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Stells [14]
3 years ago
7

Please help I need help​

Biology
1 answer:
stepan [7]3 years ago
5 0

Answer:

Explanation:

Hmmm wht is this even bro

I guess it will flow

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Lancelet is a chordate but not a vertebrate because it lacks a backbone

Explanation:

The subphyla of the phylum Chordata are - Vertebrata, Urochordata and cephalochordate

Those chordates with a structural backbone belong to Vertebrata.

Urochordates and cephalochordates lack a backbone and hence are termed invertebrate chordates.

Lancelet is an invertebrate chordate of the subphylum – Cephalochordata.  

The lancelets consist of a notochord that extends right from the head till the tail at the dorsal surface. The notochord acts like the backbone and provides support and a semi-flexible structure to aid in the movement of the organism.

They lack a developed nervous system like vertebrates but only has a dorsal nerve tube .

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The set of Wavelength is absorbed by pigment. So in a typical leaf some pigment can’t be visible.

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The reason behind color of plant looking green because it contains huge amount of chlorophyll a and b molecule. It reflects the green light.

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