Certain colors can fool our visual perception. Stare at the black dot until your eye receptors are fatigued. Then stare at the white square with your eyes unfocused. This concept is called

Explain how organisms could be harmed by high levels of salt from roadways?

1. -define adaptation2 explain darwin's theories of descent with modification and natural selection in detail3. -explain how each of these provides evidence for evolution: a. -fossil record, including superposition and transitional fossilsb-anatomy, including homologous structuresc-biological molecules, including dna and proteins4. -explain the difference between convergent and divergent evolution.5. -define and give three examples of artificial selection6. -define and give one example of coevolution.7. -explain biodiversity and how it benefits humans.8. -explain a type of population lest affected by environmental change.

How many pounds does the earth weigh?