V final = (Mass x V initial) + (Mass x V initial) /m + m
V = (0.04 x 300) + ( 0.5 x 0 ) / 0.04 + 0.5
V = 22.2 m/s
Both have phosphate-pentose back bone, as well as both have adenine, cytosine and guanine bases.
W and Z are most likely to be gas giants!
B false
The cell theory was developed in 1665 and the microscope in 1590