Why do you usually need more than one hypothesis for a question?

The concentration of calcium inside a cell is 0.3%. the concentration of calcium outside the cell is 0.1%. how could the cell transport even more calcium to the inside?

Which mutation is of a single nucleotide? A. Tay Sachs B. Sickle cell disease C. Both D. Neither

Which of the following is the best description of conduction? A. the process of changing from a gas to a liquid or from a liquid to a gas B. the emission of energy in the form of rays or waves that can travel through empty space C.

The gram stain divides microorganisms into 2 groups on the basis of differences in the

Why is DNA organized in the form of a chromosome?

Which of the following statements about carotenoids is NOT true? Carotenoids include red, orange, and yellow pigments. Carotenoids are sometimes referred to as accessory pigments. Beta carotene is the most abundant carotene in plants.

It is important to inspect tina's mouth thoroughly because oral cancers are most commonly found:

Most metals are in the liquid state at room temperature. is this true or false

What does the word organism mean

What variable means factors in an experiment that remain the same