What does a decrease in the number of blood platelets lead to?

What does the hematocrit value indicate?

During the process of blood clotting,what does Vitamin $K$ help in?

What is the percentage of the white blood cell shown below in the blood?

What are Formed Elements?

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: