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erastovalidia [21]
2 years ago
15

Why did most mosquitoes perish when DDT was sprayed the first time?

Biology
1 answer:
WINSTONCH [101]2 years ago
7 0

Answer:

Due to no resistance.

Explanation:

Most mosquitoes perish when DDT chemical was sprayed the first time because these mosquitoes are vulnerable to the DDT chemical and there is no resistance present in their body against this chemical. DDT chemical is an insecticide which is used against insects or pests that causes damage to human, organisms and crops. DDT was first synthesized in 1874 by the Austrian chemist named Othmar Zeidler.

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Both the force of windshield on the bug and that of the bug on the windshield are equal but in opposite direction.

<u>EXPLANATION: </u>

When the vehicle is moving forwards and air flows around it, and it also causes the flying bugs to hit the windshield. This impact causes a force that is imparted on both the bug and the windshield.

Thus both the bug and the windshield experience equal and opposite reactions result in Newton's Third law of motion. According to this law, it states that there will be an equal and opposite reaction for every reaction.

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3 years ago
Mars has ice caps containing frozen CO2 and H2O, and little to no atmosphere. It’s lack of atmosphere causes it to very hot in t
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Answer:

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Explanation:

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2 years ago
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Explanation:

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5 0
3 years ago
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natulia [17]

Answer:

The longest strand of DNA is the one that has descended the least in the electrophoresis gel.  In other words, it is the one at the top of the gel.

Explanation:

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4 0
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