Answer:
6CO2 + 6H2O — > C6H12O6 + 6O2.
every cell in our body contains Dna
Amines, these are simple molecules.
proteins and peptides which are made from chains of amino acids.
steroids which are derived from cholesterol.
That’s the way girls and boy hormones differ
No Spanish sorry about that
Answer:
The correct answer is - option B. They are small because they lack a nucleus.
Explanation:
Red blood cells or erythrocytes are specialized cell that produce in bone marrow and have specific role such as carrying oxygen from lungs to deliver it to the various organs and carry out carbon dioxide.
In mammals these cells lack cell organelles such as nucleus and mitochondria, a major factor that determined its smaller size. The size of RBC are move through narrow vessels throughout a organism because of its specific size and shape that provide it space for hemoglobin and allow to be flexible and bend to move through narrow vessels.
Thus, the correct answer is : option B. They are small because they lack a nucleus.
