STD 11 - 2. Biology classification — BIOLOGY STD 11 Science — Question

$II.$ $p CO _{2}$ is low and $p O _{2}$ is high in tissues

$III.$ $RBC$ contains a very high concentration of carbonic anhydrase

$IV.$ Every $100\; mL$ of deoxygenated blood delivers approximately $4\; mL$ of $CO _{2}$ to alveoli

Select the combination of right statements

$I.$ Kidneys are reddish brown and bean-shaped structure

$II.$ Kidneys are situated between the last thoracic and third lumber vertebra

$III.$ Each kidney of an adult human measures $10-12\, cm$ in length, $5-7\, cm$ in width, $2-3 \,cm$ thickness, and average weight $120-170$ $gram$