4b) visual observations as the sample is brought near the side of the flame, in the flame, and out of the flame, 4c) odor as the fibres burn, 4d) characteristics of the ash including the colour and texture. 4e) The man-made fibers will decompose and melt. much quicker than either the animal or vegetable fibers.
Bluefin tuna swim in a holding pen in Australia. A conservation group has named three fish species that it says are at risk of extinction. The fish are threatened because of overfishing to meet the worldâs growing demand for food.
Predators of herring include seabirds, marine mammals such as dolphins, porpoises, orca, whales, seals and sea lions, predator fish such as sharks, billfish, tuna, salmon, striped bass, cod and halibut, and fishermen.he type genus of the herring family Clupeidae is Clupea. Clupea contains three species: the Atlantic herring (the type species) found in the north Atlantic, the Pacific herring found in the north Pacific, and the Araucanian herring found off the coast of Chile.