Which of the following is the best example of circadian rhythm? High altitudes increase the amount of red blood cells produced in the body.
Lab mice kept in constant darkness show a daily pattern of behavior.
Large cats, like lions and tigers, sleep more than 18 hours a day.
Some birds can sense changes in Earth's magnetic field.

Works together in the synthesis, modification, packaging, and transport of lipids and proteins

In the water cycle , when does water undergo a chemical change

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.