A population is all the organisms of the same species in a group, like humans. Population is different from a community in that a population is every organism of the species grouped as a whole, and a community is a certain number of organisms within the whole population. That may not make sense, but that’s as good as I can describe it.
Truth water at the top has energy
Cancerous cell just continue to divide giving rise to mases of cells called tumor.
The neuron, or nerve cell, is the basic functional unit of the nervous system
