By tar, I think you mean nicotine. (I Hope). It affects the nerve signals that regulate breathing.
Answer:
none of the above
Explanation:
input would be carbon dioxide and output would be oxygen
Answer:
A lipid containing a phosphate group in it's molecule is known as phospholipid.
Explanation:
For example : phosphatidylcholine.
Well a,b and c are plants
But d) Zooplankton is a type of animal and does not belong at the bottom of the pyramid.
Good luck! (:
Answer:
C.
Explanation:
All living things are made of cells.
