Corn earworm is a caterpillar-like worm that can destroy corn crops if it's population is not controlled.Suppose a population of corn earworms is sprayed with pesticide for the first time. The population includes organisms that vary in their susceptibility to the pesticide.How natural selection most likely alter the earworm population over time
-over each subsequent generation a greater percentage of the earworm population will be resistant to the pesticide,until the pesticide is ineffective.
-the initial spraying will destroy the earworm population,but the earworms will return each growing season unless the pesticide is used every year.
-the pesticide will alter the DNA of the earworms, making all members of the population resistant to the pesticide within one generation.
-the pesticide will have to be sprayed in larger quantities every year to destroy the same number of earworms.
PLSS HELP!!
Corn earworm has become resistant to many insecticides, meaning that no matter how much you add each year, it will not be able to tolerate the pesticide. Additionally, the best way to stop earworms is to dab a bit of vegetable oil on the silks of each corn ear to discourage corn earworms from crawling inside. Cut and destroy all corn stalks in the fall to prevent the insects from overwintering in them.
Regardless, this is the answer to your question:
over each subsequent generation a greater percentage of the earworm population will be resistant to the pesticide, until the pesticide is ineffective.
As stated above, the earworms will become resistant and the pesticide will be useless/ineffective.
Where is the question???
The first paragraph
Pls someone answer
Study question you are a life saver , could you help me with a few other questions because I been stuck on these
In this scenario, the most likely outcome is that over each subsequent generation, a greater percentage of the earworm population will be resistant to the pesticide, until the pesticide becomes ineffective. This is because the initial spraying will most likely kill off the more susceptible individuals, leaving behind only the ones that have some level of resistance to the pesticide.
Here's the explanation:
1. Pesticide resistance is caused by genetic variation: Within the initial population of earworms, there is likely to be genetic variation. Some individuals may already have a natural resistance to the pesticide, while others may be more susceptible. This is due to genetic variation that exists within the population.
2. Initial spraying eliminates susceptible individuals: When the population is sprayed with the pesticide, it will kill off a significant number of individuals, mainly those that are more susceptible. However, individuals with some level of resistance will survive.
3. Resistant individuals pass on their traits: The surviving resistant individuals will then reproduce and pass on their resistance traits to their offspring. This means that in the next generation, there will be a higher percentage of earworms with resistance to the pesticide.
4. Repeat the process over multiple generations: As the resistant individuals continue to reproduce, their offspring will inherit their resistance traits. With each subsequent generation, the percentage of the earworm population that is resistant to the pesticide will increase.
5. Pesticide becomes less effective: Eventually, if the same pesticide is continuously used, the effectiveness of the pesticide will decrease over time. This is because the greater proportion of resistant individuals will survive and reproduce, leading to a larger population of resistant earworms.
It is important to note that this process may take time and the exact rate of resistance development can vary depending on several factors, such as the initial genetic variation, the selection pressure exerted by the pesticide, and the reproductive speed of the earworm population.