| The Hedgehog proteins are secreted morphogens that provide positional information during the development of many multi-cellular animals. |
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| Dr. Brenner's worm, multi-cellular yet relatively simple, became the most appropriate model system. |
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| The challenge was to find a multi-cellular animal as amenable to genetic studies as E coli. |
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| The earliest evidence for multi-cellular organisms dates their first appearance to about a billion years ago. |
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| Because it is a multi-cellular raw material, it provides greater shape consistency during washing, as well as retaining the soapy foam. |
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| Rotifera are miscroscopic multi-cellular organisms found in leachates and the water contained in compost. |
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| Aquatic plants come in many forms, from relatively simple multi-cellular algae to reeds and water lilies. |
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| This multi-cellular arrangement provided huge reserves of strength. |
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| The first complex, multi-cellular organisms appeared. |
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| It applies mutatis mutandis to the production of all multi-cellular marine algae or phytoplankton and micro-algae for further use as feed for aquaculture animals. |
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| Many thousands of complete specimens have been preserved on exposed bedding surfaces, providing the earliest and most complete record knowing of Eliacaran multi-cellular life. |
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| Sponges are aquatic animals that are multi-cellular but without tissues. |
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| Why is DECT the leading technology for multi-cellular voice transmission? |
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| Stem cells are found in all multi-cellular organisms. |
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| He considers this multi-cellular organism, which he still uses today, to be a highly effective model to explore fundamental questions in biology, the answers to which can then be used in the study of human biology. |
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| They might be a link to the revolutionary changes in the biosphere, which heralded the appearance of the complex multi-cellular animals of the Late Precambrian. |
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| Once multi-cellular eukarya developed, the increased scope for mutation drove an explosion in the diversity of eukarya about 600 million years ago. |
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| They represent a major evolutionary transition from single cells towards co-operative multi-cellular life, although the association is relatively loose. |
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| There he focused his interest on combined RNA interference and population genetic approaches to study genetic interaction networks in higher multi-cellular organisms. |
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| The alternation between haploid gametophyte and diploid sporophyte phases, known as alternation of generations, occurs in all multi-cellular plants. |
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| The first involves studies of single and multi-cellular algae which serves as model systems for allometric scaling laws in evolution. |
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| The emoticons are used to demonstrate how evolution works from a single-celled to multi-cellular organisms. |
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| We are now studying other mechanisms by which mechanical cues from gastrulation might activate master genes protein product that control active multi-cellular morphogenetic movements and the formation of primitive organs. |
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