The four most common elements in living organisms are

When a plant cell in normal water is moved into a 20% salt solution, the cytoplasm and vacuole of the plant cell shrink. the reason for this change is:?

Why is it important to compare your data from a lab with that of your classmates?

What is the relationship between a base and a basic solution?

What are the living things in an ecosystem called?//?

When two or more substances are so evenly mixed that you can't see the different parts.?

Which organisms are prokaryotes a. Archaea b. Fungi c. Protist d. Plants

A population of lizards that originally had no predators lived on a small isolated island. Predators of the lizards were accidently introduced to the island from a visiting ship.

If there are 50 kcal of energy in the tertiary consumer trophic level, how many kcal would you expect to find in the primary consumer level

The plasma membranes of some plant cells use transport proteins to move protons out of the cell against their concentration gradient (from areas of low proton concentration to areas of high proton concentration). this is an example of:

What is algae? and where is come from?