Where do consumers get their energy from?
a. from the water
b. from the sun
c. from other organisms
d. from the air

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