The bond between one carbon atom and one oxygen atom is polar but due to the fact that there is another oxygen attached to the carbon which has the same electronegativity value as the oxygen on the other side, the effect of polarity is canceled.

is non-polar because the oxygens symmetrically alligned on the opposite sides of the carbon cancel the polarity effect.
Answer:
The final sentence, It shows that Mateo needs to pump bubbles into the tank, and bubbles are just a gas trapped in a liquid, in this case, air in water. It shows that Mateo's fish needs the bubbles, which means it needs air.
Explanation:
Answer: B) Are found in all the vascular plant groups
Explanation:
Megaphylls are found in vascular plant and they are leaf structures. They undergo photosynthesis and are gotten from the euphyllophyte structures. The have many large veins that branches apart.
microphylls and megaphylls are leaf structures that have diverse anatomical structures.
Bloods pumping/flowing and more air intake/output