The Evolution of Fish: Vertebrates Begin Essay - 1659 Words.
Essay Questions Essay Questions Q 1 Vertebrates should often fight back themselves against invading microorganisms that can effortlessly penetrate the epithelia of the respiratory, gastrointestinal, and genital schemes. In addition, many microorganisms live as commensals or saprophytes in internal cavities of most living organisms. Although commensal microbes may be helpful to the owner, for.
Animals can be classified as either vertebrates or invertebrates. Vertebrates are animals that have a backbone inside their body. The major groups include fish, amphibians, reptiles, birds and.
In size, vertebrates range from minute fishes to elephants and whales (of up to 100 tons), the largest animals ever to have existed. Vertebrates are adapted to life underground, on the surface, and in the air. They feed upon plants, invertebrate animals, and one another. Vertebrate faunas are important to humans for food and recreation.
The evolution of respiratory systems has been an extremely specific process that has showed both gradual, and rapid changes throughout the many lineages of the animal kingdom in order to encorporate universal requirements, as well as accessory breathing mechanisms (Weibel, 1984). Respiration is a vital life process required for survival and it is essential that gas exchange is as efficient as.
Vertebrate immunity. Vertebrates also rely extensively on the physicochemical barriers such as the skin and the mucus covering the gut, respiratory and reproductive systems for protection from would-be infectious agents. The white blood cells arise from pluripotent cells in the bone marrow or their equivalent in lower vertebrates. These stem cells pass either through the myeloid lineage to.
Introduction to Vertebrates Chapter Exam Instructions. Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come.
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