Biology, 04.10.2020 08:01 hartmat

I NEED HELP, PLEASE Watch this video first:
Chapter 1 | Rachel Carson | American Experience | PBS

1. What is Rachel Carson warning us about in chapter 1?

2. Why was she so concerned about DDT? What are the negative consequences of DDT usage?

3. Why do you think that the scientific community rejected her at first?

4. Carson states that “humbleness” is required when we begin to work with nature. What do you think she means? How can we have humbleness toward nature?

5. One problem with DDT is biomagnification. When an animal on the top of the food chain eats a lot of animals on the lower trophic levels, they are more greatly effected with the negative consequences because of the larger quantity of DDT in their systems. What problems did DDT cause in fish and birds due to biomagnification?

6. Do you think our current microplastics conundrum is similar to the problems that Carson stated about DDT? Why or why not?

7. The video suggests that the plastics problem is not so easy to solve. Explain why.

Answers: 1

Show answers

Another question on Biology

Biology, 21.06.2019 14:30

Which one of these is a involving in both sexual and asexual reproduction

Answers: 2

Answer

Biology, 21.06.2019 22:40

In what layer of the sun is energy transfers between atoms

Answers: 1

Answer

Biology, 22.06.2019 06:10

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed

Answers: 2

Answer

Biology, 22.06.2019 07:00

Give an example of a trait that is controlled by more than one gene.

Answers: 1

Answer

You know the right answer?

I NEED HELP, PLEASE Watch this video first:
Chapter 1 | Rachel Carson | American Experience |...

Questions