Term
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Definition
| chemicals that are produced by white blood cells that kill specific pathogens |
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Definition
| a nerve cell that passes messages throughout the body |
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Definition
| an organ that releases hormones directly into the blood |
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Definition
| an organism that causes disease |
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Definition
| a substance released by an endocrine gland that controls some of the body's functions |
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Definition
| a message that travels across a neuron and from one neuron to another |
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Definition
| an organ in the endocrine system that produces a chemical |
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Definition
| a chemical that breaks down food into nutrients during digestion |
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Definition
| tiny sacs in the lungd at the end of bronchioles |
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Term
1.Cells
72. 5 trillion
3. your body |
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Definition
1._____ are the building blocks of your body.
The human body is an amazing system made up of more than 2.__ ________ cells
Each cell is part of a larger living unit-3.____ ____
Cells
75 trillion
your body |
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Term
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Definition
| Millions of chemical processes go on in your body every minute. They take place in your 1.____. Cells depend on eachother to keep all of the body's internal condtions in balance so that all cells can work 2.________ |
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Term
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Definition
The largest cell, the human ______ cell, is about the diameter of a human hair.
Most human cells are much _____ (larger, smaller)
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Term
1. functions
2. activities (or funtions) they do |
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Definition
Although all cells are made up of the same basic parts, each type of cell is adapted to perform certain activities, or 1.________.
Cells are organized by the 2. _______ ___ ____ |
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Term
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Definition
Cells that work together to perform a certain job make up ______.
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Term
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Definition
Tissues move your body, tell your body what to do, holds the body together, supports the body, cushions organs, or release substances. When two or more tissues work together to do a job, they form an 1._____. The job of an 2.____ is usually not as simple as the job of a tissue.
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Term
1. organ system
2. organ systems |
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Definition
Each organ in your body is part of an 1._____ ______.
Differnt 2. ____ ______ work together and depend on eachother.
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Term
Cells-Tissues-Organs=Organ Systems
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Definition
State the step-by-step process as to how the body forms organ systems.
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