Generated by claude-sonnet-4-6 · 2026-06-15 06:43 · grounding rag
Model Answer
(i) The diagram shows asexual reproduction — specifically various modes such as fission, budding, and fragmentation.
(ii) The unicellular organism shown in the diagram is Amoeba (which reproduces by binary fission).
(iii) Two advantages of asexual reproduction over sexual reproduction:
- Only one parent is required, so the organism does not need a mate.
- It is a rapid process, allowing quick multiplication of individuals.
(iv) Budding in Hydra:
Hydra reproduces asexually by budding. In this process, a small outgrowth called a bud develops on the body of the parent Hydra. The bud gradually grows, develops a mouth and tentacles, and eventually detaches from the parent body to grow into a new independent Hydra.
Source: Chapter 7, Section 7.2 (Asexual Reproduction)
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Explanation
- (i) The diagram collectively shows asexual reproduction; name the broader term and mention examples visible.
- (ii) Amoeba is the classic unicellular example from the textbook (Section 7.2.1); Leishmania/Plasmodium are also unicellular but Amoeba is the primary diagram shown.
- (iii) This is only 1 mark for two points — keep it brief (one line each). Examiners look for "no mate needed" and "rapid reproduction."
- (iv) 2 marks = name the mode + explain it in 2–3 sentences. Mention: bud formation → growth → detachment → new organism. The word budding must appear for full credit.