Answer:
A). Organisms within a population compete with each other to survive.
Explanation:
Charles Darwin in his evolution theory proposed that the organisms of all species emerge and develop via the 'natural selection' of tiny, inherited discrepancies and these disparities enhance the individual's ability to contest and compete with each other in order to survive and reproduce to continue their existence. This led to the emergence of the phrase 'survival of the fittest' which suggests that in this competition of 'natural selection', only the fittest will survive. Thus, <u>option A</u> is the correct answer.
Answer: i don`t know that much but
Explanation: if the magnetic field of the earth is decreasing year by year at one point it would be so weak that everything on earth would float here and there. the ocean of the earth would also float and as the ocean is one third of the earth the most of the earth would be covered in just floating water.
The options would be Diagnostic testing , Carrier testing,,prenatal test ,preimplantation testing .
<h3>What are the benefits of genetic testing ? </h3>
Genetic testing is useful in many areas of medical and can change the medical care of family.
By genetic testing we can predict the diseases earlier like cancer development , mutations in body etc.
1) Diagnostic testing if you have symptoms due to mutation,genetic testing would reveal the disorder .
2) Carrier testing if your family history tells the diseases like cystic fibrosis, sikle cell anemia, then you can have this disorder also.
3) Prenatal test is used for pregnant women to detect the abnormalities in your baby. Like down syndrom, pheylketonuria .
4) Preimplantation testing helpful for those couple who are sterile or not able to conceive.
To learn more about the Genetic testing click here brainly.com/question/4076825
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C. prokaryotes do not have a well defined nuckeus
Answer:
The nitrogen cycle could not exist without first nitrogen. The cycle is about this specific element which goes to show that if this element is not present then, there will not be any nitrogen cycle. Also, an important factor for the cycle is the presence of the bacteria and other microorganism which are needed for the fixation.
