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Without us you die arh!!! Don't play play har!!!😤

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Without us you die arh!!! Don't play play har!!!😤

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Nothing is left to chance for the President of the United States. The Presidential car stores the President's blood type in the boot of the car just in case of emergencies.

The amount of blood in a pregnant woman's body will have increased by 50% by the 20th week of pregnancy.

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Where WBC come from?
-come from bone marrow and lymphatic tissues

Functions
-essential parts of immune system
-create a protection network for antigens coming from the environment

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Characteristics:
-smallest blood cell
-irregular shape
-no nucleus

Functions:
-play a role in homeostasis
-help in blood clotting
-aid in healing injured tissue

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Blood is a body fluid in the circulatory system of vertebrates that delivers essential substances, such as nutrients and dissolved respiratory gas to the cells and transports metabolic products away from those same cells.

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Characteristic

Biconcave, disc-shaped

Most numerous blood cells

About 25 trillion RBCs in human's blood

Each RBC 250million haemoglobin

Lifespan 3 to 4 months

Formed in bone marrow

Contains hemoglobin (a protein) that carries oxygen

Mature RBC lack of Nuclei and Mitochondria

Worn out RBCs are broken down & recycled in liver

Iron removed from dead RBC is send back to the bone marrow to produce new RBC

Functions

Transport oxygen from lungs to body tissues

Transport carbon dioxide to lungs for exhalation

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Drink Blood Loh !!!🍷

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55% of blood is made up of plasma
which consists of
91% water
2% Nutrients
7% Blood proteins
45% of blood is made of the cellular components which includes red blood cells , white blood cells and platelets(buffy coat).