Q. Among the following animals, choose the one having three pairs of legs.
1) Spider
2) Scorpion
3) Bug
4) Mite
Q. Two strands of DNA are held together by -
1) hydrogen bonds
2) covalent bonds
3) electrostatic force
4) van der Waals' forces
Q. Which of the following does not possess a specialized conducting tissue for transport of water and other substances in plants?
1) Marchantia
2) Marsilea
3) Cycas
4) Fern
Q. Which one of the following is the example of subsistence farming?
1) Shifting cultivation
2) Commercial farming
3) Extensive and intensive farming
4) Organic farming
Q. Which of the following structures of a plant is responsible for transpiration?
1) Xylem
2) Root
3) Stomata
4) Bark
Q. The sex of a newborn baby is determined by the chromosome inherited from
1) The mother
2) The father
3) Mother's mother
4) Father's father
Q. Which one among the following statements about a healthy diet is correct?
1) Regular eating of high energy snacks between meals is healthy since it provide energy and vitamins in plenty.
2) Fruits and vegetables make a good choice because their energy content is high.
3) A balanced diet must contain plenty of fat and protein with little carbohydrates and fibre.
4) An optimal quantity of fat, protein, carbohydrate with adequate amount of water and fibre makes a healthy diet
Q. The complete digestion of carbohydrates, proteins and fats occurs in
1) Stomach
2) Liver
3) Small Intestine
4) Large Intestine
Q. Which of the following statements about sexual reproduction in flowering plants are correct?
1. Stamen is present in the centre of a flower.
2. Stamen produces pollen grains in the ovary.
3. The swollen bottom part of carpel is the ovary.
4. The fusion of germs cells gives rise to zygote.
Select the correct answer using the code given below.
1) 2, 3 and 4 only.
2) 2 and 4 only.
3) 1 and 3 only.
4) 1, 2, 3 and 4
Q. The human eye is like a camera and hence it contains a system of lens. The eye lens forms
1) A straight or upright, real image of the object on the retina.
2) An inverted, virtual image of the object on the retina.
3) An inverted, real image of the object on the retina.
4) A straight or upright, real image of the object on the iris.
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