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mamaluj [8]
3 years ago
15

What does echinoderms mean

Biology
1 answer:
kykrilka [37]3 years ago
7 0

Explanation:

Echinoderms belong to a very diverse phylum of marine-dwelling invertebrates, which have integral roles in salt water aquatic ecosystems. They comprise brittle stars, starfish, sea-urchins, sand dollars, and sea cucumbers. They have distinct characteristics, they:

  • are only marine animals.
  • show bilateral symmetry as larvae, and radial symmetry as adults
  • show three layers (germ)
  • show complex-level organisation, i.e. organs are seen
  • have a fluid-filled body cavity

Learn more about other phyla at brainly.com/question/9504034

#LearnWithBrainly

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vitfil [10]

The purple spots on the colorless background of corn kernels observed by Barbara McClintock were the result of the transposition of the Ds elements out of the color gene.

<h3>What are the genetic elements found in corn?</h3>
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Hence, Barbara McClintock discovered purple patches on the colorless backdrop of maize kernels due to the transposition of the Ds elements out of the color gene.

To learn more about Transposition refer to:

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#SPJ4

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