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Fossils almost never contain DNA. So how can we know how closely or distantly related fossil organsims are to living organisms

In a certain plant, rough seeds (R) are dominant and smooth seeds (r) are recessive. Two plants with genotype Rr are crossed, and their offspring has smooth seeds. What is the genotype of their offspring?

Using what you have learned about carbon bonds and energy in this lesson what can you say about the amount of carbon bonds in this food component compared to the amount of carbon bonds in the other two food components? Why?

Materials are included in the hydrosphere that are not in liquid form

Which adds evidence to the idea that cells are the basic units of life? A. Cells contain ribosomes and have a cell membrane. B. It is impossible for a multicellular organism to survive. C. Many organisms in the world are made of only one cell. D.

When your body sweats, which process is at work to cool your body off?

Which of the following is an example quantitative data

Darwin argued that the beak size and shape of Galapagos finch species was related to their a. body size. b. food source. c. time of reproduction. d. flight pattern.

Which organism could be classified as a fungus

Which of the following must be true of a population in genetic equilibrium? A. Migration between populations B. Small population size C. Random mating D. Sexual selection