Dextran is used in

Assertion: The regulation of $RBC$ production is accomplished by $FSH$.
Reason: Erythropoietin hormone circulates to red bone marrow where it increases stem cell mitosis and speeds up the development of $RBCs$.

Biological marriage of one of the following should be avoided:

$A$ person meets with an accident and a great loss of blood has occurred. There is no time to analyze his blood group. It is safe to transfuse blood of group:

Does our blood have proteases and nucleases?

Choose the correct statements regarding human blood:
$I$. The volume of blood in an adult is $5 \; L$.
$II$. It constitutes $30-35 \; \%$ of the total extracellular fluid.
$III$. Glucose concentration in the blood is $50 \; mg / 100 \; mL$.
$IV$. Cholesterol concentration in the blood is less than $200 \; mg / 100 \; mL$.
$V$. Urea level in the blood is $10 \; mg / 100 \; mL$.
The option with correct statements is: