Answer: observation
Explanation: scientific method is the process which scientists use to provide an accurate and reliable explanation to a phenomenon.
It usually involves the observation and description of a occurrence,the formulation of hypothesis to explain the occurrence and then experiments to test the accuracy of the hypothesis.the experiments may prove the hypothesis right or prove it wrong,in which case the hypothesis may be modified or discarded.
In this case the farmer has noticed the yields in his crops and he might bring an explanation(hypothesis) that seems reasonable to him and will have to test the hypothesis to verify it.
Sickle-cell anemia is a disease that is caused by a mutation in the beta-globin chain of the protein, hemoglobin.
<h3>What is sickle cell anemia?</h3>
Sickle cell anemia is a disease caused by a mutation in the beta-globin chain of the protein hemoglobin.
The mutation occurs on the beta-hemoglobin gene found on chromosome 11.
In sickle cell anemia, the red blood cells have as sickle shape and are unable to transport oxygen effectively in the body.
Therefore, sickle-cell anemia is a disease that is caused by a mutation in the beta-globin chain of the protein, hemoglobin.
Learn more about sickle cell anemia at: brainly.com/question/904630
I always trip and fall ao thats pretty embarrassing
Answer:
Could you clarify the question a little more, do you want the order from oldest to youngest. Or do you want just the oldest part and the youngest part of the brain?.
Explanation: