Answer:
Down (plumaceous), (insulation)
Tail (pennaceous), (flight)
Contour (plumaceous/pennaceous), (flight/insulation)
Bristle (pennaceous), (flight)
Filoplume (pennaceous), (flight)
Hope this helps! :)
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Scientific inquiry refers to the stages and processes used to explain and investigate a question or problem of a scientific nature. The nine activities that scientists engage in as a part of scientific inquiry are; observation, defining the problem, forming a study question, researching the problem, stating the hypothesis, experimenting and gathering data, analyzing the results, reviewing the findings and communicating using different format.