In a phospholipid, the ionic head is and the lipid tail is

This is what i did 45-5=4040÷4=10so there are 10 white marbles but am not sure is just a question that am not sure

Interacting group of various species in a common location. for example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.

Ithink the answer is true