Fill in the blanks. (i) The blood from the heart is transported to all parts of the body by the _____________. (ii) Haemoglobin is present in _____________ cells. (iii) Arteries and veins are joined by a network of _____________. (iv) The rhythmic expansion and contraction of the heart is called the _____________. (v) The main excretory product in human beings is _____________. (vi) Sweat contains water and _____________. (vii) Kidneys eliminate the waste materials in the liquid form called _____________. (viii) Water reaches great heights in the trees because of suction pull caused by _____________.
ScienceClass 7CBSEAnswered 27 Mar 2026
Answer
Solution:
(i) The blood from the heart is transported to all parts of the body by the arteries.
(ii) Haemoglobin is present in red blood cells.
(iii) Arteries and veins are joined by a network of capillaries.
(iv) The rhythmic expansion and contraction of the heart is called the heartbeat.
(v) The main excretory product in human beings is urea.
(vi) Sweat contains water and salts.
(vii) Kidneys eliminate the waste materials in the liquid form called urine.
(viii) Water reaches great heights in the trees because of suction pull caused by transpiration.
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