The answer is cell membrane
Liquid 1 and 4, because they have the same melting point and density.
hot and dry
i need 20 things so this was just randomly added. hot and dry is the answer
Explanation:
Complete answer:
A mature erythrocyte lacks nucleus and mitochondria so as to make a place for the accommodation of more hemoglobin and hence more oxygen molecules. Lack of such organelles also provides the peculiar biconcave appearance of RBCs that aids in efficient diffusion. Young mammalian RBCs are nucleated.