Sexual reproduction
a. maintain a slow rate of evolutionary change.
b. limited the material in which natural selection can act upon.
c. increased genetic variation.
d. maintained the same gene combinations over time.

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

am i too late?

explanation: