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Discuss (30 seconds) Why does shivering warm you up? A moth’s wing are homologous to a a. b. c. d. Bat’s wing Butterfly’s wing Human forearm Homogenized milk (2%) A moth’s wings are analogous to a. b. c. d. e. Bat’s wing Butterfly’s wing Human forearm 2 are correct All of the above are correct • The evolutionary significance of homologous structures is a. The closer in structure, the closer their common ancestor b. Coevolution occurs more often in homologous structures c. Sympatric and Allopatric isolation can create homologies • What do plant and animal cells share in common? a. b. c. d. e. f. Cell wall Mitochondria Ribosomes Chloroplasts 2 are correct 3 are correct • What type of cell did all your cells start off as? a. b. c. d. Parenchyma Stem Cells Gametes Cellery • Mitosis is the process for making new somatic cells True or False • The epithelial cells of your big toe are genetically identical the zygote you came from many years ago. True or False • Epithelial cells form the first line of defense against bacteria. True or False • What muscle type pushes food through your intestines? a. Skeletal b. Cardiac c. Smooth