sure they can reproduce without seeds,example like the bird-nest fern it reproduce by spores.
Yes. If you were to look at pollen you would see that it is unique for each kind of plant.
Yes A Plant Can But It Depends On Which One Not All Of Them Can
Kaffir lime is also known as kieffer lime, makrut, or magrood, native to Indonesia but widely grown worldwide as a backyard shrub
seeds