Having an alteration of generation life cycle means that…

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Wich level of organization includes all the other levels or organizations

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred