1. Ureters in frogs: In a male frog the ureter carries both excretory matter and sperm, therefore, it is also known as the urogenital duct which opens into the cloaca whereas in females the ureter only carries excretory material.
2. Malpighian tubules: It is made up of glandular and ciliated epithelium and helps in the excretion of waste material in cockroaches.
3. In earthworms, the body wall is segmented which helps in movement and it also consists of secretory glands.
Answered by Abhisek | 1 year agoDraw 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
Distinguish between Simple glands and compound glands