Question

some resort owners plan to develop a new sanitary landfill site. four possible types of landfills are shown below. the resort is located in a forested area and is near a lake. a design engineer has stressed that caution will need to be exercised if the resorts solid wastes are disposed of in a sanitary landfill site.

in an ecosystem, poisons tend to be most concentrated in organisms that are
a. primary food sources
b. secondary food sources
c. low on the food chain
d. high on the food chain

Explanation:

This question is about the concept of biomagnification in ecosystems. Biomagnification refers to the process where the concentration of toxins increases as we move up the food chain. Organisms high on the food chain (top predators) consume many organisms from lower trophic levels, accumulating more toxins. Primary food sources (producers or primary consumers) and those low on the food chain have lower toxin concentrations. Secondary food sources are in the middle, but the highest concentration is in top - level (high on food chain) organisms.

Answer:

D. high on the food chain