STD 12 - 4. principal of inheritance and variation — NEET STD 11 Science — Question

$1.$ primary treatment of sewage

$2.$ secondary treatment of sewage

$3.$ anaerobic sludge digester

$4.$ production of bioactive molecules

$I.$ Oxygen is carried by haemoglobin

$II.$ Oxygen is carried by carbonic anhydrase

$III.$ $C O_{2}$ is carried by haemoglobin

$IV.$ $SO _{2}$ is carried by haemoglobin

$V.$ Only oxygen is transported by the blood

$VI.$ Only $C O_{2}$ is transported by the blood

Choose the correct option