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.
Flowers can be male, female or both. If the flowers have male and female structures they are said to be perfect.   Imperfect flowers have either male or female reprod â¦ uctive structures. If a plant has male and female flowers on one plant it is said to be monoecious (which means one house). Squash and corn plants are monoecious. If the male and female flowers are on separate plants, they are said to be dioecious (which means two houses). Hollies, kiwi and ginko plants are dioecious.