Answer: Purpose
Explanation: If you have no purpose or inclination to have a hypothesis, you wouldn't have a hypothesis in the first place. Plus, it can't be experiment because there isn't anything to experiment without a hypothesis. The analysis is, well analyzing your data to see if your hypothesis is realistic. Definitely, not conclusion. <span />
Drinking through a straw shows fluid flowing from high pressure to low pressure in 2 ways. The first is how it shows high pressure as you stuck on the straw. This increases the pressure and brings the fluid to your mouth. If this pressure is kept you can successfully pick up the straw filled with water and have none come out. This demonstrates low pressure when you stop ducking and the fluid falls back down the straw into your cup.
D. Fossils
adaptions, mutations, and traits are all characteristics, not actual remains
D, because skin tans to help us stand being in the sun without getting burned.
An example of physiological adaption is being able to digest milk. Before, humans were not able to digest milk before we developed enzymes that now make us have the ability to do so, thus allowing us another food source.