The purpose of a mordant in the Gram stain is to The purpose of a mordant in the Gram stain is to make the flagella visible. make gram-negative cells visible. make the bacterial cells larger. prevent the crystal violet from leaving the cells. remove the simple stain.

If animal agriculture was eliminated, how much grain would become available for human consumption?

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

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.