Refer to the given dichotomous key and select the correct statement.
(i) (a) Single parent is involved in reproduction- Go to (ii)
(b) Two parents are involved in reproduction- Go to (v)
(ii) (a) New plants are produced by natural method- Go to (iii)
(b) New plants are produced by artificial method- Go to (iv)
(iii) (a) Plant produced through the stem– P
 (b) Plant produced through root- Q
(iv) (a) Plant produced from unorganised cell mass– R 
(b) Plant produced by bending young branch towards the ground and covered with moist soil- S
(v) (a) Plant produced when pollen grains are transferred to the stigma of same flower of the same plant- T
(b) Plant produced on transferring pollen grains to the stigma of different flower- U

Refer to the given figure showing three parent species, X, Y and Z (in plot I) and their respective seedlings after dispersal (in plot II).

Select the incorrect statement regarding species X, Y and Z.
(i) X could be pea plant in which fruits burst open forcibly after drying.
(ii) Y could be Xanthium in which seeds are hooked i.e., have spines.
(iii) Z could be Acer in which fruits and seeds have wings or hair like structure.
(iv) X could be coconut, Y could be lotus and Z could be Calotropis.

Refer to the given figure and select the correct statement(s).

(i) The part labelled as P gives rise to fruit.
(ii) The part labelled as R is responsible for transfer of female gamete.
(iii) The part labelled as Q transforms into endosperm.
(iv) The part labelled as Q is a female gamete.
(v) The part labelled as R carries pollen.