Insect populations can develop resistance to insecticides over time. The evolution of resistance is associated with an increase in the frequency of adaptive genes in the population.
- In the case above described it is expected that a few mosquitoes in the population were resistant to DDT before it was ever used (Option a is correct).
- Dichlorodiphenyltrichloroethane (DDT) is a pesticide used in agriculture.
- After exposure to DDT, those individuals in the mosquito population that didn't carry gene variants (i.e., alleles) associated with the resistance to this pesticide died.
- Subsequently, insects having adaptive alleles associated with DDT resistance survived and reproduced, thereby increasing the frequency of adaptive genes/alleles in the population.
Learn more in:
brainly.com/question/6389591?referrer=searchResults
The answer is orange, this is because when it is cold the leaves start to die and turn orange or red
Testes and ovaries are similar because hey are the same in that most of the reproductive organs of both sexes develop from similar embryonic tissue, meaning they are homologous. Both systems have gonads (male have testes and female have ovaries) that produce gametes (testes produce sperm and ovaries produce egg or ovum) and sex organs.
Answer:
An interesting episode of the aquarium I had was seeing a dolphin show. The dolphin was super smart, and I have to admit it was smarter than me. I mean I was like 3 when I went there so, I guess that is normal? Anyways, the dolphin was doing cool tricks like twist jumping, and even I tried it but failed. The dolphin went to the worker when the worker called its name. I learned that day that you shouldn't underestimate dolphins because they are smart.
Explanation:
This is an example, so do not copy. You may get inspired.
1 sentence:introduction(aka what you liked or found interesting stuff about the aquarium)
2-4 sentence:the main area(talking about what happened)
1 sentence:conclusion
Dimorphic, polymorphic, and continuously variable traits are distinguished as follows:
- Dimorphism is the condition of those<em> species</em> of animals or plants that exhibit two anatomical aspects or two different forms.
- When talking about polymorphisms in genetics, reference is made to the different variations that may exist on the DNA of the same gene.
- Continuously variable traits are those that show a continuous distribution of phenotypes.
Therefore, we can conclude that dimorphism is a polymorphism with only two forms, the polymorphism is any stable change of the DNA fixed in the population and in continuously variable traits the phenotypes show a continuous series and cannot be easily grouped.
Learn more about polymorphic traits here: brainly.com/question/7882029
