Why do cells need to use transport proteins to function? a. transport proteins surround the nucleus for protection. b. transport proteins prevent the cells from dissolving. c. carbohydrates cannot pass directly through the cell membrane. d. nonpolar molecules cannot pass through the cell membrane.

Drag each characteristic or feature to the correct location on the diagram sort the features and characteristics by the groups they are found in. a.spinal cord b.metamorphosis c.scales d.lungs in adults e.ectothermic f.external fertilization g.gills in adults h.amniotic eggs 1.fish 2.fish and amphibians 3.amphibians 4.fish and reptiles 5.fish, reptiles and amphibians 6.amphibians and reptiles 7.reptiles