Draw a sectional view of the internal structure of the human heart and label the following parts and name them:
(i) Vein which brings deoxygenated blood from the upper part of the body.
(ii) Blood vessel which carries oxygenated blood to the body parts.
(iii) Chamber which pumps deoxygenated blood to the lungs.
Important Questions on Life Processes
In the experimental set-up shown below, water is found to arise in the delivery tube because
The iodine solution used to test the presence of starch is prepared by
A destarched leaf on a potted plant was covered with black (A), white (B), and transparent (C) strips of paper, as shown in the figure. After six hours of exposure to sunlight, the leaf was removed from the plant and tested for starch. Which one of the following will be the correct observation?
