Question

1. when individual trees of the same species compete for sunlight, water, and nutrients, this is an example of: a. predation b. intraspecific competition c. parasitism d. interspecific competition 17. what is a crucial function performed by ecosystems? a. pollution control b. habitat destruction c. resource depletion d. energy pollution 18. what is one consequence of air pollution? a. increased biodiversity b. soil erosion c. respiratory problems d. water purification

Explanation:

1. Intraspecific competition occurs when members of the same species compete for resources like sunlight, water, and nutrients. Predation is one - organism consuming another, parasitism is a relationship where one organism benefits at the expense of another, and interspecific competition is between different species.
2. Ecosystems can help with pollution control through processes like filtration and absorption. Habitat destruction, resource depletion, and energy pollution are negative impacts rather than functions of ecosystems.
3. Air pollution can cause respiratory problems as harmful particles and gases are inhaled. It generally decreases biodiversity, soil erosion is more related to land - use changes, and water purification is not a consequence of air pollution.

Answer:

1. b. Intraspecific competition
2. a. Pollution control
3. c. Respiratory problems