All cells need energy to perform various processes and to make molecules that are necessary to sustain their lives. From where do cells primarily get this energy?

food

heat

water

mitosis

What is the characteristic of a cell membrane that controls which substances can enter and exit the cell? A.) osmosis B.) selective permeability C.) diffusion D.) concentration gradient

Why is it commonly believed that carbon dioxide is responsible for global warming? Give at least 2 reasons.

What is the enzyme - substrate complex?

Why rejszjfrkbejbgr hrjbgbdhg hbgdf

How many planets do we have

Instinct is a changing, biologically inherited behavior pattern. T or F?

In which section of the nephron does the filtrate have a higher osmolarity than the blood when it enters and lower osmolarity than the blood when it leaves?

A population is best represented by

Carolyn suffers from the excessive secretion of insulin in the bloodstream. the medical term for this condition is

Some biological hazards (such as bacteria, viruses, parasites, and fungi) are undetectable by sight, smell or taste and can potentially cause an illness. What are these biological hazards called?