Secondary wood of $Cycas$ is devoid of

Choose the correct option for Gymnosperms.
Fertilization $\quad\quad$ Endosperm

Given below are two statements:
Statement $I$: In gymnosperms, the male and female gametophytes remain within the sporangia.
Statement $II$: In gymnosperms, seeds are not covered.
In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following is a living fossil?

In gymnosperms,the microsporophyll can be compared to which of the following?

Which one constitutes the dominant vegetation in colder regions?