<span>An
atom with an atomic number of 12 has 12 protons. Because the mass
number is the sum of the protons and neutrons, the mass number would
need to be at least 12. I hope this helped!
</span>
A. DNA mutation (i think)
Geology, Meteorology, Oceanography, and Astronomy<span />
During the lifecycle of the plant we can encounter both haploid and diploid forms.Haploid form of the plant is called a gametophyte. This form was created from spore and enables creation of haploid gametes in the next stage.
I think there was a part missing but adaptations are when an organism has specific traits that help them survive in an environment, this does not occur over one animals lifetime, it happens over generations. So it would be like if everything set on fire, only the animals that had traits to withstand the fire would reproduce and have offspring. Then that species is adapted to the fires
