Molecular evidence of anteroposterior patterning in adult ... - Nature
2023年11月1日 · Nature - RNA tomography and in situ hybridization in echinoderms suggest a new ambulacral-anterior model to relate echinoderm pentaradial symmetry to the ancestral bilateral symmetry.
仅显示来自 nature.com 的搜索结果A radical evolutionary makeo…
Echinoderms such as starfish are unusual for their five-fold body symmetry. Maps …
Early echinoderms decouple …
The resulting novel ecological dataset for echinoderms includes 40 characters …
Echinoderm roots - Nature
A bold claim about the origins of the echinoderms is based on newly …
A radical evolutionary makeover gave echinoderms …
2023年11月1日 · Echinoderms such as starfish are unusual for their five-fold body symmetry. Maps of gene-expression patterns show how this body plan was acquired, and that the genes specifying head structures do...
Early echinoderms decouple form and function - Nature
2022年2月10日 · The resulting novel ecological dataset for echinoderms includes 40 characters reflecting a wide range of factors that describe how echinoderms interact with their …
Echinoderm | Definition, Characteristics, Species,
2024年9月30日 · Echinoderm, any of a variety of invertebrate marine animals belonging to the phylum Echinodermata, characterized by a hard, spiny covering or skin. Living species include sea lilies, sea urchins, sea cucumbers, …
Echinoderm - Wikipedia
An echinoderm is any deuterostomal animal of the phylum Echinodermata (/ɪˌkaɪnoʊˈdɜːrmətə/), which includes starfish, brittle stars, sea urchins, sand dollars and sea cucumbers, as well as the sessile sea lilies or "stone lilies". While bilaterally symmetrical as larvae, as adults echinoderms are recognisable by their usually five-pointed radial symmetry (pentamerous symmetry), and are found o…
Wikipedia · CC-BY-SA 许可下的文字Echinoderm - Radial Symmetry, Tube Feet, Spines
2024年9月30日 · Echinoderm - Radial Symmetry, Tube Feet, Spines: Echinoderms have a skeleton composed of calcium carbonate (calcite). Living echinoderms have a conspicuous five-rayed, radial symmetry that masks …
Symbiotic Life of Echinoderm Larvae - Frontiers
2020年1月21日 · In this review we synthesize the properties of these bacteria and how they relate to the biology and ecology of the echinoderm larval host. In the first section, we provide an overview of our understanding of echinoderm …
Echinoderms - Natural History Museum
Echinoderms are sea stars, sea urchins, sea cucumbers, brittle stars, feather stars, and related animals. For many millions of years, they have been among the most conspicuous and abundant oceanic organisms. People around the world …
Echinoderm roots - Nature
2004年7月21日 · A bold claim about the origins of the echinoderms is based on newly discovered fossils from China. But many pieces are still missing from this part of the …
Echinoderm Facts and Information - ThoughtCo
2019年3月11日 · Echinoderms, or members of the phylum Echinodermata, are some of the most easily-recognized marine invertebrates. This phylum includes sea stars (starfish), sand dollars , and urchins, and they are identified by their …
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