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Definition
| All env. of earth inhabited by life |
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Definition
| All living things in a particular area; with all non-living components |
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Definition
| All organisms in a particular ecosystem |
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Definition
| All ind. of a species licing within a specific area |
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| Example of cycling of nutrients through an ecosystem |
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Definition
| Minerals acquired by plants will eventually be returned to the soil |
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Term
| Flow of E. in an ecosystem |
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Definition
| Sunlight --> producers --> consumers |
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Definition
| Plants/ other photosynthetic organisms that convert light E. to chem. E. |
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Definition
| Organisms that feed on producers/ other consumers |
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Term
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Definition
| Smallest level of organization that can perform all activites required of life |
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Term
| Substance present in chromosomes |
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Definition
| Deoxyribonucleic Acid/ DNA |
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Definition
| Units for inheritance that transmits info from parents to offspring |
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Definition
| Made of 2 long chains arranged into a double helix; each link of a chain is one of 4 nucleotides |
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| Common trait among all life forms |
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Definition
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Definition
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| Number of nucleotides in a genome |
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Definition
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| Similarities btw all cells (2) |
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Definition
1. Enclosed by membrane that regulates the passage of materials btw cells and surroundings
2. Uses DNA as genetic code |
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Term
| Eukaryotic cell charateristics (2) |
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Definition
1. Subdivided by internal membranes
2. Organelles (besides nucleus) located in cytoplasm |
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Term
| Prokaryotic cell characteristics (2) |
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Definition
1. No membrane-bound organelles
2. No membrane-bound nucleus |
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Term
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Definition
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Term
| Emergent prop. of systems |
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Definition
| Moving up in the hierarchy of bio. order, novel prop. emerge that were not present at the levels below |
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Term
| Example of emergent prop. |
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Definition
| Thought and memories are emergent prop. of nerve cells |
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Term
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Definition
| Reducing complex systems to simpler components that make studying more manageable |
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Term
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Definition
| To model the dynamic behavior of whole bio. systems |
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Term
| Research developments in systems bio. (3) |
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Definition
1. High through-put tech.
2. Bioinformatics
3. Interdisciplinary research teams |
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Term
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Definition
| Analyzes large volumes of data |
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Term
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Definition
| extracts the useful bio. info from large data sets |
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Term
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Definition
| Accumulation of an end product of a process that slows that process |
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Term
| Example of negative feedback (2 steps) |
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Definition
1. Cell's breakdown of sugar generates chem. E. in the form of ATP
2. The excess accumulation of ATP then inhibits an enzyme near the beginning of the pathway |
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Term
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Definition
| End product speeds up production |
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Term
| Example of positive feedback (2 steps) |
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Definition
1. When blood vessels are damaged, platelets are called to the site of injury
2. Platelets the release chem substances that attract more platelets and clotting action speeds up |
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Term
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Definition
| Branch of bio. that names and classifies species |
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Term
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Definition
1. Bacteria
2. Archaea
3. Eukarya |
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Term
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Definition
| Most diverse and widespread prokaryotes |
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Term
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Definition
| Live in extreme env. like salty lakes or extreme temp. |
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Term
| On the Origin of Species by Natural Selection by Charles Darwin (2) |
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Definition
1. Presented evidence to support view that contemporary species arose froma procession of ancestors
2. Wanted to propose a mechanism for descent with modification (natural selection) |
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Term
| Inference Darwin made when he observed ind. variation and overproduction and competition (2) |
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Definition
1. Unequal reproductive success
2. Evolutionary adaptations |
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Term
| Example of natural selection (4 steps) |
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Definition
1. Pop. with varied inherited traits (light/dark beetles)
2. Elimination of ind. with certain traits (light coloring)
3. Reproduction of survivors (dark beetles)
4. Increasing frequency of certain traits enhance survival and reproductive success (dark beetles) |
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Term
| Discriptive/ Discovery science |
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Definition
| describes natural structures and processes through careful observation and analysis of data |
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Definition
| Deriving generalizations based on a large number of specific observations |
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Definition
| Tentative answer to a well-framed question |
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| Qualifications of a hypothesis (2) |
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Definition
1. Falsifiable
2. Testable |
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Term
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Definition
| Where an experimental group is compared with control group |
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Term
| Qualities of a scientific theory (3) |
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Definition
1. Broader in scope than a hypothesis
2. General enough to spin off new, more specific hypotheses to be tested
3. Generally supported by massive amt. of evidence |
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