Question

1. which population growth model takes into account the carrying capacity of an environment? a. logistic growth b. exponential growth c. geometric growth d. arithmetic growth 2. which of the following best describes the role of biogeochemical cycles in the environment? a. they involve the movement of essential elements and compounds through living organisms, the environment, and geological b. they are processes that only occur in oceans c. they are solely responsible for weather patterns d. they only affect terrestrial ecosystems 3. which of the following population characteristics would be most useful in determining whether an area is overcrowded? a. birth rate b. size c. death rate d. density

Explanation:

1. Logistic growth model has an upper - limit (carrying capacity) due to environmental constraints. Exponential and geometric growth assume unlimited resources and arithmetic growth is a simple linear increase not related to carrying capacity.
2. Biogeochemical cycles involve the movement of essential elements like carbon, nitrogen, etc. through living organisms, the environment, and geological processes across various habitats, not just oceans, not solely responsible for weather, and affect both terrestrial and aquatic ecosystems.
3. Population density (number of individuals per unit area) is the best measure to determine over - crowding as it takes into account both the number of individuals and the space available. Birth rate, size, and death rate alone do not directly indicate over - crowding.

Answer:

1. a. Logistic growth
2. a. They involve the movement of essential elements and compounds through living organisms, the environment, and geological processes
3. d. Density