Question

Pinus is a gymnosperm because it-
a) Bears pollen grains
b) Is a large tree growing in colder areas.
c) Lacks ovary but possesses exposed ovules.
d) Possess vascular tissue

Answer 1

A pine is a species of coniferous tree of the genus Pinus. It is a member of the Pinaceae family. Pine trees have $126$ species accepted in the royal botanical gardens, Kew, and the Missouri Botanical Garden, as we have seen numerous times. It has $35$ species that are still nameless or unresolved. Pine can also refer to the wood harvested from pine trees. Pine is one of the most often utilized forms of wood for timber production.

Complete explanation:
Option A: Bears pollen grains- The seed of pine is found inside the cone on the upper surfaces of the cone scales. The seed has fallen from the open cones. Hard Testa, thin tegmen, endosperm, embryo, and cap-like perisperm make up the mature seed of Pinus. The embryo includes a short axis bearing ten cotyledons. Therefore, Pinus seeds have polycotyledons.
So, option A is not correct.
Option B: is a large tree growing in colder areas- In other trees the cones remain closed for days and years and years until some environmental cue triggers the cones to open releasing the seeds. This is called Serotines.
So, option B is not correct.
Option C: lacks ovary but possesses exposed ovules- Pine trees possess both male and female reproductive structures or cones. Female cones have two seeds on each fertile scale when they reach maturity. Seeds are held inside cones. The seeds are mainly small and winged, and they are anemophilous, meaning they are scattered by the wind, but some are larger than typical and only have a vestigial wing, and they are dispersed by birds. Female cones are woody and occasionally armed to keep intruders away from maturing seeds.
Option C is correct.
Option D: possess vascular tissue- pine possess vascular tissue. As we know, pine trees reproduce by producing seeds. Pine seeds are found on scales of structures called cones, unlike the seeds of other deciduous trees, which are surrounded by fruit. Pine cones are what they called.
Option D is not correct.

Hence, Option C is the correct answer.

Note:
Pines utilized and appreciated timber and wood pulp extraction all over the world, and they have a wide range of economic and cultural functions. Also pine wood has high value in carpentry items, furniture and the resins of some species are used in making turpentine. Many pines are used as ornaments, such as in Christmas tree decorations. Pine needles are also a food source for Lepidoptera. Large seeds called pine nuts are gathered and cultivated from several pine species for help in cooking and baking. Pines are also used as medication in nations such as China.