It conserves fossil fuels. The other options are disadvantageous
Aside from its nitrogen bases, all nucleotides are similar. The bases will either be adenine, cytosine, guanine, uracil, or thymine.
Estrogen and testosterone are non polar in nature.They can easily pass the cell mambrane which is made up of lipid bilayer.After entering the cell they bind to their intracellular receptors present in the cytoplasm.
The receptor hormone complex moves to the nucleus and perform transcription and later on translation of desired proteins.
Estrogen helps in the functioning of reproductive system as it supports growth and differentiation.Whereas testosterone is important for sertoli cells which help in the process of spermatogenesis i.e formation of sperm.
I think its Multicellular Organisms,., i could be wrong
