D is the correct answer. (Panting in a dogs increases the amount of cool air in nasal passages and lowers body temp).
Function to produce force and motion. They are primarily responsible for maintaining, changing posture, locomotion. Also movement of internal organs, such as the contraction of the heart and the movement of food through the digestive system.
B. the fact that they breed plutonium when U-238 is converted to Pu-239
Chromium is already being used in the medicine industry to treat cancer (ovarian cancer in the form of chromium phosphate). So chromium may be used to build the efficiency of cancer treatment and make it more cost-efficient.
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Answer:
c2h4o
Explanation:
empirical formula is simplest whole number ratio of atoms in molecule
SINCE RATIO OF C,H O IS:
C : H : O
4: 8 :2
SIMPLEST RATIO ( DIVIDING BY 2)
2: 4: 1
C2H4O