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Which organ of the circulatory system pump blood?
The solution of minerals, water, food and gases that is circulated through xylem and phloem is called
The solution of water and minerals absorbed by the roots move upwards to the other parts of the plant through
The ultimate cause of the movement of water against gravity in a tree is
Which of the following has no muscular walls?
Capillaries have no muscular wall. They have thin walls hence diffusion or exchange of gases takes place in capillaries easily.
Transpiration means the loss of water and waste materials through stomata and lenticels.
Glucose solution when treated with Benedict’s solution and heated turns
The upper chambers of the heart are called
The lower chambers of the heart are called
______ pump deoxygenated blood to the lungs.
______ receives oxygenated blood from the lungs.
Which of the following statements is false?