Refer to the given dichotomous key.
I. (a) Plant reproduces through seeds. – Go to II
(b) Plant reproduces through other parts.
– Go to III
II. (a) Seeds have wings or hair-like structures for
dispersal. – P
(b) Seeds have hooks or spines to stick to animal
fur. – Q
III. (a) Plant reproduces through underground stems.
– R
(b) Plant reproduces through tiny structures called
spores. – S
Select the correct statement regarding P, Q, R and S.
A P could be Xanthium while Q could be dandelion.
B R could be potato while S could be fern or
moss.
C P could be dispersed by water while Q could be
dispersed by the explosion of the fruit.
D R could be Bryophyllum while S could be
coconut.
It is very complicated