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Merge branch 'patch-9' into 'master'

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typos in bio

See merge request magicalsoup/Highschool!26
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James Su 2019-12-05 19:30:52 +00:00
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Grade 10/Science/SNC2DZ/Unit 2: Biology.md
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@ -236,12 +236,12 @@ A person contains roughly 100 trillion cells
## Cancer
- Group of diseases that involve out-of-control cell division which may spread throughout the body
- `Tumour`: Uncontrolled lump of cells that do not perform normal cellular functions
- `Benign`: Cells that do not metastasise or interfere with normal cell function (harmless)
- `Malignant`: Cells that interefere with normal cell activity and metastasise
- `Benign`: Describing a tumour that does not metastasise or interfere with normal cell function (harmless, non-cancerous)
- `Malignant`: Describing a tumour that does interfere with normal cell activity and metastasise
- `Carcinoma`: Cancerous/cancer
- `Metastasis`: Primary (original) tumour spreading throughout the body to create secondary tumours
- `Carcinogens`: Anything that can cause cancer, e.g., chemicals, radiation/energy, some viruses
- `Neoplasm`: A solid or fluid-filled sac that the body forms to isolate defective from healthy cells (e.g., cysts)
- `Neoplasm`: A solid or fluid-filled sac that is formed by uncontrolled cell growth (e.g., tumours)
- Random mutations can also lead to a cancer cell due to irregular DNA replication
- Generally, multiple mutations in several key genes are required for a cell to become cancerous
- Cancer is *not* contagious, neither can it be inherited
@ -400,7 +400,7 @@ A person contains roughly 100 trillion cells
- Invertebrate circulatory systems are either **open** or **closed** (douse everything with blood then collect or use vessels like we do, respectively)
- Most invertebrates have an open circulatory system
### Mycardial infarction
### Myocardial infarction
- Also known as **heart attack**
- When `atherosclerosis` occurs in `coronary arteries` (when fatty plaque deposits build up in arteries feeding the heart)
- If clots break open a larger clot forms over it