Those that help us live.
no
Reptiles are animals classed as cold-blooded as, unlike mammals, they can't produce their own body heat. Snakes, for instance, become very torpid (sluggish) in cold weather, and need to be warmed in the sunlight before becoming active.
Yes a C9a can be used to kill small game. The kill ratio is up to you and how good a shot you are. The best shot is a head shot with hunting pellets for a quick kill.
Most useful and more useful.
more useful, the most useful
The comparative form of "useful" is "more useful."
more useful, most useful
Computers are so useful to us.Bert is not a very useful person.I find that the phone is a useful invention.Make yourself useful and pass me the spanner.Hopefully these sentences are useful to you.
how are mirrors useful ? how are mirrors useful ?
more useful, most useful
more useful and most useful
Not to sure if this is what your looking for try this link http://www.blm.gov/pgdata/etc/medialib/blm/wo/Planning_and_Renewable_Resources/veis/final_eis_vol_2/final_eis_appendixes.Par.22192.File.dat/Final%20PEIS%20Appendix%20A%20-%20Scientific%20Names%20(June%202007).pdf