Answer:
Point mutations can cause serious changes to an organism if they change the way a protein works. A mutation in DNA alters the mRNA, which in turn can alter the amino acid chain. ... And a base substitution can also cause a silent mutation, in which the protein's function doesn't change at all.
The state of maintaining a stable internal environment regardless of changing external conditions is called 
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A is the answer because that is how we should understand the poetic words used by the author as it does not need to be in the dictionary
Rotation is the spinning of a planet, revolution is when a planet circles the sun/planet.
Answer:
Dogs were probably domesticated by accident, when wolves began trailing ancient hunter-gatherers to snack on their garbage. Docile wolves may have been slipped extra food scraps, the theory goes, so they survived better, and passed on their genes. Eventually, these friendly wolves evolved into dogs
Explanation:
