Controls are necessary in scientific experiments because they

Protist that is found in warmer seawaters and is the source of an economically important substance, Agar, which is used to make drug capsules, cosmetics and bacteria culture medium.

All the chemical reactions that take place within your body are known as

Hydroxyl (OH-), a cluster of atoms with a specific pattern that always behaves in a certain way, is a(n)

Those traits not found in the common ancestor of a taxonomic group are _____traits.

Bacteria normally reproduce

The chloroplasts have stacks of thylakoids called

The person responsible for giving us our modern hierarchical system of classification is

A substance which releases more positive H + ions when it dissociates in water is called

A (n) _______ reaction releases energy.