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Eddi Din [679]
3 years ago
13

Changes in DNA are known as mutations and can be sometimes produce beneficial changes in population. A mutant form of the normal

ly light-colored peppered moth is dark-colored. The dark-colored moth blends in with soot-covered trees in heavily polluted areas.Why would the dark-colored mutation be beneficial in a polluted area?
Chemistry
1 answer:
soldier1979 [14.2K]3 years ago
4 0
The dark colored moths are beneficial in a polluted area because they have a lesser chance of being eaten since they blend into the trees polluted with soot. 
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3 0
2 years ago
A 225 g sample of an unknown solid is heated 67C and placed into a calorimeter containing 25.6 g of water at 15.6°c. If the fina
Stella [2.4K]

Answer:

= 1.271 J/g°C

Explanation:

Heat released by the metal sample will be equivalent to the heat absorbed by  water.

But heat = mass × specific heat capacity × temperature change

Thus;

Heat released by the solid;

= 225 g × c ×(67 -53) , where c is the specific heat capacity of the metal

= 3150 c joules

Heat absorbed by water;

= 25.6 g × 4.18 J/g°C × (53-15.6)

= 4002.0992  joules

Therefore;

3150 c joules = 4002.0992 joules

c =4002.0992/3150

 <u> = 1.271 J/g°C</u>

6 0
3 years ago
Solution A has twice as much solute as solution B is it possible for the solutions to have the same concentration
pishuonlain [190]
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which one of the following is an endothermic process?1.ice melting 2.water freezing 3.a boiling soup 4.the reaction of HCl and N
Llana [10]
<span>From the above given choices :
 melting is an endothermic process</span>
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3 years ago
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