Hey

Structural organization in animals and plants is the second chapter of class 11 in the syllabus of NEET biology

I would suggest you to see the videos of this topic from Vedantu as they provide really on point questions that have high chances in coming in NEET. They also provide pdfs for those topics. You can also downloads the notes of any chapter from https://mycbseguide.com/downloads/cbse-class-11-biology/1388/cbse-revision-notes/7/

You can also visit https://learn.careers360.com/biology/structural-organisation-in-animals-and-plants-chapter/