Chemical evolution leading to the origin of life occurred as a. RNA -> Pre RNA -> prebiotic -> DNA -> Primordial cell
b. prebiotic -> Pre RNA -> RNA -> DNA -> primordial cell
c. prebiotic -> RNA -> DNA -> Pre RNA ->primordial cell
d. DNA-> RNA -> Pre RNA -> primordial cell -> Prebiotic

What happens when the cell copies its chromosomes

What is the approximate time of death of the body temperature is 29.4 degrees celsius

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c.carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit