During self-pollination in seed plants, pollen grains must be carried from a male cone or flower to a female cone or flower.
Explanation:
Self-pollination refers to a plant's ability to fertilize itself by transferring its pollen from the male to the female sexual organ within the same plant. This mechanism implies the absence of pollinating agents like water, wind or birds.
The pollen grain represents the male gametophyte, present in the stamen, a male sexual organ. When transferred to the stigma - female sexual organ - the pollen grain hatches, it forms the pollen tube to join the oosphere, the female gametophyte.
Cells make up the smallest bits of every living thing. Everything that contributes to a living thing being alive comes from cells, making it the fundamental part of life.
The high intake of processed food have increased our intake of harmful bacteria which resulted in increase of allergies asthma arthiris and heart attacks....
