What’s a disadvantage of the point count method of population monitoring? a. it leads to the death of the sampled individuals. b. it only records trends in population at fixed locations in the ecosystem. c. it requires traversing through the ecosystem, which may be difficult in rugged terrain. d. it’s only useful for monitoring organisms that are fixed in one place. e. it requires capturing the animal for a brief period of time.

it only records trends in population at fixed locations in the ecosystem.

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.

preservation because he preserves part of the land and preserves means save

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