How much of the weight of a cell is water

Chains of enzyme that break down or build molecules are called

Why is the black hole asymmetric?

Which statement describes a shield volcano

What is true about liquid water? A. Ice has a higher density then liquid water because it has less space between molecules B. Ice has a lower density then liquid water because it has more space between molecules C.

Marissa is adding numbers in her head. Which part of her brain is she using?

Why does photosynthesis require water? a. because water provides oxygen atoms. b. because water provides electrons. c. because water accepts electrons. d. because water acts as a catalyst.

An education guess or rational explanation about a specific phenomenon

What are the technical name for red blood cells white blood cells and platelets?

What are the resources of the ocean

Which organism actively hunts other