What would cause antibodies to attack the cells of the body?

People who exercise for an hour may have lower cholesterol levels. is that a statement? a law? or a hypothesis?

Which units ate used to measure both velocity and speed? check all that apply

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