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fenix001 [56]
3 years ago
9

1. Which of the following do chordates NOT have at any point in their lives? notochord pharyngeal gill pouches nerve cord none o

f the above
Biology
2 answers:
abruzzese [7]3 years ago
5 0

Answer:

The correct answer would be none of the above.

Explanation:

Chordata has 5 major characteristics that they have at some stage in their lives, a dorsal tubular nerve cord, a notochord, pharyngeal gill slits, a post- tail, and a thyroid/endostyle gland.

The notochord is a flexible, rod-like structure that is present in the development stage of all chordates and reason for the name of the phylum. Nerve cord is rise from the ectoderm and develops into a hollow tube. pharyngeal gill slits let water enter and exit the mouth during feeding.

Thus, the correct answer would be none of the above.

Alexus [3.1K]3 years ago
4 0
Gill pouches seems like the most reasonable answer, only because a chordate needs a notochord and a nerve cord.
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