BIOL 1398 Lecture Notes - Lecture 5: Endoplasmic Reticulum, Nuclear Membrane, Stromatolite
1 Apr 2019
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25. 3 key events in life"s history: geologic record is a standard time scale that divides earth"s history into four eons . Hadean, archaean, and proterozoic (together about 4 billion years), and the. Phanerozoic eon (half a billion: each era = distinct in earth"s history. They fed on algae: within 10 million years, predators with claws and other features appeared. The colonization of land: larger forms of life; fungi, plants, and animals, venture out of aquatic environment, plants colonized land with fungi, even today, roots and fungi work together. Fungi aid in the absorption of water and minerals from soil: first animals = arthropods (insects and spiders, tetrapod"s (humans) come later. 28. 1 most eukaryotes are single-celled organisms: eukaryotes have a well-developed cytoskeleton. This helps them grow and change shape over time: organisms in most eukaryotic lineages are protists, most protists are unicellular. Structural and functional diversity in protists: protists exhibit more structural and functional diversity than eukaryotes, most protists are unicellular.
