Conifers

Conifers

A) have a highly modified ovule-bearing structures or cones, which also contain the pollen grains.
B) have pollen grains with s distinctive wall structure unique to conifers.
C) enclose the ovules within a hollow carpel in the cone.
D) are the most diverse and widespread of the living non-flowering plants.
E) have microsporangia which secrete a sticky drop of fluid that aids pollen dispersal and fertilisation.