Question

Name the following :
(i) Hereditary congenital defect caused due to the absence of both B and
T cells.
(ii) Blood vessel that brings deoxygenated blood from the lower parts of
the body to right auricle.

Answer 1

I don't know 1

Explanation:

2. It may be veins or pulmonary artery.

Sorry I don't know because I am just 7 th