Abiotic refers to NONLIVING things. Such as rocks..
Sooooo it would be water because although there are so many living things in water the actual chemical compound of H2O is nonliving.
C
Abiotic factors are factors that include non-living parts of the environment which could be significant or essential to living organisms. Water is a non-living environment and it helps in giving life to plants and other organisms. Thus deemed abiotic.
excretory system: removes waste from blood.
respiratory system: obtains oxygen so the energy in the nutrients can be extracted.
circulatory system: transports nutrients from small intestine to the othet tissues.
nervous system: regulates and controls digestive functioning.
( Am not completly sure, but i think this is the answer)
Each cell contians 23 pairs of chromosomes
