(a) Name the following:
The phase of cardiac cycle in which the auricles contract. Systole (ii)
The organ where urea is produced. Liver
The hormone that helps increase the reabsorption of water from the kidney tubules. ADH (iv)
Chemical substances produced by micro organisms that can kill or inhibit the growth of other micro organisms.
State the main function of the following:
Chordae tendinae It holds the valves of the heart in place. (ii)
Beta cells of pancreas Production of insulin.
Give the exact location of the:
Thyroid gland Below larynx above pharynx in front of the neck. (ii)
Mitral valve. On the left side of the heart.  (d) Given below are sets of five terms each. In each case rewrite the terms in logical sequence as directed at the end of each statement. An example has been done for you: Example:
Cortical cells, Root hair, xylem, Soil water, endodermis (absorption of water by the plants) Answer: Soil water, Root hair, cortical cells, endodermis, xylem (i)
Renal vein, Renal artery, Afferent arteriole, Efferent arteriole, Glomerulus (pathway of blood through glomerulus).
A(i)Renal artery,Afferent arteriole,Glomerulus,Efferent arteriole,Renal vein.
 (e) Given below are six sets with four terms each. In each set a term is an odd one and cannot be grouped in the same category to which the other three belong. Identify the odd one in each set and name the category to which the remaining three belong. The first has been done for you as an example. No.
Cell wall, large vacuole, plastids,
Parts of plant cell
gland, pituitary gland
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