When scientists copy DNA, they first have to cut out the part they want to

copy. What molecule do they use to do this?

O

A. Reverse transcriptase A

B. Gel electrophoresis

O

C. DNA polymerase

O

D. Restriction endonuclease

Name an animal that both directly and indirectly benefits humans.

Elephants shape their environment in many ways. They can change a forest to a grassy field or dig a hole that might become a pond.

What is the function of odorant-binding proteins in the mucus?

Which statement is an example of a scientific theory? A. The Earth is the third planet from the Sun and has one moon, which orbits the Earth. B. Hummingbirds do not like the color white because they visit other colored flowers more often. C.

How does the wind transport sediment particles

Why can flowers rapidly germinate?

What is the water cycle driven by?

Which is not a way plants try to limit undesirable pollinators

Explain why malaria is still a problem even when we know of ways to control it.

Scientists have said that people that are showing no symptoms can still spread the coronavirus for several days. Knowing what you know now, how would you attempt to explain that to someone?