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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.
Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.
Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
![he White-throated Bee-eater, Merops albicollis is a near passerine bird in the bee-eater family Mero](https://biology-forums.com/gallery/47/medium_12359_29_04_12_6_19_16.jpeg)
![The cells in blood; A, red blood cells (erythrocytes); B, platelets (thrombocytes); C, white blood c](https://biology-forums.com/gallery/47/medium_18099_24_10_12_3_35_25.jpeg)