Answer:
Es un sistema biológico construido por una comunidad de organismos vivos
It uses its potential energy and converts it into kinetic energy as it falls (the lower it is during the fall it will be mostly kinetic, however the higher it is during the fall it will be mostly potential energy)
Sexual reproduction produces offspring by the fusion of gametes, resulting in offspring genetically different from the parent(s). Asexual reproduction produces new individuals without the fusion of gametes, genetically indentical to the parent plants and each other, when mutations occur
It is a protein and it functions in a red blood cell to help carry oxygen
"REPRODUCTIVE ISOLATION" needs to occur for speciation to happen.....