Testosterone and serotonin are the two hormones consistently related to high levels of aggression.
Answer:
Homologous chromosomes are paired early in the cell reproduction process. and one pair of sex chromosomes The autosomes carry the genes that determine most body characteristics
Explanation:
Answer:
Minerals from the land are washed into the ocean.
Because of the gradual change in habitat, modern horses developed rougher teeth, stopped walking on several spread out toes and developed hoofs, they started developing larger speeds, and numerous other things.