CBSE 2025 · Region 3 · Set 3 · Q29 · 3 marks
Why is blood circulation in vertebrates known as "double circulation"? Trace its path in the form of a flow chart.
Marking-scheme solution
Blood flows twice in the heart before it completes one complete round of the body.
cava
(Deoxygenated blood)Life ProcessesTransportation in Human BeingsUnderstandshort_answermedium
More from Life Processes
- (i) "The length of the small intestine in various animals depends on the food they eat." Justify the…2025 · asked 3×
- Secretion of less saliva in mouth will effect the conversion of:2025 · asked 3×
- In human alimentary canal, the digestive juice secreted by the gastric glands are2025 · asked 3×
- Listed below are the steps of nutrition in Amoeba. Select the correct sequence of these steps: (i) Diffusion…2025 · asked 3×
- The maintenance functions of all living organisms must go on even when they are not doing anything…2025 · asked 3×
- Select TRUE statements about lymph from the following: A. Lymph vessels carry lymph through the body and…2025 · asked 3×
- One-cell thick blood vessels are known as:2025 · asked 3×
- Assertion: Xylem tissue moves water and minerals obtained from the soil by the roots. Reason (R): Xylem…2025 · asked 3×
CBSE Class 10 Science past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.