Yes, of course! They may not always realize that instead of helping sometimes they're harming. They could push their child into a school that can help them for the future even though they want to try a different school. They can annoy their child and they'll get sick of it and lose interest in their subject.
There is variation in DNA.
The answer is A) Carbon
Hope this helps.
Africa is the only place where giraffes live in the wild
