Simple but very simple question. Cellulose.
Answer:
It is B, data.
Explanation:
Data is what you collect from an experiment.
Global warming causes increase level CO2
The correct answer is D. The theory of natural selection provided a better explanation of the processes that were being observed by the scientists.They observed that the related species birds found on one island were slightly different from that of the other, and certain portions earth, have the species, which were not found anywhere else.
Answer:
to see if there is any brain or nervous system problem
