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2022 · Q97Science & TechnologyBiologyeasy

Which one of the following statements best describes the role of B cells and T cells in the human body ?

  1. (a)They protect the body from environmental allergens.
  2. (b)They alleviate the body’s pain and inflammation.
  3. (c)They act as immunosuppressants in the body.
  4. (d)They protect the body from the diseases caused by pathogens.
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Official answer(d) They protect the body from the diseases caused by pathogens.

2020 · Q47Science & TechnologyBiologyeasy

Which of the following statements are correct regarding the general difference between plant and animal cells ? 1. Plant cells have cellulose cell walls whilst animal cells do not. 2. Plant cells do not have plasma membrane unlike animal cells which do. 3. Mature plant cell has one large vacuole whilst animal cell has many small vacuoles. Select the correct answer using the code given below :

  1. (a)1 and 2 only
  2. (b)2 and 3 only
  3. (c)1 and 3 only
  4. (d)1, 2 and 3
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Official answer(c) 1 and 3 only