| Prostomium | Peristomium |
| It overhangs on the mouth of an earthworm in form of a small fleshy lobe which helps to push the organisms themselves into the soil and also it is sensory in function. |
It is the first body segment present in the earthworm and it also consists of the mouth. |
Answered by Abhisek | 1 year ago
Mention the function of the following
1. Ureters in frog
2. Malpighian tubules
3. Body wall in earthworm
Draw a neat diagram of the digestive system of frogs.
Mention briefly the circulatory system of earthworms
Match the terms in Column I with those in column II:
| Column I | Column II |
| (a) Compound epithelium | (i) Alimentary canal |
| (b) Compound eye | (ii) Cockroach |
| (c) Septal nephridia | (iii) Skin |
| (d) Open circulatory system | (iv) Mosaic vision |
| (e) Typhlosole | (v) Earthworm |
| (f) Osteocytes | (vi) Phallomere |
| (g) Genitalia | (vii) Bone |
Mark the odd one in each series:
1. Areolar tissue; blood; neuron; tendon
2. RBC; WBC; platelets; cartilage
3. Exocrine; endocrine; salivary gland; ligament
4. Maxilla; mandible; labrum; athorax; coxa
5. Protonema; mesothorax; metathorax; coxa