Answer:
Selenium mineral.
Explanation:
Vitamin E deficiency causing by the selenium mineral, not having enough selenium which is needed in our body system, this deficiency can cause many health problems. It is known as a trace mineral which is important for human health.
It may cause premature infants and develop a serious type of anemia, weak muscles and difficulties in walking, impaired coordination, & reflexes. The diagnosis of this deficiency is depends on physical examination, and symptoms.
A. To carry oxygen
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<u>ANSWER:</u>
"Publish experiment results only if they agree with current theories or public opinion" is an example of society which expects to follow ethical practices and meet many ethical standards. .
<u>EXPLANATION:</u>
- It is important for researchers to ensure that they conduct experiments on the basis of true and desirable data so that the results of the experiment can be accurate.
- Research ethics also require that experiments be undertaken only under favorable conditions and not under all circumstances.
- Sometimes, it is required not to conduct experiments and therefore researchers must refrain from the same.
- It is also essential as per research ethics for researchers to analyse data correctly and investigate all events and not only events that impact the lives and livelihood of people.
- Researchers need to conduct their experiments without any bias.
Answer:
B. Case-Control
Explanation:
A case-control is a study that compares a group with an outcome of interest (cases) with a group who do not have the outcome (controls). This study aims to looks back retrospectively to compare how frequently the exposure to a risk factor is present in each group and with that to determine the relationship between that risk factor and the outcome.
So in this case, the cases are children with pervasive development disorder and the control is those without the disorders.
These studies are normally observational because no intervention is attempted.
When animals, plants and other organisms die, they typically decay completely. But sometimes, when the conditions are just right, they're preserved as fossils.
