Mutualism, commensalism, and parasitism are the three types of a. symbiotic relationships b. predation c. competition d. prey adaptations

Answer : The right answer is -

a. Symbiotic relationships.

Symbiotic relationship can be described as a long term, close biological association between two organisms, which belong to same or different species.

There are primarily three types of symbiotic relationships that are-

1) Mutualism- When both the interacting organisms are benefited.

2) Commensalism- When one organism gets benefit while other is neither benefited nor harmed.

3) Parasitism - When one organism is benefited (Parasite) and the other organism is harmed (host).

Thus, option a) is the right answer.

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.