HOTS

1. Arrange the following sequence on the basis of their location from midbrain:

Spinal cord, Pons,and Medulla

2. Ranveer rides a bicycle maintaing posture and body equilibrium. Identify the part of brain which controls this activity.

3. Upon adrenalin movement along with blood stream, the blood supply to which two pody parts is reduced?

4. What could be the possible disadvantage if reflex action were controlled by the brain?

5. A Doctor advised a patient to take less sugar in her diet. Which disease is she suffering from?Which body organ and connective tissue is related with it.

6. A particular hormone requires iodine for its synthesis. Name the endocrine gland which secretes this hormone and states it's location in the human body.

7. An element of halogen family is compulsorily added to common salt in small quantity. Identify the element. Also name the disease caused by it's deficiency and write one symptom of this disease.

8. How do the germ cells differ from each other in complex living organisms.
9. Write about the post fertilisation stages in plants.
10. Which part of of the seed form root and shoot?
11. Explain why:
a). When air is taken in & ket out during breathing, the lungs always contain a residual volume of air.
b). Herbivores need a longer small intestine whereas carnivores have a shorter small intestine.
12. Why is it necessary to separate oxygenated and deoxygenated blood into mammals and birds?
13.Distinguish betweenthe movement of leaves of the sensitive plants and movement of shoot towards light.
14.In which form does the wastes are excreted out through human body by kidney.
15. If harmful chemicals enters the food chain comprising cat, mice,and plants. which of these organism is likely to have the maximum conc. of harmful chemicals in iy's body.