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प्रश्न
In human beings the blood goes to the heart in one cycle once.
उत्तर
False
In human beings, the blood goes to the heart twice in one cycle. This is called double circulation.
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संबंधित प्रश्न
Raisins are formed by drying grapes. The process that takes place during formation of raisins from grapes is .................... .
(a) Absorption
(b) Osmosis
(c) Diffusion
(d) Dehydration
Raisins put in water absorb water by the process of _________.
(a) diffusion
(b) osmosis
(c) transpiration
(d) excretion
The percentage of water absorbed by raisins is calculated on dividing …………. by initial weight.
(a) Final weight
(b) Increased weight
(c) Decreased weight
(d) None of the above
Draw a neat labelled diagram of vertical section of the human heart.
______________ artery takes the blood to the lungs for oxygenation.
Write two points of differences between arteries and veins.
Fill in the blank and rewrite the completed statement:
____________ artery takes the blood to the lungs for oxygenation.
