NEETBotanyAnimal Kingdom
Read the following statements and choose the follwoing option: 1. Animals that lack a mesoderm in their body cavity are called acoelomate 2. Coelomates have their body cavity lined by mesoderm 3. Acoelomates lack mesoderms completely. 4.Cnidarians exhibit tissue level of organisation and are diploblastic. 5. Cnidarians have a central gastro-vascular cavity with a single opening, mouth on hypostome.
Options
- AAll are correct except 5
- BOnly 1 is incorrect
- CBoth 2 and 3 are correct
- DOnly 4 is correct
Correct answer
B. Only 1 is incorrect
Step-by-step solution
The body cavity, which is lined by mesoderm is called coelom. Animals possessing coelom are called coelomates, e.g., annelids, molluscs, arthropods, echinoderms, hemichordates and chordates., Cnidarians exhibit tissue level of organisation and are diploblastic. They have a central gastro-vascular cavity with a single opening, mouth on hypostome.