How did DDT affect natural systems?

A. It tampered with the way different species behaved in nature, causing predatory issues.
B. It's a toxic chemical, but in small doses, it can be beneficial to wildlife, causing it to flourish.
C. It went into the soil and caused decay, leading to the extinction of several plants.
D. It was shown to cause cancer, alter the DNA of living things, and have detrimental effects on many species, especially birds.

Question

14-07-2024
Biology

Answered

How did DDT affect natural systems?

A. It tampered with the way different species behaved in nature, causing predatory issues.
B. It's a toxic chemical, but in small doses, it can be beneficial to wildlife, causing it to flourish.
C. It went into the soil and caused decay, leading to the extinction of several plants.
D. It was shown to cause cancer, alter the DNA of living things, and have detrimental effects on many species, especially birds.

Answer :

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GinnyAnswer GinnyAnswer · Answer 1 · 2024-07-14T01:08:36-04:00

Final answer:

DDT's impact on natural systems, especially bird populations, through biomagnification and bioaccumulation caused reproductive issues and population declines.

Explanation:

Biomagnification and bioaccumulation of DDT had devastating effects on natural systems, particularly on bird populations at the top of the food chain like eagles and pelicans. DDT caused thinning of eggshells in birds, leading to reproductive issues and population declines. After DDT was banned in the US in 1972, affected bird populations, including the iconic bald eagle, showed signs of recovery.

Learn more about Effects of DDT on bird populations here:

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