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Biology Body System Notes

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Notes on the body systems for biology. This document includes notes on blood, blood vessels, the respiratory system, the circulatory system, the digestive system, the immune system, immune system defenses, immune system vocabulary, an overarching page about diseases, homeostasis, feedback mechanisms, the effects of exercise, and more vocabulary terms. This document is designed for students grades 9 and 10.

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Science

Biology
Notes

, Blood
Red blood cells:
Biconcave disk shape
Keeps producing hemoglobin which
transports oxygen and is an iron-containing
pigment
Produced in bone marrow
Carbon dioxide removal
Short life span
No nucleus

, White blood cells:
Colorless
Changes shape/shapeless
Produces antibodies and fights invaders by
engulfing them


Plasma:
Transports nutrients and hormones to the
cells and waste products away from the cells
Liquid
90% water
10% gases, waste producs, antibodies,
enzymes, salts, nutrients, and hormones

Platelets:
Clots blood to stop bleeding
Small cell fragments

Document information

School year
1
Uploaded on
October 19, 2026
Number of pages
23
Written in
2026/2027
Type
Class notes
Professor(s)
N/a
Contains
Biology
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