¿Crees que exista algún tipo de señales que le indiquen a las células la edad que tienen y cunado deben morir?

How many years would it take the atlantic ocean to grow 500 centimeters? show your work.

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?