Biology MCQs with answers Page - 61

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Q. Which statement describes decomposers?

  • (A) Decomposers are insignificant organisms in the ecosystem and can be absent in some ecosystems
  • (B) Decomposers can produce their own source of energy and can sometimes act as primary producers
  • (C) Decomposers are those organisms that recycle matter in the ecosystem
  • (D) All the above

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Q. A species inhabiting different geographical areas is known as

  • (A) Allopatric species
  • (B) Sympatric species
  • (C) Bio species
  • (D) Sibling species

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Q. Lichen is a composite combination of two organisms.

  • (A) Fungi and Bryophyta
  • (B) Fungi and Fern
  • (C) Algae and Bryophyta
  • (D) Algae and Fungi

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Q. Nitrogen Fixation is carried out primarily by

  • (A) Plants
  • (B) Humans
  • (C) Consumers
  • (D) Bacteria

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Q. Organisms that depend only on raw plant products are said to be

  • (A) Herbivorous
  • (B) Vegetarian
  • (C) Carnivorous
  • (D) Omnivorous

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Q. The scientific study of how organisms interact with their environment is called

  • (A) Ecology
  • (B) Evolution
  • (C) Zoology
  • (D) None of the above

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Q. The technique that is useful in detecting abnormalities of the uterus and fallopian tubes is

  • (A) salpingography
  • (B) hysterography
  • (C) hysterosalpingography
  • (D) fallopian tube recannulation

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Q. Which of the following is not a correct combination?

  • (A) Diplonema, anaphase I, telophase I, mitosis
  • (B) Prophase, metaphase, anaphase, telophase
  • (C) Leptonema, zygonema, pachynema, diplonema
  • (D) Prophase II, metaphase II, anaphase II, telophase II

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Q. Consider the following statements:
1.All enzymes play a functional role in living systems.
2.Enzymes contain peptide linkages.
3.Enzymes belong to the family of carbohydrates.
4.Enzymes can easily be synthesized.
The correct statement(s) is/are

  • (A) 1, 2 and 3 only
  • (B) 2 only
  • (C) 1 and 2 only
  • (D) 1, 2, 3 and 4

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Q. One of the following is not a function of bones.

  • (A) Protection of vital organs
  • (B) Place for muscle attachment
  • (C) Secretion of hormones for calcium regulation in blood and bones
  • (D) Production of blood corpuscles

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