Which organism forms a dorsal nerve cord in its embryonic stage?

The correct answer is chordates

Explanation:

Organism in the phylum Chordata develop dorsal nerve cord in their embryonic stage. Development of dorsal nerve cord is the characteristic feature of these animals and is developed by the mesoderm layer. In many of them they are only present in embryonic stage.

In vertebrates notocord disappears after completion of embryonic stage and is replaced by vertebral column which provide support and anchor to the  body structure of vertebrates.

Tunicates  are chordates and have dorsal nerve cord only in prenatal stage and it disappears in adults.

Crab

Explanation:

This is the correct answer if you get this question and your on PLATO.

d) center of the mid-ocean ridge

give brainleysest

sinserly,

steckh986

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

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