Answer:
Immigrants may be defined as the individuals that comes from some other country but are the permanent resident of some other country. The individual might move for the jobs and education.
The immigrants might flock to the urban neighborhood and can settle on the basis of the their ethnicity. These neighborhood provide jobs to the immigrants and they had poor working conditions. The immigrants were underpaid. The mutual aid societies are formed in which immigrants pay dues and and the society pay for their elevation. The Americans and immigrants suffers from the pollution, crime and overpopulation.
Answer:
K I'm not sure about this one, but it should be capillary action
Explanation:
This is because cohesion and adhesion have to do with water stick to surfaces. Capillary action occurs because of how the water sticks and bonds to certain surfaces. Cohesion is how water molecules stay together, while adhesion is how water molecules are attracted to other molecules.
Answer: c. Prospective cohort study
Explanation:
Prospective cohort study is a type of observational study which is used to study large number of subjects which are similar but vary with respect to certain factors required to be considered under the study. This is done to determine how these factors affect the rates of certain outcomes. The subjects are studied under different frames.
Here, in the given study the subjects are the same which is a group of middle aged men. These are at a risk of premature ventricular contractions thus are at greater risk of myocardial infraction as compared to men those heartbeats are regular. Here there are different factors to be observed upon and the subjects are also studied in different time frames thus this condition is an example of prospective cohort study.
Answer:
Antigens activate specific lymphocytes
Explanation:
The clonal selection theory (also named the theory of antibody activation) is used in inmunogenetics to understand the functions of the lymphocytes in the immune system. From this theory is it possible to understand the vast diversity of antibodies in the blood during the initiation of the immune response
If you're talking about the process that's called hydrolysis because you're adding water OH + H
