<span>Compact bone is the external or outer layer of a bone that gives bone tissue a "hard-like" feel, while a spongy bone is the inner bone. Spongy bone is porous and sits underneath the compact bone. If spongy bone does not receive ample calcium nutrients, it is most vulnerable to breakage.
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Answer:
Explanation:
It certainly isn't the last one. A theory is close to a guess. It fits all the known facts, but there is usually something missing. If someone figures out what is missing, usually by experiment, then the theory become a fact.
The rest of them (1 2 an 3) can all be true. 3 is the least viable. You have to be able to come up with a counter example to reject a theory.
I'm not sure about 2. New phenomena can still be part of current theories. Reluctantly, I wouldn't choose 2 because
1 is the best answer of a very poor lot. Do not be surprised if you use it, that it turns out to be wrong.
Explanation:
Aluminium is a metal from group 13. ... The acids in the pickle would react with aluminium forming hydrogen gas in excess. This will deteriorate the quality and taste of the pickle and would also harm the human body if consumed.
Answer:D
Explanation:Hydropower is a nonrenewable resource that can be harmful to local ecosystems.
Hi there!
The cell theory states that all cells can make duplicates of themselves. They do this by dividing themselves in half, until they are two cells.
The cell which divides itself in half is called the parent cell, and the cells that are produced from this are called daughter cells.
The origin of the cell, would most likely be the parent cells.
Hope this helps!
~DL
