White blood cells which are also called leukocytes, are an important part of the immune system. There are five major types of white blood cells that are neutrophils, lymphocytes, eosinophils, monocytes and basophils.
These cells help fight infections by attacking bacteria, viruses, and germs that invade the body.
White blood cells originate in the bone marrow but circulate throughout the bloodstream.
An average normal range is between 3,500 and 10,500 white blood cells per microliter of blood (mcL)
Answer:
C because a lot of young people have accidents with cars . Sometimes they go too fast or they do not pay attention on the road.
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Musk was born to a Canadian mother and South African father and raised in Pretoria, South Africa.He briefly attended the University of Pretoria before moving to Canada when he was 17 to attend Queen's University.He transferred to the University of Pennsylvania two years later, where he received a bachelor's degree in economics from the Wharton School and a bachelor's degree in physics from the College of Arts and Sciences.He moved to California in 1995 to begin a Ph.D. in applied physics and material sciences at Stanford University, but decided to pursue a business career instead of enrolling.He co-founded (with his brother Kimbal) Zip2, a web software company, which was acquired by Compaq for $340 million in 1999. Musk then founded X.com, an online bank. It merged with Confinity in 2000, which had launched PayPal the previous year and was subsequently bought by eBay for $1.5 billion in October 2002
Answer:
A.they are chemically different substances
Explanation:
Drugs and medicines are two different thing though pepole tends to use the word interchangeably. Drugs are not considered as medicine because of the <em>fact that they are chemically different substances. </em>
Some drugs gives people the hallucinating effects instead of to cure, treat or prevent diseases hence the reason why it is banned and a heavy fine given to some caught with it.
Medicine on the other hand, are meant to prevent or cure diseases. most of this could be purchased without the doctors prescription in the pharmacies.
Answer:
A pedometer, or step-counter, is a device, usually portable and electronic or electromechanical, that counts each step a person takes by detecting the motion of the person's hands or hips.
Explanation:
