A farmer is spraying his crops with a specific pesticide. He notices a drastic decrease in the insect population, so he uses the same pesticide the next year. This time, more insects survive. The next year, almost no insects are killed by the pesticide. Why is this happening?

Answers

Answer 1

Answer:

Probably insects developed resistance to the pesticide.

Explanation:

The term resistance refers to an inheritable change in the population sensitivity, reflected through the consecutive failure of the chemical effects, correctly used in order to reach a certain effect on the insect population.  

Insecticides might produce a genetic modification in the insects, leading them to survive under the effects of the chemical. Insects evolve with the capability of tolerating the poison dose that normally is used to destroy a normal population of plagues.

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. The surviving individuals probably suffered a genetic modification and survived. They probably passed this modification to the following generations, which expressed it, and developed resistance to the pesticide.


Related Questions

please help only if you know
please also only give a simple answer please don’t search up

Answers

transcription and translation of this subset of genes determines how a cell looks and acts when in the process of forming into a more mature cell.

Products enter a reaction and reactants come out of a reaction true or false?

Answers

Answer:

[tex]\boxed {\boxed {\sf False }}[/tex]

Explanation:

In a chemical reaction, the products are produced. The reactants are the substances that react.

In a chemical reaction equation (with the arrow pointing right) the reactants are on the left and the products on the right.

[tex]reactants \rightarrow products[/tex]

The reactants enter and the products come out.

So, the statement given - products enter a reaction and reactants come out - is false and it is actually the other way around.

What are three things done by proteins

Please help i need a answer that is not off the internet it needs to be in own words.
I will mark brainly

Answers

Growth and Maintenance. Share on Pinterest. ...
Causes Biochemical Reactions. ...
Acts as a Messenger. ...
Provides Structure. ...

Where in the oceans are the highest values of salinity found?
in mid latitude regions, wind qusts are strongest
in subtropical regions, where evaporation exceeds precipitation
O near the equator, where precipitation exceeds evaporation
O in polar regions, where ice sheet volumes are shrinking

Answers

Answer: in subtropical regions, where evaporation exceeds precipitation

Hope it helps :)

Explanation:

Which of the following statements is Newton's 1st Law of Motion? A. The object will move in the direction of the unbalanced force. B. Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first. C. An object at rest remains at rest and an object in motion remains in motion at a constant speed and in a straight line, unless acted upon by an unbalanced force.

Answers

Answer:

C.

Explanation:

thats just his first law of motion

Answer:

C. An object at rest remains at rest and an object in motion remains in motion at a constant speed and in a straight line, unless acted upon by an unbalanced force.

Explanation:

In essence, Newton's first law of motion states that an object at rest won't move unless an outside force causes it to move. Similarly, an object moving at a constant speed will continue moving at that same speed indefinitely, unless an outside force causes it to change speed.

I need the last two questions. Can anyone help?

Answers

1. Color can affect a pocket mouse’s ability to survive because if a light colored mouse is in a dark area, it will not survive. A dark colored mouse will survive in a dark area because it will blend in with its surroundings.

2. On the dark rock, mice with dark fur are more likely to survive because they will blend in with the rock.

6. Ross was riding his bike down a hill, and he ran straight into a mailbox. Identify
The statement that most closely describes Ross' motion immediately following
his collision with the mailbox.
A. He is thrown forward over the handlebars.
B. He is thrown backward off the bike.
C. He is thrown sideways off the bike.
D. He is thrown upward into the air.

Answers

Answer:

A. He is thrown forward over the handlebars.

Explanation:

lol inertia

Answer:

a

Explanation:

he is thrown forward over the handlebars

What would be the most likely outcome if the lysosomes of a human cell stopped functioning?

Protein synthesis would stop.
Protein transfer would stop.
Ribosomal RNA synthesis would stop.
Waste would build up in the cell.

Answers

Waste would start to build up in the cell since lysosomes have the role of intracellular digestion of waste materials.

A known disease that is caused by a lysosomal malfunction is Hunter's disease

Which change would be considered a short-term environmental change? Check all that apply. an ice age an El Niño storm a small asteroid impact a tsunami mountain building

Answers

Answer:

i think b, c, and d

Explanation:

An ice age an El Niño storm is considerd to be short term enviornmental change.

What is short term change?

Short-term thinking and long-term implications conflict when it comes to climate change, which affects both corporations and governments. Assessing the risks and taking action before failure has permanent economic and environmental repercussions are necessary in order to meet the challenge of climate change.

Short-term thinking and long-term implications conflict when it comes to climate change, which affects both corporations and governments. Assessing the risks and taking action before the failure-related economic and environmental consequences become irreversible are both necessary in order to meet the challenge of climate change.

Therefore, An ice age an El Niño storm is considerd to be short term enviornmental change.

