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.
When you grow a plant from seed that is considered sexual reproduction because thatâs how nature intended for plants to reproduce. The parent plant flowers, those flowers produce fruit, that fruit contains seeds. The seeds fall to the ground, some of them germinate and a new plant emerges. Thatâs how plants reproduce.