Natural selection is a mechanism by which populations adapt and evolve.
Answer:
What is true of natural selection? A. Natural selection is a random process. B. Natural selection creates beneficial mutations. C. The only way to eliminate harmful mutations is through natural selection. D. Mutations occur at random; natural selection can preserve and distribute beneficial mutations.
The answer is D
Explanation:
natural selection can simply be explained as individuals that have specific inheritable traits will most likely tend to adapt and survive and as well reproduce at higher rates than others. mutation occurs when the nucleotide sequence of an organism changes. so natural selection can preserve and distribute beneficial mutations.
Answer:
A is a Comet, B is an asteroid
Explanation:
From its long hazy tail, it appears that the object in figure A is a comet. Comets are a mixture of ice, frozen carbon dioxide, rock, and dust. The bodies shown in figure B appear to be asteroids, which are chunks of rock.
The best answer is A. Enzymes work best at a certain temperature, so that if the enzyme is outside it’s ideal temperature, it won’t function normally.
B and C are incorrect because enzymes are made of amino acids, not nucleus acids or simple sugars.
Because the scientists extracted the enzyme from the organism, the amino acid sequence cannot be different between the enzyme and the enzyme in the blood. Thus, D is incorrect.
I believe your answer is B... I hope this helps!
