The Brainliest Answer!

This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Human - adjective       in the above  sentence.  because it is qualifying the vocal cords.  whether they are human/inhuman/soft/hard etc

he is  human...      adjective.

he is a human being      noun

3 5 3