To give bike frames their structural strength manufacturers employ a variety of unidirectional carbon fiber prepreg sheets. Each sheet is designated by the fiber orientation as being either a 0Â°, a plus 45Â°, a minus 45Â°, and/or a plus or minus 30Â°.
Sawfish are shark-like rays characterized by long, tooth-studded snouts. Individuals range in size from 2 to 20 feet and can weigh more than 1,000 pounds. Like most sharks and rays, sawfish are exceptionally vulnerable to overexploitation due to their slow growth, late maturity, and small number of young. All seven species worldwide are classified by the International Union for Conservation of Nature (IUCN) as Critically Endangered.
Clownfish live in and are protected by some species of sea anemone; without this protection, they cannot survive in the wild. Anemone tentacles sting and kill other species of fish, but the clownfish is protected from the anemoneâs sting.It is believed that the clownfish is protected due to a mucus coat on the outside of its skin.Studies have suggested that the clownfishâs protection can be innate, acquired, or both, depending upon the species.lownfish live in and are protected by some species of sea anemone; without this protection, they cannot survive in the wild. Anemone tentacles sting and kill other species of fish, but the clownfish is protected from the anemoneâs sting.