BIO 1130 Lecture Notes - Lecture 5: Monera, Archean, Protist
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BIO 1130 Full Course Notes
Verified Note
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Document Summary
1. 3 billion years of the history of the planet. We have a sense of what was around at the end of the achaean era because we have fossils from that time. Linnaeus had only plants and animals as his kingdoms, because he had no microscope to find the protista and thought that fungi were just non photosynthetic plants. Either in the kingdom plantae, kingdom fungi, or kingdom animalia. Plants are distinguished from the other 2 kingdoms by photosynthesis. Plants are autotrophs: they get their energy to build food from sunlight. Fungi are absorptive heterotrophs, and animals are ingestive heterotrophs: fungi take large biopolymers (starch, carbohydrates, cellulose) and digest them to the monomers outside their body, and then they absorb the monomers. You can use these characteristics to organize the animal world: presence of nucleus, multicellular or unicellular, heterotroph or autotroph, ingestive or absorptive. Problem: only in the 50"s and 60"s we get to the point where we understand bacteria.
