It is important for a food business to keep out flying insects. screens on kitchen doors can be very effevtive as long as the screen mesh is the right size, there are no tears and

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .

more words for this could be abiotic and biotic

abiotic: living organisms within an ecosystem

biotic: non-living organisms within an ecosystem