Ozone is located in the upper atmosphere and shields the earth from harmful ultraviolet light rays from the sun, which cause skin cancers. What is the chemical formula of ozone? A) O2 B) O3 Eliminate C) NO3 D) NO2

What is the name of the sugar found in DNA nucleotides? A. phosphate B. ribose C. deoxyribose D. adenine

Stem and root reproduction in plants examples

What direction, in regards to concentration, does diffusion move particles across the membrane?

What is the effect of loss of red blood cells

N the 1700s, Isaac Newton determined that the force of gravity between two objects depends on the mass of the objects and distance between them. He reasoned that things fall toward Earth because it has so much mass.

Which statement best describes the overall change that occurs as a result of mitosis?

When people plant vegetation they what? erosion

What is a polypeptide?

Sound cannot travel though a what?

Where do clams come from