This can be because of their genetics. The siblings may not have inherited their parents looks, but maybe they inherited their grandparents looks, or even their aunts looks. This is all due to genetics. It's sort of the same thing, when two caucasian parents have an african-american child. That would be because somewhere along the family tree someone was african-american.
Anyways, I hope this helps!
The population doesn’t grow(increase) anymore and the number of organisms stay at about that point(the carrying capacity).
C, as enzymes speed up reactions.
The spider plant forms mounds of narrow leaves. While spider plants with all green leaves can be found, these are the rarest variety. Most commonly, spider plants are found with a white or yellow stripe down the center of the leaves. grows in soutjern africa habitat is 80 degrees or more not past 100 dregrees thoe. Also called ribbon plant. a plant, Chlorophytum comosum, of the lily family, native to southern Africa, that has long, narrow leaves and clusters of white flowers and is widely cultivated as a houseplant.