Model Paper 2 — BIOLOGY STD 12 Science — Question

A pregnant woman who has done aminocentesis test finds an extra Barr body in her embryo. The syndrome which is likely to be associated with the embryois

Which of the following is/ are example(s) of man-made ecosystem?

The Leydig’s cells as found in the human body are the secretory source of

The declining phase of a population occurs when

The edible part of coconut is :

The functional unit of ecology is the

Composition of semen is

Citric acid is prepared from-

The organisms, which attack dead animals are