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Page 5 #'s 20-23 20. The diagram below illustrates the process of cell division Q:What is significance of anaphase in this process? A:1) anaphase usually ensures that each daughter cell has the same number of chromosomes as the parent cell. most student would probably get this wrong because many would think the answer is 3)in anaphase the cell splits in half, also many would not read the diagram correctly; how you can see in the diagram that in anaphase the cell is not completely splitting and how the DNA molecules are splitting i half with the same number of DNA molecules on each side. students should keep in mind that the cell does'nt split until telophase and each cell using this process comes out equal. in the textbook chapter 8, section 2, pages 206-209

21.Q:which process is represented by the arrow in the diagram below? A:2) respiration many students may chose answer 3) regulation, and get this wrong thinking it the organism does this to maintain its internal balance and also how the diagram states that energy is the food but does'nt tell how organisms acquires the food. Students should keep in mind that as son as they see the word energy to think respiration. chapter 9, section 3, page 231 22.Q: in the diagram below, which substance belongs in area z? A:4)carbon many students would get this wrong because this is from the beginning of the year and think the answer is 2)oxygen because all living things need oxygen to survive. students should remember that in order to be considered organic you must have carbon and hydrogen. chapter 6, section 3, page 157

23.Q: in an envoiornment that undergoes frequent change, species that reproduce sexually may have an advantage over species that reproduce asexually because the sexually reproducing species produce A:3)offspring with more variety people may get this question wrong because they may have not known the difference between asexual and sexual reproduction and also the question starts with telling something about an environment that is changing. students should remember that with sexual reproduction each offspring is different and adapted to the environment. chapter 8, section 8.2, pages 203-210