The cross-section of the body of an invertebrate is given below. Ident...
- It has three-layered body wall which includes ectoderm, endoderm, and mesoderm.
- Acoelomates lack a body cavity, and instead the space between the body wall and the digestive tract is filled with muscle fibres and loose tissue called parenchyma.
- It acts as a skeletal support, nutrient storage, motility, reserves of regenerative cells and transporting materials.
- Planaria belongs to phylum Platyhelminthes.
- These are flatworms and has acoelomate body plan.
Hence, the correct option is D.
NCERT Reference: Topic Phylum – Platyhelminthes” of chapter Animal Kingdom
View all questions of this testThe cross-section of the body of an invertebrate is given below. Ident...
Planaria belongs to phylum Platyhelminthes. These are flatworms and has acoelomate body plan. It has three-layered body wall which includes ectoderm, endoderm, and mesoderm. Acoelomates lack a body cavity, and instead the space between the body wall and the digestive tract is filled with muscle fibres and loose tissue called parenchyma. It acts as a skeletal support, nutrient storage, motility, reserves of regenerative cells and transporting materials.
So, the correct answer is option D
The cross-section of the body of an invertebrate is given below. Ident...
This picture is Pseudoceolomate because patches of mesoderm is lined.. and Pseudoceolomate animal are aschehelmenthis so answer is roundworm.