Refer to the given figure and select the correct option regarding X,Y and Z.
Channel: Doubtnut
Date: 30/08/2020

Refer to the given figure and select the correct option regarding X,Y and Z. img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/NCERT_FING_BIO_OBJ_XII_EVO_C07_E01_027_Q01.png" width="80%"