What are the two main types of digestive systems? (list the parts) 20 !

Complete the possible outcomes for each generation in the pedigree chartaa aa aa

Everything in the universe originated from a single point. how was it possible for everything in the universe to have occupied a single point in space?

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time