Answer:
a. Aging
c. Heredity
d. Crohn disease
e. High-fat diet
Explanation:
Colon cancer involves the abnormal growth of cells in the colon found in the large intestine.
Colon cancer is found to be hereditary in about 10 percent of patients .
It is also common with individuals who are used to taking high fat diets and affects most people older than 50 years old.
Crohn’s disease is also found to be a risk factor for having colon cancer.
B. Embryos are being collected by the student on the field trip.
Hot temperatures, natural disasters, agriculture, urbanization, etc.
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Some of the aspects that help you determine whether a study is rigorous are questions and hypotheses that can be answered, adequated method use, and bibliography.
Rigorous is a term that refers to a quality that focuses on accuracy and precision to comply with norms, precepts, and pre-established rules. This term is widely used in science to refer to the precision of a study or investigation.
Therefore, when it is established that a study is rigorous, its attributes must be taken into account, such as:
- Questions and hypotheses that can be answered: This aspect refers to the investigator having the ability to limit his study so that it is appropriate to do so and does not include too much information that makes his study "impossible".
- Adequated methods use: This refers to using the appropriate methods to reach feasible conclusions, for example, methods of observation, deduction, induction, among others.
- Bibliography: This refers to the research or study being supported by reliable sources so that it is as accurate as the information it provides.
Learn more in: brainly.com/question/14617975