Answer: They do this through a process called "mutation".
It could also be genetic modification, depends on what your text or teacher teaches you tbh.
Answer:
Medicare
Explanation:
Medicare is the federal health insurance program for: People who are 65 or older. Certain younger people with disabilities.
The answer is: When students believed the exam would be implemented the following year, both the expertise of the source and the quality of the arguments equally influenced their attitudes.
This happen because the student's argument is extremely influenced by whether they could be involved in the comprehensive exam.
If the exam would be implemented in the following year, the students are very likely to face the exam themselves. This make them much more likely to have negative attitudes toward the idea.
If the exam would be implemented in the next 10 years, the students wouldn't have to face it. Therefore, their attitude would be less negative toward the comprehensive exam.
Answer:
The threat to internal validity most likely to account for this change is <u>History</u>.
Explanation:
To understad the threats to internal validity during this research, the element that has to be considerate this case is history. The event in time that occure during the experiment, was the rising of the price of gasoline per gallon. Since the research had to do with determining attitudes toward the use of alternative energy, this event of the rising of the gasoline price, is a factor that may affect the validity of the investigation. Since this can defenetly modify the real position or previews position of the subjects towards the use of alternative energy. This specific aspect definetly changes the pretests done by the researcher.