What are the characteristic of all chordates at some point during their life cycle?

Possession of notochord

Possession of dorsal hollow nerve chords.

Possession of pharyngeal gill-slits

Possession of  tail

Explanation:

All animals in the chordate group posses the following characteristics either throughout their entire life cycles or at some points in it:

Presence of notochord

Presence of dorsal hollow nerve chords.

Presence of pharyngeal gill-slits

Possession of  tail.

answer is d hope this

a ratio derived from the equality between two different units that can be used to convert from one unit to the other. information obtained from experiments, sometimes called experimental results. the part of the experiment that is affected by the independent variable.