7). Pollination is the transfer of pollen to an ovule by wind, insects and other agents. Then pollen grain (male gametophytes) transport the sperm directly into the egg, thus fertilization occurs. Pollination of flowers is an essential step in the fruit production, and the process of pollination varies with the species or within the species. Generally, insects and wind carry pollen from one flower to another and thus raises the chances of fertilization. The co-evolution of certain insects and flowering plants is driven by their symbiotic relationship. Increased chances of pollination and seed dispersal by animals and other vectors, and all other factors that increased the fitness of plants. The animal pollinator get some reward when it visit its coevolved plant. For example, the co- evolution of flowers with deep fragrance and UV-reflecting pigments. Bees have a keen sense of smell and they can also see UV light, so the flowers with these characterises attract bees and thus, promotes pollination. In this case, the bees carry the pollen and nectar, pollen is transported to the other plants or used by bees and nectar is utilized as a food source by the bees (mutual benefit in coevolution). Hummingbirds can collect nectar from the flowers that dangle from the plants by making use of their long beaks. This indicates the coevolution of hummingbirds and these flowers. They also carry pollen along with them and deposit on another flower. The seed is an essential part of plant life cycle. Dispersion of seeds facilitates the migration and dispersal of plant offspring into new places. Seed coat protect allows the seed to remain dormant until conditions are favorable for growth. The agents of seed dispersal mostly includes the wind and animals that feed on fruits of the plant. Solution 7). Pollination is the transfer of pollen to an ovule by wind, insects and other agents. Then pollen grain (male gametophytes) transport the sperm directly into the egg, thus fertilization occurs. Pollination of flowers is an essential step in the fruit production, and the process of pollination varies with the species or within the species. Generally, insects and wind carry pollen from one flower to another and thus raises the chances of fertilization. The co-evolution of certain insects and flowering plants is driven by their symbiotic relationship. Increased chances of pollination and seed dispersal by animals and other vectors, and all other factors that increased the fitness of plants. The animal pollinator get some reward when it visit its coevolved plant. For example, the co- evolution of flowers with deep fragrance and UV-reflecting pigments. Bees have a keen sense of smell and they can also see UV light, so the flowers with these characterises attract bees and thus, promotes pollination. In this case, the bees carry the pollen and nectar, pollen is transported to the other plants or used by bees and nectar is utilized as a food source by the bees (mutual benefit .