CBSE Class 10 Science 2019 · Paper 31/5/1 · Question 27(b)
A student observed a permanent slide showing asexual reproduction in Hydra. Draw labelled diagram in proper sequence of the observations that must have been made by the student. Name the process of reproduction also.
Answer
Budding: a bud forms on the parent Hydra, grows, develops tentacles and a mouth, then detaches as a new Hydra.
Labelled diagrams in proper sequence (see the figure):
(1) A small bud (outgrowth) appears on the side of the parent Hydra, formed by repeated cell division at one spot.
(2) The bud grows larger.
(3) It develops tentacles and a mouth and becomes a tiny Hydra, still attached to the parent.
(4) It separates from the parent and lives as a new, independent Hydra.
The process of reproduction is budding.
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