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10 Cards in this Set
- Front
- Back
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When did the first life forms emerge on Earth, and what were they?
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3.5 billion years ago, and were single-celled organisms.
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What is Biology?
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The study of life
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What are the six major themes of biology?
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Cell structure and function, homeostasis, reproduction and inheritance, evolution, interdependence, and matter, energy and oragnization
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What characteristics do all living things share?
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Cells, organization, energy use, homeostasis, growth, reproduction
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What steps are in a basic scientific method?
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Observing a problem
Asking a question Collecting Data Hypothesizing Experimenting Drawing Conclusions |
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What falls under 'Collecting Data'?
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Observing
Measuring Sampling Oragnizing data |
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What is a microscope?
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An instrument that produces an enlarged image of an object
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How is a Compound Light Microscope used?
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Thinly sliced objects are placed on a glass slide and light passes through the object.
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How do you calculate magnification?
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Power of ocular lens times power of objective lens.
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What does an electron microscope use to view specimens?
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Electrons
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