As trees go into dormancy, it's leaves change color.

What causes this change in color?

A.) the tree make extra chlorophyll

B.) the tree stops making chlorophyll

C.) the tree produces extra hormones

D.) the tree stops producing hormones

What happens after a streams discharge decreases?

In the boxes, write the number of crickets you would test to make this a controlled experiment

A forest ecosystem located in the northeastern United States currently contains 35 black bears. The ecosystem contains enough energy to support 42 black bears, enough water to support 54 black bears, and enough minerals to support 64 black bears.

Which celestial body would have the strongest gravitational pull on a satellite orbiting 100 km above its surface? Explain your answer

1. Which of the following items would not be included on a dental laboratory prescription?

A lab technician observes a unicellular organism with two long flagella and two nuclei in the blood smear of a person. To which phylum does this protozoan belong? A. Zooflagellata B. Ciliata C. Sarcodina

Which is an example of a chemical defense in your skin? growing long hair shredding dead skin sweating palms developing calluses

Why is DNA ligase so Important in recombinant DNA technology

What is the diffrence of pulmanary artery and pulmanary veins?

Do scientists Know what is causing El Niño?