the answer is : Tt in all the boxes
Explanation: in all the boxes there has to be a T and a lower case t
is important to the transmission of nerve impulses.
a) Zinc
b) Calcium
c) Sodium
d) Iron

"A <span>recent survey by a news agency showing that most parents across the country favor Internet censorship" is the one source among the following that is the </span><span>most relevant and credible. The correct option among all the options that are given in the question is the third option or option "C". I hope it helps you.</span>
The answer is A. However, since I do not want to accidentally plagiarize, I will give you a link to a wonderful in-depth explanation from another Brainly user who answered the exact same question.
brainly.com/question/7102361
I believe that the answer to this question is energy!! because cells need energy and the reason they respire is for energy