Matching on the line provided, match the time segment with the appropriate organism or event. 1. Precambrian Time a. Animals with shells and outer 2. Paleozoic Era skeletons evolve. 3. Cambrian Period b. Animals begin to invade the land. c. Flowering plants appear. 4. Ordovician and Silurian Periods d. Unicellular life evolves. 5. Devonian Period e. Mammals evolve adaptations for 6. Carboniferous and Permian Periods life on land, sea, and in the air. 7. Mesozoic Era f. Jawless fishes and first land 8. Cenozoic Era plants appear. g. Many types of marine life evolve. h. Vast swampy forests flourish and winged insects evolve.