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...29....cells,...tissues,...organs caused by free radicals , environmental pollutants, or even bacterial, fungal or viral infections. Over time, DNA changes in response to this chemical onslaught, ...
1m 12s |
2 years ago
Science Central
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Scientist
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This section covers cell basics. Included are organ systems within the human body, as well as a description of tissues and organs.
11m 50s |
2 months ago
HowStuffWorks
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hsw
...t that determines how and when cells divide, how they become different and how they organize themselves into different tissues and organs. Chromosomes contain the instructions that instruct the ...
3m 42s |
4 months ago
HowStuffWorks
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Cell division
Sexual reproduction
Cell (biology)
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hsw
...e multicellular and share basic characteristics, including cells with nuclei and the acquisition of food by ingestion. Animals organize specialized cells into tissues and organs to achieve ...
1m 38s |
4 months ago
HowStuffWorks
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Multicellular organism
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hsw
The skeletal system provides support of soft tissue, protects the body's organs, works with the muscular system to move the body, serves as a reservoir for minerals and produces blood cells.
1m 52s |
2 months ago
HowStuffWorks
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Tissue (biology)
Muscular system
Cell (biology)
Blood cell
Soft tissue
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hsw
This section discusses the nine organ systems in the human body and how they work together.
3m 29s |
7 months ago
HowStuffWorks
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Tissue (biology)
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