1. Assertion (A) : Mammals give birth to their young ones. Reason (R) : Platypus is an egg-laying mammal.
2. Assertion (A) : The Arthropods have an open circulatory system. . Reason (R) : The cells and tissues are bathed in blood.
3. Order is a number of related families having common characters are placed in an order.
4. ________ have gill slits but do not have notochord.
5. The notochord extends throughout the entire length of the body................
6. What is the binomial name of tapeworm?
7. Choose the correct terms related to Hemichordate..
8. A meristematic tissue consists of................
9. Two long bones of the hand are dislocated in a person who met with an accident. Which among the following may be the possible reason?
10. Which muscles act involuntarily? (i) Striated muscles (ii) Smooth muscles (iii) Cardiac muscles (iv) Skeletal muscles
11. In a certain type of cell division, the diploid number of chromosomes is reduced to half. This kind of division occurs in.........
12. The function of phloem fibres is …………….to the plant body.
13. Tendon connects ................
14. A growing seedling is kept in the dark room. A burning candle is placed near it for a few days. The tip part of the seedling bends towards the burning candle. This is an example of ……………
15. The root of the plant is ………………… i) positively phototropic but-negatively geotropic ii) positively geotropic but negatively phototropic iii) negatively phototropic but positively hydrotropic iv) negatively hydrotropic but.positively phototropic
16. The non-directional movement of a plant part in response to temperature is called………………..
17. Sunflowers open the petals in bright light during the day time but close the petals in dark at night. This response of sunflowers is called ……………………
18. A plant is kept in a dark room for about 24 hours before conducting any experiment on photosynthesis in order to ……………………
19. If pepsin is lacking in gastric juice, then which event in the stomach will be affected?
20. …………………… is the smallest gland.
21. The act of bringing swallowed food back to the mouth..............
22. Excretion means …………………….
23. Which is a pear-shaped muscular organ in females?
24. Assertion: Urea is excreted out through the kidneys. Reason: Urea is a toxic substance.
25. The maximum amount of energy provided by carbohydrate is …………………….
26. There are ………………. essential amino acids required by the human body through the diet.
27. Pellagra is a deficiency disease, choose the vitamin related to it...........
28. Assertion (A): Fruits and vegetables are placed at the bottom of a food pyramid. Reason (R): They must be consumed in more quantities for good health.
29. Assertion (A): Bananas are kept at room temperature. Reason (R): In a refrigeration-bananas ripen fast.
30. World Food Day is celebrated on ………………
31. Microbes that generally enter the body through nose are likely to affect..............
32. Assertion: Dengue can be treated by intake of antibiotics. Reason : Antibiotics blocks the multiplication of viruses.
33. Assertion : Chicken pox is a disease indicated by scars and marks in the body. Reason : Chicken pox cenlses rashes on face and further spreads throughout
34. Rhizobium, associated with root nodules of leguminous plants fixes atmospheric nitrogen.
35. Which of the following is transmitted through air?
36. One of the means of indirect transmission of a disease is..................
37. Which one of the following is not an exotic breed of cow?
38. Which Indian variety of honeybee is commonly used for apiculture?
39. Olericulture refers to the farming of ………………..
40. India is the ………………..largest producer of vegetables next to China.
41. Tuber rose is cultivated from ………………..
42. Azolla having a cyanobacterial symbiotic association with ………………..
43. Reserpine is derived from ………………
44. ………………..are low in fibre and contain a high level of carbohydrates, protein, and other.
45. All the factors of biosphere which affect
46. The ice sheets from the north and south poles and the icecaps on the mountains, get converted into water vapour through the process of ………………..
47. Increased amount of ……………….. in the atmosphere, results in greenhouse effect and global warming.
48. In some xerophytes, leaves are modified into spines as an adaptation ……………..
49. Specific constituents such as nitrogen, phosphorus, suspended solids and heavy metals found in the wastewaer are removed during …………….. treatment of water recycling process.
50. Free-living soil bacteria such as Pseudomonas sp. are responsible for the ……………..process in the nitrogen cycle.
