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phloem - this is the vascular tissue found in plants which conducts sugars and other important metabolic products downward from the leaves.
Club mosses- these are low-growing green plants which resemble large mosses, and have branching stems covered with undivided leaves.
Ferns- these are flowerless plants that have feathery or even leafy fronds and they reproduces through spores that are released from the undersides of the fronds.
Horsetails- they are nonflowering plant with hollow jointed stem and bears whorls of narrow leaves,that produce spores at the tips of the shoots.
pollen- is a fine powdery substance, consisting of microscopic grains that are discharged from the male part of flowers or from male cones. Each grain has a male gamete used to fertilize the female ovule, through which pollen is transported by the wind, insects, or even other animals.
Pollination- is the process through which pollen is transferred from the anther of male plant to the stigma of the female plant, and hence enabling fertilization and reproduction.
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