Essential, when referencing amino acids, means we can’t make them so we must get them.

Identify the organelle labeled as number 3.

If an enzyme becomes too hot, it is ______.

Vitamins are a macronutrient.

Does facilitated diffusion require energy?

Enzyme activity is independent of the environment in which they function.

Do plant cells have cell walls?

Nutrients allow?

Which is an element of life?

When a hypothesis has been repeatedly supported over a long period of time, what does it become?