CO ORDINATION

1. All the living organisms respond to _________ .

2. The functional and structural unit of the nervous system is _________ .

3. Interruptions in Myelin sheath (made up of Schwann cells) are called ___________.

4. A point of contact between two neurons is _________.

5. _____________ are also called sensory neurons and efferent neurons are motor nerves.

6. Brain is covered by three layers called __________.

7. Hypothalamus controls __________ gland.

8. ____________ is the centre for emotions, blood pressure, temperature, hungry and sleep.

9. ____________ maintains posture, equilibrium and muscle tone.

10. ______________ controls cardiac, respiratory and vasomotor activities.

11. No. of cranial nerves are _____ pairs and spinal nerves are ____ pairs.

12. The dilation of pupil influenced by _________ nervous system/ adrenal gland.

13. Islets of langerhans (Insulin producer in pancreas) were discovered by _________ in 1868.

14. In 1905 ________ had coined the term hormones which are secreted by ductless glands.

15. __________ is also called Fight and flight hormone.

16. __________ secreted by thyroid is responsible for growth rate and metabolic activity.

17. Closing of stomata, seed dormancy is caused by ______________.

18. ________ influence the cell elongation, differentiation of shoots and roots.

19. ___________ promote cell division, opening of stomata, anti aging of leaves.

20. Ripening of fruits caused by ___________.

21. ___________ promote elongation of stems, breaking the seed dormancy.

22. In 1926 ____________ discovered auxins.

23. The nastic movement of touch me not plant is called __________ or thigmo tropism.

24. Due to _______________ pollen tubes grow to reach ovule.

25. The shoots of creepers bends towards sunlight because of ______________.