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marusya05 [52]
1 year ago
15

A farmer sprays his corn crop with pesticides each year. After 10 years, he realizes that the pesticides are no longer functioni

ng to kill the pests and his crop has been destroyed. Explain to the farmer how this happened. In your answer, be sure to
explain how the resistance came about
why the pesticide work in the beginning but no longer works
what he can do to fix this problem
Biology
2 answers:
Leokris [45]1 year ago
5 0

Answer:

The pesticides are worn off by the weather.

Explanation:

Becuase the chemicals can only work for a little in the pesticides so when bad weather comes around it finishes the rest of the chemicals in the pesticide.

Hope this Helps :)

nexus9112 [7]1 year ago
5 0

Probably insects developed resistance to the pesticide.

Explanation:

The term resistance refers to an inheritable change in the population sensitivity,. In the exposed example, the first time that the farmer sprayed the pesticide, the insect population decrease sharply. This means that the chemical affected them severely. They probably passed this modification to the following generations, which expressed it, and developed resistance to the pesticide.

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Which two structures produce energy that cells can use?
SVETLANKA909090 [29]

correct AnswerAnswer:

D- D and A

Explanation:

REAL EXPLANATION

<h3><em>Chloroplasts take energy from the sun ad make it into food by a process called photosynthesis.... it then makes the energy to power the plant..... </em></h3><h3><em>Mitochondrions are called the power house of the cell, powering and letting the cell do its work transporting more energy into the plant....</em></h3>
8 0
3 years ago
How does the heart pump blood from the right ventricle to the lungs and the left ventricle to the rest of the body? (mention the
netineya [11]
The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
4 0
2 years ago
All cells need energy to live. How do the organelles in the plant cell above work together to get and use this energy?
Sloan [31]

Answer:

chloroplast: makes food for plant cells, photosynthesis

mitochondria:produces energy the cell needs to carry out its functions; release energy

vacuole: stores food, water, and waste

lysosome: found mainly in animal cells, digests old cell parts

endoplasmic reticulum: carries proteins and other materials from one part of the cell to the other

cytoplasm: gel -like fluid where the organelles are found

nucleolus: makes ribosomes, center of the nucleus

ribosome: makes proteins

cell membrane:controls

Explanation:

I'm pretty sure the answer is D based on the info above,and because its the only one that has the correct information about the cell parts

hope its correct

4 0
3 years ago
Read 2 more answers
The remote sensing technique known as _________ has enabled scientists to map more than 800 square miles (2,100 square kilometer
allsm [11]

From what we know, we can confirm that the remote sensing technique described in the question is that of laser scanning.

<h3>What is laser scanning?</h3>

This is, as described in the question, a remote sensing technique. This is a method most often used for land surveys, in which lasers are pointed at the area, which gather information in the form of 3D coordinates, which are later compiled to create detailed maps of the region.

Therefore, we can confirm that the remote sensing technique used by the PACUNAM project in order to map more than 800 square miles of the Maya Biosphere Reserve in Guatemala, is that of laser scanning.

To learn more about laser scanning visit:

brainly.com/question/7663692?referrer=searchResults

7 0
2 years ago
Mr. Kline's earth science class set up an experiment to compare the heating and cooling rates of land and water. They filled cup
marusya05 [52]
A because the it going up not down
7 0
3 years ago
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