Si todos los sres vivos estan formados por celulas
¿todas las celulas ceran iguales ?¿en que se diferencian?

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

Adepositional also feature that forms where a stream enters a lake or an ocean is a