Term
| What are the major roles and organs of the Circulatory System? |
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Definition
- acts as a transport system for food and oxygen to cells and collect waste and get rid of it.
Organs: Heart, blood vessels, arteries, capillaries, veins |
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Term
| What are the major roles and organs of the Endocrine system? |
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Definition
- sends signals in form of hormones
Organs: pituitary gland, thyroid gland, adrenal gland, gonads, pancreas |
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Term
| What are the major roles and organs of the excretory system? |
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Definition
- removes metabolic waste
Organs: Kidneys, skin, liver
removes salt |
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Term
| What are the major roles and organs of the Nervous System? |
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Definition
- the mental and physical activity that is controlled by the system
organs: brain, spinal chord, nerves |
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Term
| What are the major roles and organs of the respiratory system? |
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Definition
- release CO2, supply oxygen to cells and system
Organs: lungs, pharynx, larynx, trachea, aveoli, mouth, nose |
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Term
| What are the major roles and organs of the digestive system? |
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Definition
| - breaks down food and turns it into energy |
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Term
| List the 3 properties of the cell theory. |
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Definition
1. All living things are made up of cells.
2. Cells are the basic structure and function
3. All cells come from pre-existing cells |
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Term
| What is the difference between the dependent and independent variable? Where does each one go on the graph? |
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Definition
Dependent l
l
l_____________
independent
dependent is what changes because of the independent. |
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Term
| How do you find the total magnification of a specimen when using a microscope? |
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Definition
| eye piece magn. (10x) X set magn. (10x, 40x, 400x) |
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Term
| what are enzymes? How do they work? |
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Definition
Enzymes are made by cells
- speed up chemical reactions
- also called catalyst
The enzyme has an active site that is a specific shape for a subject. |
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Term
| Write the steps of the scientific method in order. Give brief explanation of each. |
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Definition
1. Recognize the problem.
2. Make Observations (gather background info)
3. State your hypothesis.
4. Conduct the experiment.
5. Analyze data
6. Draw a conclusion
7. Repeat the process to validate results. |
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Term
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Definition
| the ability to maintain a stable environment |
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Term
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Definition
| a method of investigation involving observation and theory to test scientific hypothese |
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Term
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Definition
| a statement that can be tested experimentally |
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Term
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Definition
| an experimentally manipulated variable |
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Term
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Definition
| the responding variable in an experiment |
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Term
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Definition
| in an experiment, a group or individual that serves as a standard of comparison with another group or individual to which it is identical except for on factor |
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Term
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Definition
| The group in a study that is subjected to the independent variable |
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Term
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Definition
| Variable whose effects must be neutralized or controlled. |
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Term
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Definition
| one molecule of oxygen and 2 hydrogen |
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Term
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Definition
| when a compound with one side having a negative charge and the3 other side a positive charge |
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