They are useful for scientists to seperate genus and species
Obsolete.
Harmful bacteria will harm you. Helpful bacteria will help you.
It is helpful for when you walk .
Studies like this one (http://www.ncbi.nlm.nih.gov/pubmed/10648452) indicate that it could be helpful by relaxing the LES. However, I did not find it particuarly helpful when I took it.
There are many characteristics that can be seen of useful information. Useful information is something that is helpful or relevant.
Useful means to have something or use something which is helpful or handy like for example, you would use a rubber if you wrote the wrong word down or if you stained a T-shirt vanish would be useful!
Helpful is a word that describes something that is useful and gives aid. The opposite of helpful would be unhelpful, useless, destructive, damaging, worthless, or hindrance
A phase converter is something that will convert a phase that you do not understand into something that is easily understandable to you. They are very useful and helpful to those that need them.
um... I'm pretty sure it's more helpful and the most helpful?
A word that means, be of use would be; helpful, useful, needed
Yes. Something that isn't useful to you could be useful or helpful to someone else. It's much better than just throwing things away!
Helpful
it is helpful for any kind of emergancy but not, apparently, helpful with spelling
NO, they are very useful and helpful.
The comparative to useful is more useful. Though a few synonyms are handy, helpful, effective, profitable, proper, and practical.
renewable resources are helpful to mankind because we can reuse it but we have to use it wisley that is why it is helpful to mankind