Students in that area measure the air temperature during the day and notice that the air over the land is much warmer than the air over the water. During the day, the students most likely observed the wind blowing in which
direction?
South to north

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

sex cells are usually half's then they find another half and make a fertilize egg

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.