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Science · 2023 · 2 marks
CBSE 2023 · Region 4 · Set 2 · Q25
Name the hormone secreted in scary situations by animals. Write any three responses which enable the animal body to deal with it.
Marking-scheme solution
Adrenaline
Three responses:-
(1) It increases the heartbeat.
(2) Blood to the digestive system is reduced.
(3) Breathing rate increases .
(4) Blood to the skin reduced.
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CBSE Class 10 Science past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.