Question

The terga, sterna and pleura of cockroach bodies are joined by

• A. Arthrodial membrane
• B. Cementing glue
• C. Cartilage
• D. Muscular tissue

Answer 1

The correct option is A

Arthrodial membrane

The correct option is A.

Explanation of correct option:

1. Cockroach belongs to phylum Arthropoda.
2. It has exoskeleton with a segmented body.
3. Each segment is further divided into four elements.
4. Those are - dorsal tergum (terga) , ventral sternum (sterna), and two lateral pleurons (pleura).
5. These terga, sterna, and pleura of cockroach body are joined by arthrodial membrane.
6. Arthrodial membrane is a tough, flexible cuticle.
7. The arthrodial membrane is elastic in nature.

Explanation of incorrect options:

Option B:

1. Cementing glue is an artificial adhesive substance that we buy for adhering porous concrete to other surfaces.

Option C:

1. Cartilage is a smooth elastic tissue that is absent in cockroaches.

Option D:

1. Arthrodial membrane is not a muscular tissue.

Final answer: The terga, sterna and pleura of cockroach bodies are joined by arthrodial membrane.