Which of the following best describes the lipid bilayer present in the plasma membrane? Phospholipids in double layer with heads of both layers meeting in middle
Phospholipids in single layer with heads facing outside the cell
Phospholipids in single layer with heads facing inside the cell
Phospholipids in double layer with tails facing each other and heads on both the inside and outside of the cell

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.