Q. Which of the following is not naturally occurring plant hormone.

1. $2,4-D$
2. $GA2$
3. Gibberellin
4. IAA

Q. Draw a labelled diagram of the malpighian tubules transfer section.

Q. Night blindness is caused due to deficiency of

1. Vitamin - C
2. Vitamin - A
3. Vitamin - E
4. Vitamin - D

Q. Match the column.

Q. Write the name of excretory organs and draw a labelled diagram of excretory system in humans.

Q. The secretion of HCl and gastric juice is controlled by ........... hormone.

Q. ........... bacterium is found in the roots of leguminous plants.

Q. Write only the name of classification of the plants on the basis of temperature.

Q. Write the two functions of pericardial fluid.

Q. Draw a labelled diagram of the pollen grain.

Q. Name any plants in which stem is modified into leaf like structure and leaves are modified into spines.

Q. What is succession? What are its type? Write any two stages.

Q. Write only the name of male reproductive organs and female reproductive organs of humans.

Q. $N{H}_4^{+}+{30}_2\stackrel{Nitrosomonas}{\to }$ ____ $+2H_{2}O+Energy$.

Q. Write any one cause of uncontrolled population growth.

Q. What is death? Write main reason of death.

Q. Write the classification of animals on the basis of excretory substance.

Q. Soyabean is a ........... plant.

Q. Draw a labelled diagram of the cardiac muscles.

Q. Transpiration is higher in which of the following plant?

1. Hydrophytes
2. Xerophytes
3. Mesophytes
4. All of the above

Q. In which animals Ranikhet disease occur.

Q. Write only the name of different stages of human reproduction.

Q. Write any two important difference between short day plants and long day plants.

Q. What is net gain of energy from oxidation of one mole glucose in oxirespiration and unoxirespiration?

Q. Explain the four adaptation of xerophyte.

Q. Write any two difference between hypogeal germination and epigeal germination.

Q. Useful vaccination for protection from pertussis, diphtheria and tetanus.

1. MMR
2. DPT
3. BCG
4. STD

Q. Write four main difference between bone and cartilage.

Q. Write the two types of mimicry.

Q. Pollination takes place by the agency of bird is known as