Biology MCQs with answers Page - 82

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Q. The horizonatally growing hyphae of Rhizopus are called

  • (A) Rhizoids
  • (B) Stolons
  • (C) Sporangiophores
  • (D) Holdfast

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Q. Which one of the following scientists first time saw bacteria through a microscope made by himself ?

  • (A) Antonie Van Leeuwenhoek
  • (B) Louis Pasteur
  • (C) Robert Hooke
  • (D) Robert Virchow

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Q. The unicellular algae used to supply and regulate the oxygen in space programmes is

  • (A) Spyrogyra
  • (B) Chlorella
  • (C) Ulothrix
  • (D) Odogonium

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Q. Amoeba moves in water with the help of locomotory organs called

  • (A) Setae
  • (B) Tube feet
  • (C) Pseudopodia
  • (D) Flame cell

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Q. Bacteria are (were) considered more as plants than animals because of the presence of

  • (A) Small nucleus
  • (B) Plasma membrane
  • (C) Cell wall
  • (D) Spore formation

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Q. The enzyme that splits polysaccharides in the mouth is

  • (A) Invertase
  • (B) Zymase
  • (C) Amylase
  • (D) Sucrose

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Q. Which of the following is likely during vigorous exercise?

  • (A) Blood flow to the kidneys increases.
  • (B) capillaries of the active muscles will be engorged with blood.
  • (C) The skin will be cold and clammy.
  • (D) Blood will be diverted to the digestive organs.

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Q. The longest period of prenatal development is the

  • (A) Germinal period
  • (B) Fetal period
  • (C) Embryonic period
  • (D) None

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Q. The term biodiversity refers to

  • (A) Range of genetic variation within a population
  • (B) Total number of different species within a habitat
  • (C) Both A & B
  • (D) None of the above

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Q. What is scientific name of " Tulsi " ?

  • (A) Gossypium Herbaceum
  • (B) Ocimum Sanctum
  • (C) Zea Mays
  • (D) Cojonus Cgjan

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