"<span>Female cones produce pollen that is trapped by the male cones’ scales" is the one among the following choices given in the question that is true of conifers. The correct option among all the options that are given in the question is the fourth option or the last option. I hope the answer helps you.</span>
The two-layered sac surrounding the heart is the pericardium.
Hope this helps!
It would be x and y chromosomes
