"The energy necessary to perform this function comes directly from the
(1)exchange of H2O and O2 during respiration
(2)blood flowing through the organs
(3)ATP molecules produced during cellular respiration
(4)water that is eliminated by the organs"

it has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedit has 2 cells

hope this helpedv

more words for this could be abiotic and biotic

abiotic: living organisms within an ecosystem

biotic: non-living organisms within an ecosystem