<u>"</u><u><em>False" because the pure substances are made up of single elements or compounds.</em></u><u> </u>Hope this helps! Thank you for posting your question at here on Brainly. Have a great day! -Charlie
The fourth one that looks like an M. This is because it describes changes in population genetics in which extreme values for a trait are favored over intermediate values. In this case, the variance of the trait increases and the population is divided into two distinct groups.
This is because they lost nearly 30 to 50 ml of blood every month during menstruation and some even 80 ml.
And also the metabolism of females is lower than males due to low rbc count in hormones.
