Bones are living tissue which have their own blood vessels and are made of various cells, proteins, minerals and vitamins. This structure enables them to grow, transform and repair themselves throughout life.During childhood and adolescence, cartilage grows and is slowly replaced by hard bone.That is why children bones are a little harder to break but adult bone a little easier to break because there bone gets harder when they grow :)
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A is correct is the answer
Answer:
stimulants (e.g. cocaine)
depressants (e.g. alcohol)
opium-related painkillers (e.g. heroin)
hallucinogens (e.g. LSD)
The physiological process which explains the principles is mitosis b.
Answer:
An experimental control is used in scientific experiments to minimize the effect of variables which are not the interest of the study. The control can be an object, population, or any other variable which a scientist would like to “control.”.
Explanation:
