Tough e noughâ¢ race bibs are a line of tear and water resistant bibs printed on a biodegradable paper laminate. 2: Are Tough e noughâ¢ race bibs as durable as synthetic paper (Tyvek)? Tough e noughâ¢ race bibs are as durable as bibs made on synthetic paper because they are made with an inner layer of plastic film.un a greener race with Tough enoughâ¢ biodegradable race bibs. Introducing a new line of tear and water resistant race bibs printed on a biodegradable paper laminate.
A single daisy or sunflower, for example, is not a flower but a flower head âan inflorescence composed of numerous flowers (or florets). An inflorescence may include specialized stems and modified leaves known as bracts.
Like sepals, petals can be either free or fused in a flower. Flowers with free petals are called polypetalous flowers; whereas, gamopetalous flowers have fused petals. Androecium: Androecium or the stamen is the male reproductive organ in a flower. A stamen consists of an anther and a filament. An anther produces and contains pollens; whereas, the filament is a hair like structure that attaches the anther to the flower. The pollen contains the male gametes or the sperms.