The bodies of the animals of phylum Platyhelminthes show _________ grade organisation.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1. i.e. tissue-organ .
- Platyhelminthes commonly known as flatworms belongs to Animalia kingdom.
- Tissues and organs are the basic structural units of our bodies.
- Their body is flattened, soft and unsegmented.