Pine trees have seeds in the cone. Ferns are the only plants that I can think of off hand that have spores (I'm sure that there are more out there). Otherwise, if it is a natural plant, one that was not created from grafting/hybridization and so on, it has seeds.
The Plants Kingdom. It has has roots, a stem, Branches & green Leaves !
Pine trees go into dormancy in the winter time, storing nutrients in the trunk and roots. Their leaves are kept and because the surface is smaller than most leaves, they don't freeze and die.
pine cone
Sea weed has no stems where as a pine does.
Roots.
Roots
No, Pine Trees have pine needles, not leaves
Porcupines are vegetarians. They eat tree bark and on spring evenings they eat grass. They also eat leaves, stems, fruits, seeds, roots, berries, nuts, and flowers in the summer. In the winter they eat bark and pine needles. Additionally they eat salt when ever they can find it. hope this helps you out :)
The roots of pine trees typically extend about 12-24 inches deep into the soil.
All pine trees have flowers but they are insignificant.
Pine needles.
Yes - the 'needles' of pine trees are their actual leaves.