✓ Board-verified
Science · 2024 · 1 mark
CBSE 2024 · Region 1 · Set 1 · Q19
Assertion (A): The rate of breathing in aquatic organisms is much faster than in terrestrial organisms. Reason (R): The amount of oxygen dissolved in…
Assertion (A): The rate of breathing in aquatic organisms is much faster than in terrestrial organisms.
Reason (R) : The amount of oxygen dissolved in water is very high as compared to the amount of oxygen in air.
Official answer
(C)
Assertion (A) is true, but Reason (R) is false.
All Life Processes questions2024 question paperNCERT solutions: Life ProcessesPractice Life Processes →
More from Life Processes
- In the given diagram of a closed stomata: (1), (2), (3) and (4) respectively are2023
- Observe the figure given below and identify the incorrect step for the activity set-up:2026
- (i) State the role of ATP in cellular respiration. (ii) What ensures sufficient exchange of gases in plants? (iii) State the conditions on which the…2023
- Kidneys help to regulate the volume of fluid and various metabolites waste products in the body. Normally, kidney filter about 180 L of fluid daily…2026
- Assertion: Most of the plants close their stomata at night. Reason (R): Closing of stomata helps to conserve water as large amount of water…2024
- Give differences between the following: Nephron and neuron Sensory nerve and motor nerve Consumers and decomposers2026
- (i) Which organisms have a three-chambered heart? Why do they have three-chambered hearts? (ii) List two functions of lymph.2024
- Which one of the following is not an excretory product in plants?2025
CBSE Class 10 Science past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.