Gills would be the most common sense answer. I took the test and it was correct.
Answer:
i think it is the second answer
Explanation:
Answer:
The correct answer is the second option
Explanation:
Answer:
I dont known maybe that using fossil fuels pollutes the environment but the biofuel is environmental friendly something like that
Food chewed by teeth breaks into small pieces, and is mixed with saliva during chewing.
