Answer:
A
Explanation:
A covalent bond consists of the mutual sharing of one or more pairs of electrons between two atoms. These electrons are simultaneously attracted by the two atomic nuclei. A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions.
1 fill the beaker with water
2 check the amount you have
3 drop the marble in and subtract the original amount with the one you have now
I beleive it is either A or C. im stuck between those 2 answers. I did this section 2 weeks ago.
Answer:
plasma
Explanation:
the plasma circulates dissolved nutrients such as glucose, amino acids and fatty acids.
