Explain how chordates reproduce
Explain how chordates reproduce?
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The reproduction in beings of phylum Chordata is sexual, with the exemption of urochordates which can as well reproduce asexually. In certain classes (that is, osteichthyes fishes, cyclostomes, and amphibians) there is larval phase. With rare exceptions, amphibians, fishes, reptiles and monotreme mammals are oviparous, egg-laying (that is, embryos develop in eggs and exterior to the mother’s body) and marsupial and placental mammals are viviparous (that is, embryos develop within the mother’s body, feeding from her).
Name the external rigid carapace of arthropods termed? Of which substance it is made up? Which kind of organic molecule is that substance?
Describe briefly the three main functions of the antibodies?
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Briefly, illustrate regarding the foreignness of a molecule, which creates a substance antigenic?
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Advantages of the objectives According to the L. Gulick, "in administration god helps those have a clearly defined objective". An organization can grow and prosper i
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