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12 Cards in this Set
- Front
- Back
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Describe biogeochemical cycles?
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Law of conservation of matter and energy
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Biogeochemical cycles are maintained due to what law?
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matter and energy
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The energy stored by the organisms in a particular trophic level is what percent of that stored by those in the level below it?
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10 %
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What is the difference between a carnivore and an herbivore? Be able to give examples of each
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Bob cat , coyote, snake , herbies are rabbit, deer , cow
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• Define the term half-life-
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how long it takes for half of the isotope to decay
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What was the first living thing on Earth?
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Prokaryote like cyanobacteria
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• Current evidence supports that idea that eukaryotes evolved from what types of organisms?
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Prokaryotes through the process of endosymbiosis
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Name the organelles that are believed to be symbiotic eubacteria.
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Mitochondria
- Chloroplast |
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Gradualism
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slow steady change in the fossil record
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Punctuated equilibrium
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long periods of no change followed by periods of rapid species formation
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• Did Darwin discover evolution?
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no
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What was Darwin’s main contribution to the idea of evolution?
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Discovered a mechanism to explain HOW species could change overtime
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