This can be because of their genetics. The siblings may not have inherited their parents looks, but maybe they inherited their grandparents looks, or even their aunts looks. This is all due to genetics. It's sort of the same thing, when two caucasian parents have an african-american child. That would be because somewhere along the family tree someone was african-american.
Anyways, I hope this helps!
The answer is the hydrogen bond. All those neat properties of water occurs due to the hydrogen bond
C) voltage gated sodium channels
have a great day!
They are neither, they do not have the mechanism to ingest or produce food.
