What happens in the stomach?

A. Salivary amylase breaks down the food.

B. Waste material is expelled from the body.

C. Water and nutrients are absorbed.

D. Large proteins are broken into smaller proteins.

About 225 million years ago, North America and South American were part of one huge landmass, Pangaea.

Select all the correct answers. According to Newton's law of universal gravitation, which statements are true? As we move to higher altitudes, the force of gravity on us decreases. As we move to higher altitudes, the force of gravity on us increases.

Explain how the response of diatom populations to a drop in nutrient availability

After translation, what would the amino acid sequence be for this section of mRNA?

How much DNA is found in a cell's nucleus?

Using directional references for a person in anatomical position, how would you describe the relationship of the hand compared to the elbow? To the groin

In an appropriately designed experiment, a scientist is able to test the effect of: A) a single variable B) multiple variables C) the hypothesis D) scientific observations

Which answer is not a mechanism for evolution1. Mutations 2. Natural Selections3. Genetic Drift 4. Gene Pool?

In addition to fossil evidence for evolution, other lines of evidence can include:

Why do arteries have more muscle and elastic tissue than veins?