Explanation:
blood contains far fewer white blood cells than red blood cells , bud the body can increase the production of white blood cells to fight infection ...
I'm sure it's true since before doing a science experiment/If you're trying to figure something out, you need a Hypothesis.
The answer for this question is B. Don't require a pre-inspection agreement
Hope I helped please branliest answer if possible
It's empty or fairly large, making the sounds from your hands bounce of the walls and therefore having it echo