Im not 100% sure but i want to say main sequence stars
I think the answer is D. ( or supported by observations ). Because theories change over time, they both NEED to be proven, they do NOT go off of consensus, but they do NEED to be supported by observations.
I hope this helps.
Chloroplasts. They are only in green plant cells, so, unless you are a green plant, humans and flatworms would not contain them.
It is a rare genetic mutation that both the maternal and paternal partners have to be at least a carrier for the albinism gene.
