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Nastasia [14]
2 years ago
8

Small, fishlike marine chordates, pointed at both ends with no distinguishable head, in which the notochord runs the entire leng

th of the nerve cord, are called
Biology
1 answer:
TEA [102]2 years ago
7 0

lancelets.

Small, fishlike marine chordates, pointed at both ends with no distinguishable head, in which the notochord runs the entire length of the nerve cord, are called lancelets.

<h3>What traits do lancelets possess?</h3>
  • Lancelets are sleek creatures.
  • A dorsal fin runs the length of the body's upper surface, continuing as a caudal fin around the tail and a ventral fin to the body's bottom surface atrium.
  • Paired fins are not present, but metapleural folds on the body's sides may be paired fin progenitors.

<h3>How come it's called a lancelet?</h3>

Because of their elongated bodies, lancelets are also known as amphioxus, which translates to "both ends pointy".

<h3>Where do lancelets live?</h3>
  • Lancelets are found on temperate and tropical shores all over the world.
  • They live in shallow coastal waters with soft substrates that range from sand to coarse shelly sand or gravel.

To learn more about lancelets visit:

brainly.com/question/3151275

#SPJ4

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