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Science M.C.Q. [I MARKS]

Reproduction in Animals · Bihar Board (BSEB) STD 8 (BSEB - English Medium). 20 questions.

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M.C.Q. [I MARKS]

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20 questions · timed · auto-graded

MCQ 11 Mark
Which of the following is not a part of the human male reproductive system?
  • A
    Tests.
  • ✓
    Oviducts.
  • C
    Seminal vesicles.
  • D
    Afoetus.
Answer
Correct option: B.
Oviducts.
Explanation:
Oviducts is not a part of male reproductive system. It is a part of female reproductive system.
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MCQ 21 Mark
Which of the following organisms reproduces by binary fission?
  • A
    Hydra.
  • B
    Yeast.
  • ✓
    Amoeba.
  • D
    Sea anemone.
Answer
Correct option: C.
Amoeba.
Explanation:
Amoeba, a unicellular organism reproduces by binary fission.
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MCQ 31 Mark
Asexual reproduction is:
  • A
    A fusion of specialized cells.
  • B
    A method by which all types of organisms reproduce.
  • ✓
    A method producing generally identical offsprings.
  • D
    A method in which more than one parent are involved.
Answer
Correct option: C.
A method producing generally identical offsprings.
Explanation:
Asexual reproduction is a method producing generally identical offspring.
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MCQ 41 Mark
Reproduction is essential for living organisms in order to:
  • A
    Keep the individual organisms alive.
  • B
    Fulfill their energy requirements.
  • C
    Maintain growth.
  • ✓
    Continue the species for ever.
Answer
Correct option: D.
Continue the species for ever.
Explanation:
Reproduction is one of the important characteristics of living things. The ability of organism to produce young ones of its own kind is called reproduction. It is essential for the continuity of species.
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MCQ 51 Mark
Which of the following animal does not show metamorphosis?
  • ✓
    Fish.
  • B
    Frog.
  • C
    Silk moth.
  • D
    Mosquito.
Answer
Correct option: A.
Fish.
Explanation:
Frog, silk moth and mosquito undergo metamorphosis whereas fish does not show metamorphosis.
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MCQ 61 Mark
Characterstics that are transmitted from parents to offsprings during sexual reproduction show:
  • A
    Only similarities with parents.
  • B
    Only variations with parents.
  • ✓
    Both similarities and variations with parents.
  • D
    Neither similarities nor variations with parents.
Answer
Correct option: C.
Both similarities and variations with parents.
Explanation:
Characters that are transmitted from parents to offspring during sexual reproduction show both similarities and variations with parents.
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MCQ 71 Mark
One of the following occurs reproductive system of flowering plants well as that of humans. This is:
  • A
    Sperm ducts.
  • B
    Anther.
  • ✓
    Ovary.
  • D
    Style.
Answer
Correct option: C.
Ovary.
Explanation:
Ovary is the structure that occurs in the reproductive system of flowering plants as well as of humans. In both of them, it produces female gametes called egg.
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MCQ 81 Mark
The multicellular organism which reproducts by buddings is:
  • A
    Amoeba.
  • B
    Yeast.
  • C
    Paramecium.
  • ✓
    Hydra.
Answer
Correct option: D.
Hydra.
Explanation:
Hydra is a multicellular organism which reproduce by budding.
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MCQ 91 Mark
Which of the following is not an oviparous animal?
  • A
    Snake.
  • B
    Fish.
  • ✓
    Rat.
  • D
    Frog.
Answer
Correct option: C.
Rat.
Explanation:
Snake, fish and frog are oviparous animals whereas rat is viviparous animals.
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MCQ 101 Mark
Fertilization results immediately in the formation of:
  • ✓
    A zygote.
  • B
    An embryo.
  • C
    A placenta.
  • D
    A foetus.
Answer
Correct option: A.
A zygote.
Explanation:
The process by which male and female gametes fuse to each other is called fertilization.
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MCQ 111 Mark
A tadpole develops into an adult frog by the process of:
  • A
    Fertilization.
  • ✓
    Metamorphosis.
  • C
    Embedding.
  • D
    Budding.
Answer
Correct option: B.
Metamorphosis.
Explanation:
The transformation of the larva into an adult through drastic changes is called metamorphosis. Metamorphosis occurs in frog and silk moth.
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MCQ 121 Mark
The offspring formed as a result of sexual reproduction exhibits more variations because:
  • A
    Sexual reproduction is lengthy process.
  • B
    Genetic material comes from two parents of different species.
  • ✓
    Genetic material comes from two parents of same species.
  • D
    Genetic material comes from many parents.
Answer
Correct option: C.
Genetic material comes from two parents of same species.
Explanation:
The offspring formed as a result of sexual reproduction exhibits more variations because genetic material comes from two parents of same species.
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MCQ 131 Mark
In human males, the testes lie in the scrotal sacs outside the body because it helps in the:
  • A
    Process of mating.
  • ✓
    Formation of sperms.
  • C
    Easy transfer of sperms.
  • D
    All the above.
Answer
Correct option: B.
Formation of sperms.
Explanation:
The testes are located outside the abdominal cavity in the scrotum because the temperature of scrotum is less than the normal body temperature which is requires for sperm formation.
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MCQ 141 Mark
In asexual reproduction, two off springs having the same genetic material and the same body features are called:
  • A
    Callus.
  • B
    Twins.
  • C
    Chromosomes.
  • ✓
    Clones.
Answer
Correct option: D.
Clones.
Explanation:
In asexual reproduction, two offspring having the same genetic material and the same body features are called clones.
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MCQ 151 Mark
Tadpole is the larva of:
  • A
    Fish.
  • ✓
    Frog.
  • C
    Mosquito.
  • D
    Butterfly.
Answer
Correct option: B.
Frog.
Explanation:
Tadpole is the larva of frog.
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MCQ 161 Mark
Which of the following is not a viviparous animal?
  • A
    Rat.
  • ✓
    Lizard.
  • C
    Rabbit.
  • D
    Cat.
Answer
Correct option: B.
Lizard.
Explanation:
Rat, rabbit and cat are viviparous animals whereas lizard is a oviparous animal because it lays egg.
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MCQ 171 Mark
Internal fertilization occurs:
  • ✓
    In female body.
  • B
    Outside female body.
  • C
    In male body.
  • D
    Outside male body.
Answer
Correct option: A.
In female body.
Explanation:
Fertilization which takes place inside the female body is called internal fertilization.
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MCQ 181 Mark
The production of an exact copy of an animal by asexual reproduction is known as:
  • A
    Budding.
  • B
    Mating.
  • ✓
    Cloning.
  • D
    Hatching.
Answer
Correct option: C.
Cloning.
Explanation:
Cloning is the production of an animal by asexual reproduction.
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MCQ 191 Mark
The number of nuclei present in a zygote is:
  • A
    None.
  • ✓
    One.
  • C
    Two.
  • D
    Four.
Answer
Correct option: B.
One.
Explanation:
Zygote is the formed due to fertilization of the gametes. During fertilization, the nuclei of the sperm and the egg fuse to form a single nucleus.
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MCQ 201 Mark
One of the following is not a part of the human female reproductive system. This one is:
  • A
    Ovary.
  • B
    Uterus.
  • ✓
    Scrotal sacs.
  • D
    Oviducts.
Answer
Correct option: C.
Scrotal sacs.
Explanation:
Scrotal sac is a part of the human male reproductive system.
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