Generated by claude-sonnet-4-6 · 2026-06-15 06:43 · grounding rag
Model Answer
(a)
Budding in Hydra:
In Hydra, a small outgrowth called a bud develops on the parent body due to repeated cell division. The bud gradually grows, develops a mouth and tentacles, and eventually detaches to become a new independent Hydra.
Diagram:
```
Tentacles
|||
[Parent Hydra]
|
[Bud] ← developing bud with tentacles
|
[Base]
```
(Label: Parent Hydra, Bud, Tentacles, Point of detachment)
The cells used for reproduction in this process are undifferentiated meristematic-type cells (generalised cells capable of growth and proliferation) that form the bud.
Source: Chapter 7, Section 7.2 — Modes of Reproduction Used by Single Organisms
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Explanation
- Diagram is compulsory — even a rough, clearly labelled sketch earns marks. Label at minimum: Parent Hydra, Bud, Tentacles, Point of detachment.
- The process description should cover: outgrowth → cell division → development of mouth & tentacles → detachment.
- For the cell type, the textbook refers to cells capable of "growing, proliferating and making other cell types" — examiners accept undifferentiated cells or interstitial cells. Do not leave this part out; it is specifically asked and carries a mark.
- Keep the answer concise but complete — diagram + process + cell name = 3 marks.