Answer:
The cornea is the only part of a human body that has no blood supply but gets oxygen directly from air
Keto acid.
Hope this helps :)
I think that the haploid organisms can NOT avoid the negative effects of nonfunctional alleles. This is because there is only one allele for the gene in each cell, and therefore the nonfunctional allele has no other allele to mask it. Haploid cells are those cells that contain only a single number of alleles (n) unlike diploid cells which contain a pair of alleles (2n).
It's the amalyse that digested the food or starch in out mouth. Amalyse is an enzyme that is responsible to break down the starch in to sugar. Usually, it is present in our saliva, this is where the digestion started then next to our stomach.
Melatonin (<span>also known as N-acetyl-5-methoxy tryptamine)</span>