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34 Cards in this Set
- Front
- Back
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What is Biology? |
The study of Life |
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What does Bios mean? |
Life |
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What does a biologist study? |
Interactions of life and the environment. Problems facing the environment and propose ways to fix them. |
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How do you know if something is alive? (Characteristics of life) |
-Can reproduce -Has cells -based on genetic code -grow and develop -responds to stimuli - uses energy -needs food -Can adapt and evolve
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Ingestion |
Take in food (plants use photosynthesis) |
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digestion |
Breaks down food into simpler substances |
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Respiration |
Take in oxygen to combine with food for energy |
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Excretion |
The process in which organisms rid of substances |
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Metabolism |
The ability to break down or build up materials |
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What is an organism? |
Anything that possesses all of the 8 characteristics of life |
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What is a species? |
A group of similar organisms that can bread and produce. Ex)Mule is not a species because it can't reproduce |
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What common goal do all scientists share? |
To investigate the natural world, to explain events in the natural world, and to use those events explanations to make useful predictions. |
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Scientific knowledge includes many things... |
-historic(knowledge of past scientists) -public(published in media) -tentative(always changing) -replicable(capable of repeating results) -probablistic(problem solving w/ the scientific method) |
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What is the Scientific Method |
An organised way for gathering organising and communicating information. |
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Scientific Method step #1;
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Identify the problem: A scientist will wonder or why something works, then they propose a question to whatever they're curious about or state the problem |
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Scientific Method step #2; research the information |
research the information: The scientist will must gather information about the topic of his or her curiosity. |
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Scientific Method step #3; |
Form/construct a hypothesis: An educated guess or prediction of the outcome of the outcome of the experiment |
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Scientific Method step #4; |
Conduct an experiment: An organised process to test the hypothesis |
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What is a constant? |
The factors that don't change in an experiment |
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Observations are made using... |
ALL five senses |
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.Data is collected from.. |
the observations made |
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What is an inference? |
An assumption or interpretation based on prior knowledge or experience |
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Experimental Group? |
Group that is altered or changed |
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Control group? |
Group that is not changed or altered. Used as a standard for comparison; the most normal...remember: Placebo effect |
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Variable? |
The one thing that the scientist changes. 2 types |
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Manipulated/independent |
The variable that causes change in the other. What you are investigating. Graphed on the x-axis |
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Responding/ dependent variable |
The variable that responds to the change that the scientist made. Is written in the data table. Graphed on the y-axis |
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Scientific Method step #5: |
Analyse the data; What information did you gain from the experiment? Analyze the data collected. |
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Scientific Method step #6: |
Draw conclusions; Accept or reject the hypothesis? Publish your findings for other scientists. |
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If the hypothesis is excepted... |
Continue the research developing a more specific hypothesis |
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If the hypothesis is rejected... |
use the data and conclusions drawn from the experiment, revise your hypothesis to something more logical... and retest it |
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A hypothesis is... |
Proposed prediction to be tested can be rejected or accepted. |
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Theory: |
an explanation of based on many observations supported by experimental results. Also predicts what might happen in the future |
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Law: |
"rule of nature", evidence summed up by observations and experimental results to describe a pattern found in nature. No why or how, it just is |
