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Cards In This Set
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Define Biology
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The scientific study of living things.
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List and describe the 7 characteristics something must have to be considered alive.
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Cells, DNA, Reproduction, Evolution, Metabolism, Regulation(homeostasis), Interaction.
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Where do organisms obtain energy and what 3 types of work do they do with it? Give Examples.
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Organisms obtain energy from the Sun and Chemicals that contain energy(sugar). The 3 types are: Mechanical-move molecules/cells/organisms.
Chemical-convert one molecule (nutrient) to another. Electrical- nerve impulse |
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Discuss whether the things such as viruses, seeds, and parasites are living things.
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Viruses have cells but need a host to survive.
Seeds have cells but they stay dormant for years. Parasites have cells but need hosts to survive. |
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List the 11 levels of biological organization in order from atoms to biosphere. Give examples of each.
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Atoms- smallest unit (Carbon)
Molecules- strains of atoms (DNA) Cells- built of molecules (neuron's in living organisms) Tissue- a group of many cells with similar and coordinated functions like sensing odor (neural tissue) Organs- Combine several tissues that function together(Brain) Systems- Organs form (Nervous System) Organism- self contained individual (Fish) Population- group of many organisms of the same species( School of fish) Communities- Populations of many different species (Coral Reef). Ecosystems- Communities in the same geographical location (South) Biosphere- ecosystem's exchange energy (earth's atmosphere). |
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List the 8 levels of classifications of organisms in order from Domain to Species.
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Domain- Largest
Kingdom Phylum Class Order Family Genus Species-Smallest |
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How are organisms classified into Domains, Kingdoms, Species, etc?
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Shared common Ancestry.
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Follow the rules to write or recognize the proper form of a species binomial name.
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Genus & species name
~Genus is capitalized, species isn't both are italicized ~Genus can stand alone species can't ~Genus can be abbreviated with 1st initial first us of the binomial Example: Homo sapien Escherichia coli...... E. coli |
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List the 3 domains of life.
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Bacteria, Archaea, Eukarya.
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List the 4 Eukaryotic Kingdoms.
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Plant, animal, fungus, protists.
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Explain the difference between a fact, law, hypothesis, and theory. Give examples of each.
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Fact- a single verifiable observation
Ex: a book that is dropped falls to the ground. Law- generalization that describes recurring facts or events in nature. Does not require that the mechanism be known. Ex. Law of Gravity: all objects that are dropped fall to the ground. Hypothesis- tentative explanation of a scientific phenomenon Ex: Pandas are more closely related to grizzly bears than to raccoons, because they share more heritable characteristics. Theory- Unifying concept that explains a natural phenomenon and has been thoroughly tested and supported by extensive experiments and many scientists. Ex: Theory of Eolution: Natural Selection causes new species to branch from existing ones. |
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How certain are scientist that a scientific theory is correct?
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There is no more certain term for a scientific explanation. If they were uncertain it would be called a hypothesis.
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Distinguish between scientific and nonscientific explanations
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Scientific Explanations have:
~To be able to test it. ~Scientific hypotheses can be rejected |
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Discuss practical application in Biology.
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Medical advancement, environmental influence, find solutions to problems, to grow and succeed in society and in life.
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