I believe the answer is B.
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 :)
Hope this helps :)
Answer:
the two main factors that influence how a volcano will erupt are viscosity and gas content. Both are related to the composition of the magma . Hawaiian volcanoes tend to erupt basalt , which is low in viscosity and low in gas content (about 0.5 weight percent). so OB
Explanation:
The atoms and molecules produced by the reaction are called products. This causes the atoms to be rearranged into new substances.
The answer:
An atom's ability to undergo chemical reactions is determined by its outermost electrons.
D. nRNA... hope it helps :)