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9th grade biology EOC review Study Guide Solutions

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9th grade biology EOC review Study Guide Solutions independent variable - ANSWER-a condition that is manipulated or changed in a scientific experiment. (X-Axis) dependent variable - ANSWER-a condition whose change depends on the manipulation of the independent variable. (Y-Axis) qualitative d...

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  • November 10, 2024
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9th grade biology EOC review Study Guide

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independent variable - ANSWER✔✔-a condition that is manipulated or changed in a scientific

experiment. (X-Axis)


dependent variable - ANSWER✔✔-a condition whose change depends on the manipulation of the

independent variable. (Y-Axis)


qualitative data - ANSWER✔✔-descriptions of a phenomenon which include sights, sounds, and smells.


quantitative data - ANSWER✔✔-characteristics which can be measured or counted such as mass,

volume, and temperature.


scientific method - ANSWER✔✔-1. Observe


2. Form a hypothesis


3. Test the hypothesis


4. Analyze the data


5. Form a conclusion


expiremental - ANSWER✔✔-receives the variable being tested.


constants - ANSWER✔✔-the conditions which do not change during an experiment.




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control group - ANSWER✔✔-does not include the independent variable and is compared to the

experimental group. (ex: blood medication- control= how often and how the medication is taken,

experimental= dosage of meds)


hypothesis - ANSWER✔✔-a proposed answer for a scientific question.


theory - ANSWER✔✔-a proposed explanation for a wide range of observations and experimental results

which are supported by a wide range of evidence.


significance of the control group in an experiment - ANSWER✔✔-Used to study the effects of the

independent variable.


biodiversity - ANSWER✔✔-The variety of living things in an ecosystem.


how is biodiversity measured - ANSWER✔✔-measured by the number of organisms near the equator.

(Depends on moisture and temperature)


keystone species - ANSWER✔✔-a species which has an unusually large effect on its ecosystem. (ex:

beavers and bees)


If populations of an indicator species a (keystone) are increasing, then - ANSWER✔✔-the ecosystem is

very healthy.


Autotrophs - ANSWER✔✔-are producers, meaning that they have the ability to produce their own food

and get their energy from non-living things.


heterotrophs - ANSWER✔✔-are consumers, meaning that they get their energy by eating other once

living or currently living organism.




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