Front

What is bioaccumulation?

Back

Bioaccumulation is the process by which organisms accumulate toxins in their bodies over time, leading to higher concentrations than those found in the environment.

Front

How does the concentration of toxins change in bioaccumulation?

Back

In bioaccumulation, the concentration of toxins increases in the body of the organism.

Front

What is biomagnification?

Back

Biomagnification is the process where the concentration of toxins increases as you move up the food chain.

Front

True or False: Biomagnification occurs in a food chain.

Back

TRUE

Front

What is DDT?

Back

DDT is an insecticide that was widely used to control pests but is now known to be harmful to the environment.

Front

Which level of the food chain is most affected by biomagnification?

Back

The tertiary consumer is mostly affected by biomagnification.

Front

How does the concentration of toxins change along the food chain in biomagnification?

Back

In biomagnification, the amount of toxin increases along the food chain.

Front

What is an algal bloom?

Back

An algal bloom is a rapid increase in the population of algae in water bodies, often due to excess nutrients.

Front

What causes algal blooms?

Back

Algal blooms are often caused by nutrient pollution, particularly from fertilizers and sewage.

Front

What are the effects of algal blooms on aquatic ecosystems?

Back

Algal blooms can deplete oxygen in the water, block sunlight, and produce toxins harmful to aquatic life.