Design speeds for frontage roads are a factor in the design of the roadway. For consistency, design speeds should be used that match values used for collector streets or highways. For urban frontage roads, the desirable design speed is 50 mph [80 km/h] and the minimum design speed is 30 mph [50 km/h].
Different plants reproduce in different ways. Some plants reproduce asexually, others do use a type of sexual reproduction. Flowering plants in particular reproduce both sexua â¦ lly and asexually. Reproduction in flowering plants involves the production of gametes, the transfer of the male gametes to the female ovules is through pollen.
Flowers are the reproductive structures of flowering plants (Angiosperms ). Flowers can range. from being very colorful and conspicuous, such as a rose or orchid, to being very simple, reduced. and inconspicuous, such as those of grasses, oaks, and elms. The function of a flower is to produce. the reproductive cells of the plant (eggs and pollen) and then produce seeds , the dormant young plant. of the next generation. The seeds of flowering plants are surrounded by a tissue called the fruit , which may be fleshy or. dry.