Hey there! The answer to your first question is SILICON, Nickle has 28 protons, silicon has 14, 14+14=28. Its the only element thats adds up. I dont know about the 2nd one myself.
Sexual reproduction promotes adaptations, increases genetic diversity, and increases chances of survival.
False pollen<span> is transported to nearby </span>plants<span> by raindrops. ... embryo sac of angiosperms </span>consists of<span> eight diploid cells and one haploid egg cell</span>
