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Biology II 25
Biology II
| Question | Answer |
|---|---|
| How old is Earth? | 4.5 Billion years old |
| Geological and Chemical Proccsses: | 1. Synthesis of small molecules 2. Joining of small molecules into macromolecules 3.packing of macromolecules into protocell 4. Origin of self replicating molecules formed inheritence |
| What was the first genetic material? | RNA |
| What did Earth's early atmosphere compose of? | water vapor, nitrogen, ammonia, methane |
| Who is Stanly Miller? And what year? | 1953-created a simulator of Earth's atmosphere |
| What did the 2008 team do? | Explored volcanic conditions of early Earth, found nearly all amino acids |
| What did the 2009 team do? | Dripping solutions of amino acids on hot clay, catalyzed reactions. |
| What two mechanisms does life require? | Reproduction and Energy |
| Precambrian | 4.5 billion-550 million years ago |
| What happened in the Precambrian? | 1st prokaryotes 1st photosynthesis 1st Eukaryotes 1st individual cells living in colonies became specialized 1st invertebrates |
| How old is Earth? | 4.5 Billion years old |
| What created oxygen on Earth? | photosynthesis |
| Geological and Chemical Proccsses: | 1. Synthesis of small molecules 2. Joining of small molecules into macromolecules 3.packing of macromolecules into protocell 4. Origin of self replicating molecules formed inheritence |
| What was the first genetic material? | RNA |
| What did Earth's early atmosphere compose of? | water vapor, nitrogen, ammonia, methane |
| What did Eukaryotes share with prokaryotes? | genetics |
| Who is Stanly Miller? And what year? | 1953-created a simulator of Earth's atmosphere |
| Paleozoic | 250-550 million years ago |
| What did the 2008 team do? | Explored volcanic conditions of early Earth, found nearly all amino acids |
| What happened in the Paleozoic? | 'Cambrian Explosion'- rapid speciation of insects, fish, and tetrapods. Plants, fungi, and aminals colonized land |
| What did the 2009 team do? | Dripping solutions of amino acids on hot clay, catalyzed reactions. |
| Mesozoic | 65-250 million years ago |
| What two mechanisms does life require? | Reproduction and Energy |
| Precambrian | 4.5 billion-550 million years ago |
| What happened in the Precambrian? | 1st prokaryotes 1st photosynthesis 1st Eukaryotes 1st individual cells living in colonies became specialized 1st invertebrates |
| What created oxygen on Earth? | photosynthesis |
| What are Eukaryotes? | first membrane bound organelles |
| Rise of Eukaryotes | 2.1 Billion years ago |
| What did Eukaryotes share with prokaryotes? | genetics |
| Endosymbiont Theory | Mitochondria and other organelles were formerly small prokaryotes that began living in larger cells |
| Paleozoic | 250-550 million years ago |
| How many different major extinction events are there? | 5 |
| What do extinctions provide opportunities for? | macroevolution, a diversity of life b/c of empty niches |
| What happened in the Paleozoic? | 'Cambrian Explosion'- rapid speciation of insects, fish, and tetrapods. Plants, fungi, and aminals colonized land |
| Mesozoic | 65-250 million years ago |
| What happened in the Mesozoic? | Rise of reptiles (dinosaurs) Meteor causes the end |
| Cenozoic | 0-65 million years ago |
| What happened in the Cenozoic? | Rise of mammals (smaller animals) |
| Rise of Eukaryotes | 2.1 Billion years ago |
| Endosymbiont Theory | Mitochondria and other organelles were formerly small prokaryotes that began living in larger cells |
| Rise of Multicellularity | 1.5 Billion years ago groups of different cells coming together forming a colony, the different parts within the colony are carrying out specialized jobs. |
| How many different major extinction events are there? | 5 |
| What do extinctions provide opportunities for? | macroevolution, a diversity of life b/c of empty niches |
| what is Continental Drift? | Enironmental alteration on earth. Earth's crust is a series of plates that 'float' on the mantle. |
Created by:
dpwafle0122
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