Explanation:
I'll give you a real answer later need points for test questions sorry!!!!!!
<span>BaSO4
I hope this helps!</span>
Answer:
They are eukaryotic, which means they have a nucleus. Most have mitochondria
Scientists should control most possible variables in experiments to get the most valid and correct data. If many variables are included in experiments it is more difficult to interpret what is causing a different outcome.
If you want an example then a car passing by a standing man is the best one !!
