Answer:
Carbon dioxide , sweat , urine , bile
Explanation:
Carbon dioxide=lungs
sweat=skin
urine=kidney
bile=liver
Multiple alleles. As different blood types can be determined by 2 different alleles
The pair of elements which would likely have similar valency and similar chemical behavior is BORON AND ALUMINIUM.
Both boron and aluminium have three electrons in their outermost shells. The possession of the same amount of electrons in their valence shells will make the elements to behave in the same manner chemically in term of bond formation and chemical reactions.
