Modern sea star larva resemble some primitive vertebrae larvae. This similarity may suggest that primitive? vertebrates a. share a common ancestor with sea stars b evolved from sea stars c evolved before sea stars d belong to the same species as sea stars

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Modern sea star larva resemble some primitive vertebrae larvae. This similarity may suggest that primitive? vertebrates a. share a common ancestor with sea stars b evolved from sea stars c evolved before sea stars d belong to the same species as sea stars

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Lrathburnid Lrathburnid · Answer 1

Lrathburnid Lrathburnid

The similarity between the sea star larva of modern times and some primitive vertebrae larvae suggests that they share a common ancestor with sea stars

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Anvitanvar032id Anvitanvar032id · Answer 2

Modern sea star larva resemble some primitive vertebrae larvae. This similarity may suggest that primitive share a common ancestor with sea stars.

What are primitive vertebrae larvae?

A scientist refers to something as "primitive" if it has undergone the least evolution since the first vertebrates.
They lack paired pectoral (shoulder) and pelvic (hip) fins in addition to missing jaws.
Even in lampreys, their notochord remains throughout their entire existence and is never entirely replaced by a backbone. They don't have scales.
Hagfish are thought to be the most basic vertebrate known, living or extinct, as they lack both jaws and vertebrae.
The invertebrate class most closely related to vertebrates is the tunicates.
Ascidians, sometimes known as sea stars, are the most prevalent subgroup of tunicates. Ascidians are immobile, sessile creatures with bodies resembling vases.

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