Which are the special proteins in muscles that contract and relax to cause movement?
___, present in the centre of a flower, forms the female reproductive part.
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Primary growth in plants occurs by
A. Vertical meristem
B. Lateral meristem
C. Intercalary meristem
D. Apical meristem
A section of DNA that provides information for one protein is called the ___.
Which part of the brain regulates breathing?
Evaporation of water from leaves of a plant is called
The disease cirrhosis affects which organ in the body?
How many litres of blood does an adult body have?
Which of the following is the primary sex organ in man?
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