in which of the following situations is salinity  highest?                 a.  sea ice is melting.      b.  a large river system empties into the sea.      c.  evaporation exceeds precipitation.      d.  precipitation is abundant. 

Which sentence is an example of a strong conclusion to an autobiography? a. i stayed after school three days in a row to practice onstage in the auditorium. b. i knew i would have to practice all week to memorize my dance for the recital. c. after the recital was over, i knew practicing was worth it, and i was looking forward to my next big challenge. d. on opening night, i danced in front of a packed auditorium.

Competition occurs between species when

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?