atoms of ever isotope of carbon have the same ATOMIC NUMBER or the SAME NUMBER OF PROTONS
Sponge body contains cells but not perform work together!!
But they are made up of two embroyonal layer as endoderm and ectoderm !!
so thee most appropriate answer is A !!
One reason could be that they do not have most of the seven characteristics of life (reproduction, homeostasis, heredity, response to the environment, growth, cellular organization, and metabolism.)
<span>Natural selection is a process by which organisms that are better adapted to their environment tend to C. evolve new traits. Evolution is a process of change through time. There are several mechanisms of evolution, such as natural selection, mutations, migrations, and genetic drift. Natural selection is the mechanism by which species adapt to their environment to increase their chance of survival and reproduction. It can result in progress and cause some organisms to evolve new traits they need. </span>
