Hey there!!

As you may know , NEET 2019 will be conducted by NTA ( National Testing Agency). There are some new rules but there is no change in the syllabus of any subject (bio,chem, physics). The syllabus is same as per CBSE guidelines.

So the unit Structural Organisation in Animals in Biology have mainly four portions.

1. Animal Tissues

2. Earthworm

3. Cockroach

4. Frog

Since the portion Frog has been deleted from the syllabus few time ago. But still questions were asked from this portion in NEET 2017. So it would be recommend to go through all the portions to achieve good marks.

Good luck!!