How does ATP act as a supplier of energy to power metabolic reactions? What is the immediate source of energy used to reform ATP from ADP molecules?

Red blood cells do not contain mitochondria. how do red blood cells generate most of their atp?

The great-great maternal grandmother of a boy was a carrier for colour-blindness, an X-linked disorder. His great uncle on his mother's side was colourblind but his great uncle's father was unaffected.

In a biology class, one student argues that tissues are the building blocks of organs. Another student argues that cells are the building blocks of organs. Which student do you agree with? Support your position with scientific facts.

Do mutations occur because the organism needs a new trait?

A galaxy is likely to be a collection of which of the following?

Is the cell wall or cell membrane composed of two layers of lipids and proteins?

What kind of cells is an amoeba?

What happens when you get scared "Half to death twice"?

Atoms of different elements combine to form

How does mRNA differ from DNA? a. mRNA contains ribose sugars; DNA contains deoxyribose sugars. b. mRNA contains the base uracil; DNA contains the base thymine. c. mRNA is single-stranded; DNA is double-stranded. d. All of the above are correct.