The metamorphosis of tadpoles is not possible if the water in which they are growing does not contain sufficient

• calcium

• oxygen

• iodine

• minerals

Which of the following endocrine glands secretes sugar controlling hormone?

• Adrenal

• Pancreas

• Pituitary

• Thyroid

In Bryophyllum reproduction occurs

• through stem

• through leaf

• through flower

• through root

Uric acid is the excretory product of which of the following?

• Frog, Human

• Bird, Snake

• Amoeba, Starfish

• None of these

Which of the following statement is incorrect regarding the continuous and complete evaluation in the teaching of Science?

• It is constructive evaluation

• It is a cumulative evaluation

• It is carried out once in a year

• It is carried out throughout the year

Which one of the following is an example of non-embryophyta?

• Ephedra

• Pteridium

• Riccia

• Ulothrix

Match List I with List-II and select the correct answer by using the codes given below the list.

List I (Petroleum fraction )	List II ( Composition )
A. Gasoline	I. C8 to C16
B. Kerosene	II. C4 to C9
C. Heavy oil	III. C10 to C18
D. Diesel	IV. C16 to C30

• A	B	C	D
  I	II	IV	III

• A	B	C	D
  II	I	III	IV

• A	B	C	D
  II	I	IV	III

• A	B	C	D
  I	II	III	IV

Which statement is true?

• In plant water and minerals are transported by phloem

• During photosynthesis, oxygen is released from CO₂

• Ultimate source of energy for all the organisms is Sun

• The leaves of Touch-Me-Not (Mimosa pudica) plant exhibit seismonastic movement

59.

After vigorous exercise fatigue is caused due to accumulation of which substance?

• Carbon dioxide

• Alcohol

• Lactic acid

• Water

Insulin hormone converts

• glycogen into glucose

• glucose into glycogen

• fat into glucose

• protein into glucose