Achicken egg begins as one cell, how can one cell become a chick?

Some plants have reproductive structures that them reproduce using natural forces or animals. how does the reproductive structure shown here ensure the reproductive success of plants?

Some infants in poorer households are not fed this important food for all babies. what is it? a. baby food b. breast milk or infant formula c. water. d. all of the choices are correct

Why would one lymph node in the neck be swollen and not the other? what causes them to swell?