Answer:
Testable prediction that gives direction to research.
Explanation:
A hypothesis is an explanation that can be accepted in a provisional way, but has the objective to provide sufficient guidance for further investigation.
It is also considered testable because it can be proven right or wrong, it means it is possible to be verified.
Answer:
Vaccines have been around since 1796 preventing people from diseases and decreasing death rates. I believe due to the modern vaccines and medicine people have been living longer than life expectancies in the 1700's and 1800’s, which was between 30 and 40 years. Vaccines train the human body to recognize viruses or bacteria and the antigens (molecule capable of inducing an immune response) will start attacking the virus or bacteria before it tries to spread and cause sickness once it is has recognized it. However, vaccines are not always 100% safe because they can come with side effects. For example, the Hepatitis B vaccine had a severe allergic reaction, called anaphylaxis which caused difficulty breathing, dizziness, and skin rashes for a few people.
Answer: b. modifiable risk factors
Explanation:
Modifiable risk factors are those factors which are associated with unhealthy lifestyle and they can be directly related to the development of disease and these can be fatal if the factors are not avoided or modified. The examples of modified risk factors include tobacco and alcohol consumption, excess weight gain, unhealthy eating habits and physical inactivity.
Thus the focus of health promotion and disease prevention efforts should be directed to the modified risk factors as these can be reduced, avoided and prevented to support good health and promote disease free life.
