What is a risk of using chemical pesticides on crops?
A
chemical contamination of streams and rivers

B
rotating crop production

C
genetic mutation of existing crops

D
attracting more insects to the harvest-able product

Which of the following is used to describe an animal's characteristics that increase the animal's chances of survival and reproductive success in a specified environment?
A
inheritance of acquired characteristics

B
convergent evolution

C
phyletic gradualism

D
adaptation

a. chemical contamination of streams ans rivers

d. adaptation

dopamine..

"it was found that some people who were taking the drug l-dopa to raise their levels of dopamine were developing schizophrenic-like symptoms supporting research a strength of the dopamine hypothesis is that there are many studies which have shown support for the neurochemical explanation."

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.