Molecules can cross cell membranes from areas of low concentration to areas of high concentration by binding with carrier proteins and ATP. What is this process called?

A. Osmosis

B. Endocytosis

C. Facilitated Diffusion

D. Active Transport

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

What is the difference between how ionic and covalent bonds form

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them