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BIOACCUMULATION, BIOMAGNIFICATION, ALGAL BLOOM

Total questions: 10

Worksheet time: 4mins

Name
Class
Date
1.

HAB means

a)

Happy Algal Bloom

b)

Harmful Algal Bloom

c)

Hazardous Algae Biome

2.

Like plants, algae

a)

have roots and stems

b)

can photosynthesize

c)

have green leaves

3.

Increase in temperature stimulates algae to make toxins.

a)

TRUE

b)

FALSE

4.

Too much Nitrogen and Phosphorus causes algae to make toxins.

a)

TRUE

b)

FALSE

5.

Biomagnification happens in a food chain.

a)

TRUE

b)

FALSE

6.

When DDT toxin builds up in the body of an organism, this is called BIOMAGNIFICATION.

a)

TRUE

b)

FALSE

7.

Which organism is mostly affected in biomagnification in the following?

a)

the producer

b)

the primary consumer

c)

the secondary consumer

d)

the tertiary consumer

8.

DDT is

a)

an insecticide

b)

a plant vitamin

c)

food for insects

9.

In biomagnification, the amount of toxin

a)

decreases in concentration along the food chain

b)

remains the same along the food chain

c)

increases along the food chain

10.

In bioaccumulation, the concentration of toxin

a)

increases in the body of the organism.

b)

decreases in the body of the organism.

c)

remains the same in the body of the organism.