Answer:
A simple microscope
Explanation:
Because it only has a single lens
A layer of ice on the surface keeps the water temperature warmer than the air temperature.
The four muscles of the rotator cuff are the supraspinatus, infraspinatua, teres, and subcapularis. Hope this helps!
<span>B) He noticed four-fifths of the air had been used up. If by air this question is referring to oxygen, the fact that it has been used up means it has reacted, mean a substance has combusted.</span>
This is called passive immunity. Passive in such a way that the vaccine came from another human blood plasma which contains antibodies that temporarily combats disease-causing virus/bacteria. Vaccination with gamma globulin transiently boosts patient's immunity against illnesses or diseases.