That would be living things.
Because...
Biosphere= living things
Lithosphere= land
Hydrosphere= water
Atmosphere= air
Answer:
B
Explanation:
Nucleobases, also known as nitrogenous bases or often simply bases, are nitrogen-containing biological compounds that form nucleosides, which in turn are components of nucleotides, with all of these monomers constituting the basic building blocks of nucleic acids.
Answer:
internal urethral sphincter.
Explanation:
I think that the answer is b) radiation