What layer of atmosphere reflects radio waves

Water is essential to all living things. one important attribute of water allows it to maintain a constant environment within cells. which property of water allows it to do this?

A slecies of ivy invades the beetles current habitat and becomes the domonant form of vegetation. The color of ivys leaves is similar to the beetles average color.

Mendel crossed a pure wrinkled seeded plant with a round seeded one. All the offspring were round seeded. Which trait is dominant?

The scientific method can best be described as a plan of a set of

Coral reefs that are preserved as sedimentary rocks are classified as

Bones, joints, ligaments, and cartilage are parts of the a) refrigerator b) muscles c) skeleton

Chloroplasts cannot move on their own. How do they move around the cell?

What causes leaves to dry out

And increase in food and a decrease in predators would most likely

Which would provide the body with the most energy? a. Carrying oxygen from the lungs to the cells b. Breaking the bonds in a disaccharide c. Breaking a single carbon bond d. Creating bonds to make a simple sugar