How do magnetic stripes of iron in ocean rock provide evidence of seafloor spreading? They show when Earth's poles reversed.
They show how the density of the seafloor has changed.
They reveal a matching pattern on either side of the ridge.
They reveal differences in the mineral composition of newly created rock.

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