In the nitrogen cycle, the bacteria that replenish the atmosphere with N2 are

Nutrients that our bodies need in small amounts are called

What is the difference between RNA and DNA what does RNA stand for ex: DNA stands for Deoxyribonucleic acid.

What Blood type is considered to be the universal acceptor

How is a bacteroid distinguished from a bacterial cell?

What interesting fact about human genes allows humans to be so much more complex than something like a fruit fly

The largest amount of DNA in a plant cell is found in?

Which type of selection tends to increase genetic variation?

Nature selects traits that make a species more successful in its environment. true or false

Which type of stem cell is described below? stem cells are available from a variety of sources, including blood from an umbilical cord, or cells in the placenta, the bone marrow, and even human fat.

What does elements do carbohydrates contain