Which of the organic molecule listed below serves the following functions in the body? - long term energy storage - form cell membrane lipids protein nucleic acid carbohydrate

How are the tortoises that darwin observed on the galápagos islands similar to the anoles that losos studied

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.