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just olya [345]
2 years ago
11

dichlorodiphenyltrichloroethane, commonly known as ddt, is a chemical compound developed as an insecticide. examine the data (fr

om 1959) displaying the percentage of ddt resistance in insect populations. what statement best explains the trend seen in the data in terms of evolution?
SAT
1 answer:
olya-2409 [2.1K]2 years ago
8 0

Answer:

B) DDT resistant mosquitoes existed in the population. The presence of DDT selected for mosquitoes that survived the application. Those resistant mosquitoes reproduced with more success.

Explanation:

Got the answer wrong

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Plz help fast!!!!!!!!!!!!!!!!!!!!!
Montano1993 [528]
The answer should be A because the 2 is a negative 2 not a positive 2.
7 0
3 years ago
Read 2 more answers
The structure of adenosine triphosphate (ATP) is shown here. Which statement best explains how energy stored in the chemical bon
Nadusha1986 [10]
<h2>Answer:</h2>

When the bond between the second and third phosphate is broken down in different cellular processes huge amount of energy like 7.3 K cal is released.

<h3>Explanation:</h3>
  • ATP is the energy currency for the cells. Cells produce this currency in mitochondria via respiration.
  • As the energy is stored in the electrons involved in the boding between Gama phosphate and beta phosphate.
  • Formation of this energy requires a huge amount of energy and its breakdown also release that energy.
3 0
4 years ago
How far down do deepwell injection wells typically go?
Ilya [14]

Answer:

336 ft

Explanation: Because of the value of how far they went

3 0
3 years ago
A small office supply store sells paper clips in packs of 100 and packs of 250. If the store has 84 packs of paper clips in stoc
sveta [45]
Let x and y be the number of packs with 100 and 250 paper clips, respectively. The system of linear equations that would best represent the given is
                                     x + y = 84
                                    100x + 250y = 12,300

The values of x and y from the equations are 58 and 26, respectively. If a person buys half of the packs of 250 paper clips,
                              n = (0.5)(250)(26) = 3250

Thus, a person bought 3250 paper clips. 
3 0
3 years ago
A marble is thrown horizontally with a speed of 15 m/s
MAXImum [283]

Answer:

Every action has a reaction, therefor the marble will first be affected by air resistance, and also friction when the gravitational pull will cause it to drop to the ground. Eventually, the marble will have to come to a stop. If this marble was thrown in space, the marble will continue on in a horizontal line at a constant speed of 15 m/s, and this is because there is no air resistance acting against the marble, as well as no friction.

3 0
2 years ago
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