a certain area is called a
2. when the birth rate is higher than the death rate, a population will grow
3. carrying capacity is the maximum number of individuals an environment can support without harming it.
4. when individuals move into a population from another area, it is called immigration
5. a sudden, rapid decrease in a population due to disease is an example of a density - dependent factor.

word bank: carrying capacity, grow, population, immigration, density - dependent
multiple choice questions. choose the correct answer from the choices for each question

1. which factor does not directly increase a population size? a) births b) immigration c) emigration d) none of the above
2. what happens when a population exceeds its carrying capacity? a) the population will continue to grow indefinitely b) the environment may become damaged, causing the population to decrease c) the birth rate will instantly drop to zero d) all individuals will die
3. which of the following is an example of a density - dependent factor? a) natural disasters b) food availability c) temperature d) sunlight
4. what term describes the movement of individuals out of a population? a) immigration b) migration c) emigration d) colonization
5. what is the primary effect of habitat destruction on animal populations? a) increases genetic diversity b) increases population size c) decreases available resources d) causes more births

open - ended questions: answer the following questions in complete sentences

Explanation:

1. Births and immigration add individuals to a population, while emigration removes them.
2. Carrying capacity is the maximum population size an environment can support. When exceeded, the environment may degrade and population may decline.
3. Density - dependent factors are influenced by population density. Food availability is affected by how many individuals are in a population.
4. Emigration is the movement of individuals out of a population.
5. Habitat destruction reduces the living space and resources for animals, decreasing available resources.

Answer:

1. c) Emigration
2. b) The environment may become damaged, causing the population to decrease
3. b) Food availability
4. c) Emigration
5. c) Decreases available resources