Answer :

aryajbond

Answer:

10,000

Explanation:

because:

1 marsh plant= 1 DDT

a minnow = 100 DDT

if 1 minnow = 100 DDT

100 marsh plants = 100 DDT

you multiply 100 by 100

You get 10,000 as the answer.

marianaegarciaperedo

Bioaccumulation is the accumulation of persistent substances, many times toxic substances, in the organisms' tissues. In the exposed example, if the minnow eats 100 plants, it will get 100 units of DDT.

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This problem states that

  • a farmer sprays DDT in a field.
  • DDT reaches the marsh plants by the wind action
  • Each plant receives 1  unit of DDT, which remains in the plant by bioacumulation.

When talking about bioaccumulation we refer to a net accumulation of metals and other persistent substances in the tissues of an organism.  

Accumulation occurs during the individual's life and can be transmitted to other organisms in the trophic chain.

There are two ways in which an organism can get these substances,

  • from other living beings (trophic chain)  
  • by direct consumption from the soil, air, and water.

So, according to the introduction, each plant has one unit of DDT.

              1 marsh plant -------------- 1 unit of DDT

We need to find out how much DDT gets one single minnow that eats 100 marsh plants in one year.

So here, we can just perform a three simple rule.

  • If one plant has 1 DDT units, how many units DDT are in 100 plants??
  • If one minnow eats 100 plants in a year, how many DDT units does it get?

1 marsh plant -------------- 1 unit of DDT

100 marsh plants ---------X = 100 units of DDT

If the minnow eats one plant, it will get one unit. But if the minnow eats 100 plants, it will get 100 units of DDT.

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You can learn more about bioaccumulation at

https://brainly.com/question/21195062?referrer=searchResults

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