Root nodules
You can also just find this on google
During superposition of a wave such as that of the oceans, when the crest and the trough meet, then they cancel out into the period. If two crests meet up, they add up to a crest that’s equivalent to the summation of their amplitudes. This is also true when two troughs meet up.
I believe its B because once its ferilized the egg being to change to grow into a baby
It should be gravitational energy or kinetic energy or potential energy