2016-03-20T11:09:14+05:30 function is exchange of gases and prevent transpiration oxygen is given out carbon di oxide is taken in.....
ovary's function is to release hormones estrogen and progestrone and produce ova...
...blood platelets stop bleeding when there is a wound in on body its function is called clotting..
spinal cord's work is to transmit electric impulse from sensory nerve to brain and electric impulse from brain to motornerve...
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Stomata helps in exchange of gases.

ovary release female harmones and also female gaematic cell ovaa/egg

grana is present in chloroplast and helps in photosynthesis by trapping sunlight.

blood platelets undergo a process to form clott where a blood vessel is cut.

spinal cord helps in transmission of nerve impulses.