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Answer:
A butterfly undergoes a process called complete metamorphosis during its life cycle. This means that the butterfly changes completely from its early larval stage, when it is a caterpillar, until the final stage, when it becomes a beautiful and graceful adult butterfly.
Answer:
longitudinal study
Explanation:
Longitudinal studies are typically observational studies, as they are usually limited to observing the sample elements without manipulating factors that may alter the variables of interest. For example, to verify the effectiveness of a treatment for posttraumatic stress disorder, researchers can analyze the psychological status of the study subjects before and after treatment. This is because a longitudinal study is one that evaluates how the variables behave in the research participants over a given period of time.
Another example of this type of study is what is happening to Alice, where researchers ask her to answer a questionnaire each year so they can assess how her attitudes and preferences have changed over the course of a year.
Answer:
Observational study/The sample is too small
Explanation:
The study is observational since there is no attempt to modify nor apply any kind of treatment.
An important problem in this study is the quantity of the sample. It is explained that the research selected only 8 individuals, which is not a significant sample. The minimum number of samples should be at least 30.
