B - When many individuals of the same species are available for mating.
And
C - When the individuals live in a stable environment in which they thrive.
All plant and animal groups existing together and the physical factors with which they interact compose an ecosystem<span>.</span>
Nowadays, that theory is rejected. Friedrich Wohler was able to synthesize urea from cyanic acid and ammonium, both being inorganic matter. <---This disproves the theory of vitalism.
The atomic number of an atom is the number of protons it has, and if the atom is neutral, it will also be the number of electrons. Therefore:
The atom you're talking about has 103 protons, and an atomic number of 103.
Hope it helped,
BioTeacher101