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.
1. Seeds do not contain the gametes for reproduction unlike pollens. 2. Seeds are generally bigger in size than pollens. 3. Seeds are the end products of the reproduction cycle of most seed plants while pollens are part of the starting phase of the plant reproduction process.he embryo is the point where the new plant can grow when put in the most ideal propagating conditions. It can have one seed leaf (as in the case of monocotyledons) or two in dicots. The second part of a seed is called the nutrient supply for the embryo which in most cases is called the endosperm.