13 because an atom has the same number of protons as neutrons
Explanation:
first one because absolute dating is a thing for rock layers
It says it will never change. So whatever it was before the change, it will be the same after the change. So, 200 should be correct.
Answer:
The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. ... The diagram is used by biologists to determine the probability of an offspring having a particular genotype.
Explanation:
in biology it predicts the possible offspring provided the features of the mother or father
