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DanielleElmas [232]
3 years ago
8

Peppered moths come in two colors, black and white. What did Kettlewell show, with regard to peppered moth populations and tree

coloring? (Recall that England at the time was heated mainly by coal in urban areas.)
Biology
1 answer:
Arlecino [84]3 years ago
5 0
Pollution caused the environment to become more darkly colored, so moths were selected to be blacks and greys.  Before pollution they were white and lighter colors.  <span />
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Explanation:

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this the best i got, hope it helps :)

7 0
3 years ago
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luda_lava [24]

Answer:

i think the correct answer is c

Explanation:

hope this is correct

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When an occlusion of the coronary vessel occurs, the person experiences a?
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If a species has 35 percent adenine in its dna, what is the percentage of the other three bases?
Basile [38]

Answer:

The percentage of other bases are: Thymine = 35%, guanine = 15% and cytosine = 15%.

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There are four bases in DNA molecules, the bases are adenine, thymine, guanine and cytosine. The quantity of adenine and thymine are always equal, so also, the quantity of guanine and cytosine are always equal. Based on the information given in the question, Adenine = 35%, this implies that thymine too is 35%. The two bases added together give 70% , leaving only 30% for guanine and cytosine. Cytosine and guanine will share this equally and so each one of them will have 15%.

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