Question

(03.03 mc)
kendis eats predator fish that feed on small oysters in a river ecosystem. the river has become polluted with moderate levels of heavy metals, which are absorbed by the oysters. what is the most likely effect of this pollutant on kendis if he keeps eating the predator fish?
o nothing will happen to kendis because the oysters are small.
o nothing will happen to kendis because heavy metals breakdown quickly.
o kendis will get sick because the pollutants will biomagnify.
o kendis will get sick because oysters are considered fat-soluble substances.
question 4
2 pts
(03.03 lc)
persistent organic pollutants (pops) should constantly be monitored because they can bioaccumulate in the tissues of organisms.
o true
o false

Explanation:

• For the first question:
• Biomagnification is the process where pollutants (like heavy metals) increase in concentration as they move up the food chain. Oysters absorb heavy metals, predator fish eat oysters (concentrating the metals), and Kendis eating the predator fish would have a high - level of these pollutants (so he would get sick). Heavy metals do not break down quickly, and the size of oysters is not relevant to the pollutant effect. Oysters are not fat - soluble substances in this context.
• For the second question:
• Persistent organic pollutants (POPs) are known to bioaccumulate (build up in the tissues of organisms over time). This is a well - established environmental science concept.

Answer:

• First question: Kendis will get sick because the pollutants will biomagnify.
• Second question: True