Answer:
The correct answer is The study has a problem with the External validity
Explanation:
External validity in research terms is the validity the research has in the outside world or in the applied social reality of the field of study, it is the extent in which the results and conclusions of the study can be applied and generalized to ohter external factors, therefore in this case, when the researchers did the experiment only with motivated volunteers did not take into account that people outside may not have the same motivation, therefore the results may not be the same in the external social reality and thus having problems with the external validity.
Prenatal Exposure to Air Pollution and Early Life Stress Effects on Hippocampal Sub regional Volumes and Associations with Visual-Spatial Reasoning may lead to severe complications like brain-derived neurotrophic factor.
<h3>
What are the Effects on Hippocampal Sub regional Volumes?</h3>
- The hippocampus is also changed by exposure to air pollution, with various effects seen in different hippocampal subfields.
- Following perinatal air pollution exposure in animal models, decreased structural integrity throughout the hippocampus, decreased neurogenesis in the dentate gyrus, and activated microglia in the dentate gyrus and CA1 subfields have all been noted.
- It has been demonstrated that prenatal exposure to PM2.5 is followed by decreased hippocampus brain-derived neurotrophic factor (BDNF) expression and decreased dendritic branching in the CA1 and CA3 subregions.
- In the past, studies on humans have also concentrated on polycyclic aromatic hydrocarbons (PAHs), a class of air pollutants produced by incomplete combustion of organic materials and cigarette smoke, grilling, oil- and coal-burning power plants, and vehicle emissions.
To learn more Prenatal Exposure from the given link
brainly.com/question/7635526
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The
correct option is C.
When
governments may step in to resolve the market failure, the allocation of goods
and services by a modern mixed economy is not efficient.
<span>Because
they think that there assistance by putting legal maximum price that is price
ceiling, and legal minimum price that is price floor, will be helpful but
instead of this these prices just caused damage to individuals.</span>
