Review1BIO115Winter2011

Review1BIO115Winter2011 - BIO115 MidtermReview...

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BIO115 Midterm Review Jessica Pamment
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Overview Biology today Basic chemistry Molecules of life The cell Energy and life Respiration
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Order Evolutionary adaptation Response to the environment Reproduction Growth and development Energy processing Regulation The Characteristics of life
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Levels of Biological Organization Levels of Biological Organization 1. The biosphere 3. Communities 4. Populations 5. Organisms 2. Ecosystems 6. Organs and organ systems 8. Cells 9. Organelles Atoms 7. Tissues 50 µm 10. Molecules
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Biology’s Unifying Theme EVOLUTION EVOLUTION  is descent with modification/ change in   is descent with modification/ change in  inherited traits over time inherited traits over time The central idea of evolution is that all life on earth shares a The central idea of evolution is that all life on earth shares a common ancestor common ancestor Darwin suggested Natural Selection as a mechanism of  Darwin suggested Natural Selection as a mechanism of  evolution evolution      If you have variation, differential reproduction, and  heredity, you will have evolution by natural selection as  an outcome
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Types of Scientific Inquiry Discovery science: describes nature Hypothesis-driven: explains nature Most scientific studies combine both  approaches
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Science Verifiable observations are prerequisites A hypothesis is a statement of the scientist’s  educated guess at the answer to the question he  started off with A hypothesis is usable only if you can carry out  experiments to prove it false You can’t prove a hypothesis true
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Science A theory is much broader in scope than a  hypothesis Theories tie together a number of observations  that previously seemed unrelated It is theories that advance science
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Which of the following statements best  describes the nature of a scientific hypothesis? a. An idea that is widely accepted as a  description of objective reality  b. It must stand alone and not be based on prior  knowledge c. It is a tentative explanation that can be tested  through experimentation d. When accepted, a hypothesis becomes  scientific law
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Which of the following is true of all scientific  claims?(select all that apply) a. They are capable of negation through further  scientific inquiry b. They can be negated by expert opinion c. They are natural explanations for either natural  or supernatural phenomena d. They are regarded as provisional pending on  the addition of new evidence
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Ch.2 Essential Chemistry Atomic structure Formation of bonds Water and its unusual properties
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Atomic Structure Subatomic particles: neutrons, electrons, and protons Subatomic particles: neutrons, electrons, and protons
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This note was uploaded on 04/26/2011 for the course BIO 115 taught by Professor Pamment during the Winter '11 term at DePaul.

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Review1BIO115Winter2011 - BIO115 MidtermReview...

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