Bio-Jan_10th

Bio-Jan_10th - • There are three domains used for...

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INTRODUCTORY TO BIOLOGY Biosphere: all environments on earth that support life Ecosystem: all organisms living in an area, as well as non-living areas where organisms interact (air, soil, water, sunlight) Community: all organisms found in an ecosystem (all species found) Population: all individuals of a species Organism: an individual living thing Organ System->organ->tissue->cell->organelle->molecule Chemical nutirients recycle within an ecosystem, whereas energy flows through an ecosystem Prokaryotes are smaller and much simpler than eukaryotes DNA: genes, transmit information from parents to offspring
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Unformatted text preview: • There are three domains used for grouping Bacteria ArcheaEukarya Prokaryote Prokaryote Eukaryote Many live in extreme environments Supports many aquatic or moist habitats • Darwin came up with the idea of natural selection (only the strong survive) • Two approaches to learning about nature: Discovery science: describing nature uses inductive reasoning (general principle made from observations) Hypothesis bases science: explaining nature, test predictions, uses deductive reasoning (if all organisms are made of cells and humans are organisms then humans are composed of cells...
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This note was uploaded on 12/21/2011 for the course BIO 202 taught by Professor Brooks during the Fall '11 term at UCSB.

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