B) the selection for different shaped beaks that best suit different niches
Answer:
the two careers that don't require any college education are a dental assistant and a home health aide
Explanation:
using the process of elimination....
a dietitian requires a bachelor's degree,
physician assistant needs a masters degree (in most cases)
social worker needs a bachelor's degree
this means the other 2 remaining options...
dental assistant & a home health aide do not require a college education
Cohesion.
Water molecules tend to stick to each other; once a few molecules are drawn up through the filter paper, more molecules will follow.