Answer: When you mix sand and water there are no reactions. The sand sits at the bottom of the water because the sand is heavier than the water is.
A carrier is a child who carries the genes of from parents but the gene doesn't show itself because of being masked by the dominant gene.
You're gonna have to give us a picture to support your question..
Answer:
Natural selection.
Explanation:
Natural selection is when organisms who are most adapted to their environment survive and pass on their genes while those with "unfit" genes die and don't get the chance to reproduce! This slowly creates a population that is most well suited to their habitat. Hope this helps again LOL! :)
Answer:
Because asthma is aninheirited trait most of the time. It makes it hard to breath when active and need air. It brings mucus in the lungs and cloggs most of the lungs. Making it hard to breath.
Explanation:
