Last question on test. 50 points ! you decided to go hiking. as the trail grows steeper, your breathing becomes heavier. explain what is happening at the cellular level.

well, as you go higher,the oxygen molecules are less up there so you need to breath in more to get the same amount of oxygen you got when you were lower

example, lets say at sea level you get x cups of oxygen per breath

but at 1000 meters above sea level, you get 0.5 cups of oxygen per breath

you would need to breath in twice as much to get the same as much oxygen

and you need oxygen to move and live and be alive

hi there!

answer: b. nucleolus

explanation: nucleolus is a structure in the nucleus are ribosomes are made.

hope this you!

have a nice day! : )

: d

-charlie

you! : )

: d

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.