Your friend Chris is interested in studying rats. He usually feeds them seeds, which is their normal diet. Sometimes when they are very good eats, he gives them cheese as a treat. He notices that his best-behaved rats are also very fat. How can he prove that the cheese treats are the cause of this weight gain?

Illustrate, label, and explain how atmospheric carbon and oxygen find there way into a consumer and then back into a producer. include the following terms in your illustration: co2, 02, respiration, photosynthesis, sugar, mitochondria, chloroplast, water, solar radiation

Where can dna be found in a prokaryotic cell

Sort the examples by the type of diversity that they exhibit a park has 80 species of trees red, yellow, and orange bell peppers are all members of the same species individuals of the same lizard species have different mating strategies. five different bird species are at a bird feeder. genetic diversity species diversity