Biology I3 Quiz

A scientific theory is accepted as a scientific __________________, supported by evidence collected by many scientists

• truth

• hypothesis

• study

• opinion

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To become a theory, what must a hypothesis go through? (check all that apply)

• It has to be tested over and over again

• It must be supported by a great deal of evidence.

• It has be written as an "if -then" statement

• It must be tested by an expert scientist with a doctorate.

A scientific theory is more like a fact than a guess because it is so ________________

• well known.

• well supported.

• obvious to all that see it.

• big of an idea.

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Which of these are well known theories in biology? (check all that apply)

• The Theory of Species

• The Theory of Evolution

• Cell Theory

• Germ Theory

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____________________ is a change in the characteristics of living things over time.

• Evolution

• Cell Theory

• Germ Theory

• none of these

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What causes evolution to occur?

• Pathogenic Theory

• Cell Theory

• Natural Selection

• it is currently unknown

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According to the cell theory which of these are true? (Check all that apply)

• the cell is the smallest unit of structure and function of all living organisms

• all living organisms are made up of millions of cells

• living cells always come from other living cells

• all cells have a nucleus that controls the reactions inside the cell

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This scientific theory proposes that microorganisms are the cause of many diseases

• Cell Theory

• The Theory of Evolution

• Germ Theory

• none of these

Which of these statements is true about the theory of evolution, cell theory and germ theory?

• Lots of evidence has been identified that proves this theories are incorrect.

• All of these theories have been known for over a thousand years

• One hypothesis has been used for all three theories.

• No evidence has been identified that proves this theories are incorrect.

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This theory explains how living things are changing today and how modern living things have descended from ancient life forms that no longer exist on Earth.

• cell theory

• germ theory

• gene theory

• none of these

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