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please help me if you only know

Answers

Answer:

(1) Translation begins when a ribosome (gray) docks on a start codon (red) of an mRNA molecule in the cytoplasm. (2) Next, tRNA molecules attached to amino acids (spheres) dock at the corresponding triplet codon sequence on the mRNA molecule.

Explanation:

1st one.

Answer:

Hi how are you doing today Jasmine

15. A person with an infection begins to feel hot and feverish. This response MOST likely helps the body fight infection by -​

Answers

Answer:

Elevated body temperature helps certain types of immune cells to work better.

Explanation:

What typically happens to a population if it exceeds it’s carrying capacity?
A. Death rate will exceed birth rate
B. Prey species increase
C. Migration into the area increases
D. Birth rate will exceed death rate

Answers

Answer:

D

Explanation: Population will proceed to grow, until resources are used up, then population begins to decrease.

Answer:

D. birth rate will exceed death rate

The picture above shows the early embryos of a human and a chicken. Gill slits and tails are shown in both. What does
this most likely suggest?

Answers

Answer: C

Explanation:

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Which of these is the direct result of an error in the transcription of a DNA nucleotide
Amino acids do not bond to tRNA.
The nuclear membrane is ruptured.
A codon sequence is incorrect.
Transportation of mRNA does not occur.

Answers

The direct result of an error in the transcription of a DNA nucleotide is that a codon sequence will be incorrect. So the correct option is C.

What is transcription?

The first step in the expression of a genetic code is called transcription. During gene expression, the information stored in the DNA is expressed in the form of proteins.

In transcription, DNA is utilized to produce RNA. The RNA molecule is the copy of the DNA's genetic sequence. The RNA copy produced by the process of transcription is called an RNA transcript.

This transcript has the required information for the construction of a polypeptide chain. But before the formation of proteins, a eukaryotic RNA transcript requires processing to be converted into mRNA.

The mRNA thus produced has codons for the formation of proteins. Each amino acid is a result of the translation of three codons.

Therefore, if there is an error in the transcription of DNA nucleotides, the codon sequence will be incorrect. The correct option is C.

Read more about transcription, here

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what is C6H1200 for photosynthesis

Answers

Answer:

glucose

Explanation:

Molecular formula for glucose is C6H12O6

all you need is in the photo ​

Answers

It’s z cuz y=mxtb and u solve the parobola and its 11teen

NEED HELP ASAP!! 10 points!

Cells are often compared to factories. How is a factory a useful model for explaining the cell?

Answers

Answer:

Each organelle within the cell has its own important job, similar to factory workers. Every organelle plays an important role and without one, the whole team loses function.

Cell is the basic unit of life. Cells unite together and forms tissue. Many tissue will unite and form organ. Organ will unite together to form a organ system.

What is cell?

The building elements known as cells make up all of these plants and animals, including worms in the soil, horseflies on farms, lemurs in the jungles, reeds in ponds, and trees in forests.

Similar to these instances, many live organisms are composed of numerous cells working together. However, certain forms of life, such as the various bacterial and protozoan species, are made up of simply one cell.

Most cells, whether they are solitary or a component of a multicellular organism, are too small to be seen without a light microscope.

Therefore, Cell is the basic unit of life. Cells unite together and forms tissue. Many tissue will unite and form organ. Organ will unite together to form a organ system.

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Tigers running across the field. what would happen if the hydrogen ion pumps in the Tigers mitochondria stopped functioning?

Answers

it probably dies of that because that seems intense so maybe it will die

Answer: A

Explanation:the tiger would not be able to keep running

Please answer, photo is above thank you!

Answers

When calculating net force, we subtract opposing forces, and add together forces going in the same direction! With opposing forces, since you can’t have a negative net force, the smallest force will be subtracted from the largest force!

In the top left corner, an arrow going right is 4N, and an arrow pushing left is also 4N. Because they are equal numbers and in opposite directions, they cancel each other out, for a balanced net force of 0N.

In the bottom left, we have 4N pointed right and 5N pointed left. 5N (largest value) - 4N (smallest value) gives you an unbalanced net force of 1N.

On the top right both forces, 6N and 3N, are pointed in the same direction. Because of this, we add them to get a total 9N net force.

On the bottom right, 7N are going left and 2N are going right. Because they are opposing forces, we subtract 2N from the 7N to get a total of 5N.

What would happen to the size of the mountain
lion population if the deer population increased?

Answers

Answer:They will be like neon shadow

Explanation:

What is the most important function of sweating
A.To remove excess Heat from the body
B. To remove excess Salts from the body
c. To remove excess urea from the body
d. To remove excess water from the body

Answers

A. To remove excess Heat from the body
A. To remove excess heat from the body.


This cools down your temperature.

I hope this helped!


I would appreciate it if you gave me a Thanks and a brainliest (:

Will mark Brainliest! What term refers to crops that mainly protect other crops during their early days?
nurse crops
forage crops
pasture crops
Peas, peanuts, or corn is an example of such crops.

