The answer is capillaries.
The answer to the question is "4 chromosomes".
The genes that code for a hemoglobin is found on 4 chromosomes. Two of this code is for the alpha globin while the remaining two genes that are code is for the beta globin.
The correct answer is that the shells of clams and other mollusks dissolve when the pH becomes more acidic.
This is because the shells of clams and other mollusks are made of calcium carbonate that is dissolved in acidic conditions. The pH needs to be low to dissolve calcium carbonate into it. It takes few days to dissolve the shell completely.
False I took the test and I got it right hope it helps
