Bioaccumulation vs Biomagnification

What is bioaccumulation?

• The increase in toxin concentration as it moves up the food chain

• The buildup of toxins within a single organism over time

• The process by which organisms eliminate toxins from their bodies

• The exchange of toxins between different ecosystems

How does biomagnification differ from bioaccumulation?

• Biomagnification only occurs in plants

• Biomagnification refers to toxins being diluted in each trophic level

• Biomagnification is the increase in toxin concentration as it moves up the food chain

• Biomagnification involves the decrease of toxins in organisms over time

Which of the following is an example of biomagnification?

• Small fish accumulating mercury over time

• Higher mercury levels found in top predators like sharks

• Decrease in mercury levels in each trophic level

• Fish avoiding mercury by living in clean water

What is a potential impact of bioaccumulation on human health?

• Increased nutrient levels in food

• Decreased biodiversity in ecosystems

• Risk of neurological damage from consuming contaminated fish

• Improvement in the food chain’s energy flow

Why is it important to prevent toxins from entering ecosystems?

• To promote faster food chain turnover

• To reduce the biodiversity of ecosystems

• To prevent toxic build-up in food chains, which impacts human and wildlife health

• To allow toxins to naturally break down in organisms