Read e-book online A Photographic Guide to Sea Fishes of Southern Africa PDF
By Rudy van der Elst, Dennis King
Книга представляет собой краткой информационный определитель обычных морских рыб региона. Для 268 видов рыб приводятся сведения по внешнему облику, наиболее заметным особенностям, питанию и местам размножения, дополненные полноцветными фотографиями и картами распространения.
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Additional resources for A Photographic Guide to Sea Fishes of Southern Africa
The major function of the large intestine is to reabsorb water that was added to the gut content in the small intestine, and to absorb inorganic ions from the digested food. As a result the feces become more solid. The large intestine also contains many bacteria, which may produce gases as Dinosaurs byproduct of their metabolism, but also vitamins, such as vitamin K, that are absorbed into the blood. Feces are stored in the rectum until they can be eliminated through the anus. , deer, cattle, sheep, giraffes) who swallow grass hastily without chewing while watching out for predators, have a two-part stomach.
Herbivores animals who eat plants only Kathrin F. , Jane B. Reece, and Lawrence G. Mitchell. Biology, 5th ed. , 1999. Eckert, Roger, David Randall, and George Augustine. Animal Physiology, 3rd ed. New York: W. H. Freeman and Company, 1988. Kapit, Wynne, Robert I. Macey, and Esmail Meisami. The Physiology Coloring Book. Cambridge, MA: Harper Collins Publishers, 1987. , Gordon Orian, Craig H. Heller. Life: The Science of Biology, 4th ed. Sunderland, MA: Sinauer Associates, and W. H. Freeman and Company, 1994.
Even cryptic prey can be detected by keen predators. Some animals have the ability to ward off enemies with noxious tissues, stinging hairs, sticky secretions, painful injections, and foul-smelling excretions. The creatures that rely on chemical defenses also tend to have warning coloration, meaning that their bodies are boldly hued in red, black, orange, or bright yellow. This helps to remind predators of past unpleasant experiences with these species. After having eaten a warning-colored toxic prey, many predators quickly learn to retreat whenever they see the same warning display.
A Photographic Guide to Sea Fishes of Southern Africa by Rudy van der Elst, Dennis King