Cuantas especies de animales han sido identificados

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?