Answers

Answer:

Nurse crops

Explanation:

WILL MARK BRANLIEST!!!

6. The mRNA will release from the DNA and to the _______________, the site of protein synthesis.
7. For the game, use the directional keys/arrows to move the mRNA down and out of the nucleus.
8. Both DNA and RNA are made of building blocks called ___________________.
9. The enzyme that adds new nucleotides to build mRNA is called _______________________.
10. DNA has _____ strands and mRNA has _____ strand of nucleotides.
11. The function of mRNA is to:
12. DNA _____________________ after transcription.

Answers

Answer:

The correct answer is -

6. Ribosome

7. nucleus ⇒ cytoplasm

8. nucleotides

9. RNA polymerase

10. 2 and 1

11. messenger between the genetic information in DNA and the amino acid sequence of proteins in protein synthesis through central dogma.

12. wind up

Explanation:

After the transcription mRNA moves from the DNA to the ribosome out of the nucleus to perform the translation and produce amino acid chains. A Ribosome is the site of protein synthesis.

DNA or RNA both nucleic acids are made up of basic units known as nucleotides that join together to form ribonucleic and deoxyribonucleic acid.

RNA polymerase is the enzyme that binds with the DNA molecule and adds complementary sequences to build mRNA.

DNA molecules are double-stranded molecules that are attached to one another by the hydrogen bonds between the nitogenous basses whereas RNA molecules have only one strand in the structure.

mRNA plays the role of messenger between DNA molecule and ribosome molecule to carry out the genetic information coded in the DNA molecule to produce amino acids in the particular sequence to produce protein.

The formation of new DNA from the old DNA is called Replication and the formation of RNA from the DNA is said to be translation.

The central dogma of DNA defines the following:-

ReplicationTranscriptionTranslation

The answer to the following is as follows:-

6. The mRNA will release from the DNA and to the  CYTOPLASM.

7. For the game, use the directional keys/arrows to move the mRNA down and out of the nucleus. mRNA----> CYTOPLASM

8. Both DNA and RNA are made of building blocks called NUCLEOTIDE.

9. The enzyme that adds new nucleotides to build mRNA is called

RNA POLYMERASE

10. DNA has 2 strands and mRNA has 1  strand of nucleotides.

11 The function of mRNA is to MAKE PROTEIN.

DNA REHELIX after transcription.

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Which substance is a solid?

Answers

Answer:

walls

Explanation:

Answer:

Rocks? Im not sure what you mean.

Some sugar molecules are absorbed from the small intestine into the blood by active transport. Explain why the rate of absorption of these can depend on the concentration of oxygen in the cells lining the small intestine?

Answers

Answer:

Because oxygen is the mediator of active transport.

Explanation:

The greater the oxygen, the greater the active transport, since it requires ATP and this energy currency requires cellular respiration.

middle part of the sternum

Answers

Answer:

The manubrium

Answer: manubrium

Explanation:

is the broad upper part of the sternum. It has a quadrangular shape, narrowing from the top, which gives it four borders.

HELPP!!! MIDTERM!!! ASAP!!!!! I'LL GIVE YOU BRAINLIEST!!!

A student sets up a compost bin outdoors. Inside the bin microorganisms convert the student’s vegetable and paper scraps into rich fertilizer.


Which of the following best describes the role that these microorganisms play in natural habitats?

A. The microorganisms help balance the numbers of producers and consumers.

B. The microorganisms help keep nutrients cycling through the ecosystem.

C. The microorganisms turn solar energy into sugars.

D. The microorganisms function as autotrophs.

Answers

Answer:

b

Explanation:

they help keep nutrients cycling through the ecosystem now your trun give me that brainliest

The marine biologist from the nursery is planning to develop a large number of new coral polyps with large stinging tentacles. Identify the type of reproduction the marine biologist should use to develop the new coral and explain why this type of reproduction is preferable.

Answers

Answer:

Sexual reproduction.

Explanation:

Sexual type of reproduction used by the marine biologist in order to develop the new coral because variations in an organisms only be done with sexual reproduction. For producing new type of coral, the type of corals should be fused together in order to gain the desire characters in the organisms. So if the marine biologist want coral polyps with large stinging tentacles, sexual reproduction is the only way. From asexual reproduction, the offspring produce identical to parents so that's why we can't use asexual reproduction.

Balanced chemical equation for ethanoic acid​

Answers

Answer:

Ethanoic acid (CH3COOH) belongs to the group of carboxylic acids and is commonly called as acetic acid.

What is the sentence stem cell?

Answers

Answer:

Sentences Mobile

Stem cells in embryos generate all other tissues in the body. Opponents say the use of embryonic stem cells would encourage abortions.

Explanation:

Sentences Mobile

Stem cells in embryos generate all other tissues in the body. Opponents say the use of embryonic stem cells would encourage abortions.

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