Baryonic dark matter may occur in non-luminous gas or in Massive Astrophysical Compact Halo Objects, and stars. So therefore it’s D.
The answer is ; B
I hope I helped
<span>The answer to the question "A mutation in yeast makes it unable to convert pyruvate to ethanol. how will this mutation affect these yeast cells" is "a" the mutant yeast will be unable to grow anaerobically.</span>
A theory is a set of ideas or facts that explains an existing predicament or situation. In this case, the problem presents a statement on the theory of evolution. The phrase that describes a theory is that "all life is related and that organisms have become more complex over time."
D, because skin tans to help us stand being in the sun without getting burned.
An example of physiological adaption is being able to digest milk. Before, humans were not able to digest milk before we developed enzymes that now make us have the ability to do so, thus allowing us another food source.
