They demonstrated a range of techniques invertebrates use to fight off diseases.
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Background: Innate immunity is essential in defending against invading pathogens in invertebrates.
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In the Silurian ages, invertebrates-brachiopodsand crinoids and cephalopods-werethe dominant types.
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Will the fish devour our tiny invertebrates and thus unbalance our ecosystem?
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But the creepy crawly invertebrates have just as complex an immune system.
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Balanced invertebrate ecosystems are also a strong natural source of pest control.
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The fear of man is no instinctive feeling in the invertebrate creation.
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But jellyfish-thosegelatinous, pulsating, invertebrate aquatic creatures-drewher back to the sea.
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But the stranger, though alive, was evidently in a molluscous, invertebrate condition.
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These lipid compositions are compared with those in other invertebrate nervous systems.
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That's theinvertebrates showing the true story that the nitrates aren't showing.
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Thus the Algonkian contains the remains of only the humblest forms of theinvertebrates.
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We must pass over the ever-changing groups of theinvertebrates with the briefest notice.
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They have the same shape as in many other vertebrates and most of theinvertebrates.
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About the same time a great impetus was given to the embryology of theinvertebrates.
Ús de invertebrata en anglès
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Similar variations occur in all the various groups of marine invertebrata, and in the great sub-kingdom of the mollusca they are especially numerous.
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The Invertebrata, Botanical and Mineralogical specimens in the galleries.
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But his chief interest lay in the Invertebrata.
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It includes those Invertebrata having the body composed of a series of ringlike segments (arthromeres).
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In other words, study the Invertebrata.
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Nor must it be imagined that after the publication of his ideal work on the Crayfishes in 1880, he had forsaken the Invertebrata.
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Among the remaining divisions of Invertebrata special mention may be made of the air-breathing Arthropoda -on the whole the most important and interesting group.
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"Wasps and bees certainly seem to rage, but if one comes to think, most of the invertebrata show very few signs of it."