Q1. Osteocytes are found in
(a) Bone
(b) Blood
(c) Cartilage
(d) Lymph
Q2. Which of the following vertebrates lack exoskeleton?
(a) Amphibia
(b) Mammalia
(c) Aves
(d) Chondrichthyes
Q3. Which of the following organelles is called ‘Atom bombs’?
(a) Microtubules
(b) Nucleolus
(c) Golgi bodies
(d) Lysosome
Q4. Minamata disease was caused by:
(a) Mercury
(b) Lead
(c) Cadmium
(d) Zinc
Q5. Cadmium pollution is associated with:
(a) Minamata disease
(b) Black foot disease
(c) Dyslexia
(d) Itai-itai
Q6. The segments of DNA or RNA coding for protein are called
(a) Codon
(b) Muton
(c) Intron
(d) Exon
Q7. ‘Pigeon milk’ is produced by
(a) Crop
(b) Birds
(c) Mammals
(d) All of the above
Q8. The largest internal organ of human body is:
(a) Heart
(b) Brain
(c) Liver
(d) Kidney
Q9. What causes common cold?
(a) Bacteria
(b) Fungi
(c) Virus
(d) Protozoa
Q10. The food conducting tissue of a plant is
(a) Phloem
(b) Xylem
(c) Parenchyma
(d) Collenchyma
Q11. A plant which reproduces by means of spores
(a) Mustard
(b) Coriander
(c) Ferns
(d) Petunia
Q12. Male mosquitoes
(a) Suck blood
(b) Feed on plant juices
(c) Spread encephalitis
(d) Spread malaria
Q13. Which are not included in the milk-teeth in a child of 3-4 years?
(a) Incisors
(b) Canines
(c) Molars
(d) Premolars
Q14. Insufficient dietary iodine can cause
(a) Cretinism
(b) Giant build
(c) Enlarged thyroid
(d) Small thyroid
Q15. Opium is a plant product obtained from
(a) dried leaves
(b) dried latex
(c) roots
(d) stem bark
