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Reproduction in Animals Test - 15

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Reproduction in Animals Test - 15
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  • Question 1
    1 / -0
    The diagram given shows a special method of reproduction in an organism. Which of the following organism also reproduces in a similar way?

    Solution
    The diagram depicts asexual reproduction by budding. Budding is a mode of asexual reproduction in which a new organism is developed from an outgrowth or bud developed on the parent's body. A mature bud detaches from the parent and grows as a new individual. Hydra, yeast reproduce through budding.
    Thus the correct answer is option B.
  • Question 2
    1 / -0
    ......................... reproduction causes greater diversity.
    Solution
    • Sexual reproduction causes greater genetic diversity because the sperm and egg with a different set of genes fuse to form new individuals and further mix the genes to produce more genetic diversity. 
    • Asexual reproduction is the process where one organism divides into two without shuffling its genes, so the new individual has the same version of genes as the parent. 
    • Vegetative propagation is also a type of asexual reproduction in higher plants, especially angiosperms. It is the process of formation of new plants from the detached vegetative parts of the parent plant that mean the new plants have genetic material inherited from a single parent.

        Thus, the correct answer is option A.
      • Question 3
        1 / -0
        Asexual reproduction produces new individuals that are:
        Solution
        Asexual reproduction is a mode of reproduction in which a single parent produces organisms that will be an exact copy of their parent and the other newly formed organisms as well.
        Thus, the correct answer is option C.
      • Question 4
        1 / -0
        Both hens and frogs are ______________ animals.
        Solution
        Oviparous animals are animals that reproduce by laying eggs. Hens and frogs both lay eggs and hence are oviparous.
        Viviparous animal gives directly birth to young ones, eg. humans.
        The ovoviviparous animal lays eggs but the embryo within the egg is developed in the mother's body, eg. snakes.
        So, the correct answer is option A.
      • Question 5
        1 / -0
        New individuals formed by asexual method of reproduction have greater similarity among themselves, because:
        Solution
        In asexual reproduction, only a single parent is involved and the new individual develops directly from its parent by cell division, fragmentation, budding, etc. This results in passing the same genes from generation to generation. Thus, organisms formed by asexual reproduction have similarities among themselves. 
        So, the correct answer is option A.
      • Question 6
        1 / -0
        The development of embryo inside an egg is called as:
        Solution
        Vivipary is the development of the embryo inside the body of the mother, eventually leading to live birth.
        Carnivorous are animals that feed on animal flesh.
        Omnivorous are animals that feed on both plants and animals.
        Ovipary is the method of reproduction in which eggs are laid and embryos develop outside the mother's body, each egg eventually hatching into a young animal.
        So, the correct answer is option D.
      • Question 7
        1 / -0
        Which of the following processes involves fertilization?
        Solution
        Fertilization is a process of fusion of gametes to produce new individual, which is generally the form of sexual reproduction.
        Asexual reproduction is a mode of reproduction by which single parent produces new individuals without fertilization. And so in asexual reproduction, fertilization essentially is not required. Metamorphosis is the stepwise development of organisms from their larval stage to the adult stage as seen in frog.
        Thus, the correct answer is option C.
      • Question 8
        1 / -0
        Egg-laying animals are known as:
        Solution
        • Oviparous animals lay eggs and the offspring development takes place outside the animal's body. (Example: Birds).
        • Viviparous animals are those that give birth to young ones. (Example: Human beings).
        • Sterile organisms are those which are not able to reproduce. (Example: Mule).
        • Hermaphrodite is an organism that has reproductive organs of both sexes. (Example: Earthworm).
        So, the correct answer is option B.
      • Question 9
        1 / -0
        The larva of silkworm is called _____.
        Solution
        The female silk moth lays eggs, from which hatch larvae which are called caterpillars or silkworms.
        Thus, the correct answer is (B).
      • Question 10
        1 / -0
        Which of the following animals are correctly categorized?
        OviparousViviparous
        A. Human, CowSnake, Pigeon
        B. Hen, SnakeHuman, Crocodile
        C. Pigeon, Crocodile Rat, Horse
        D. Toad, EarthwormCockroach, Cat
        Solution
        • Oviparous are the animals that lay eggs and embryonic development majorly takes place outside the body of the mother. For e.g. - pigeon and crocodile etc.
        • Viviparous are the animals that give birth to live young ones that have developed inside the body of the female parent, for e.g. - rats and horses etc.
        • In option A, humans and cows are viviparous while snakes and pigeons are oviparous.
        • In option B, crocodile is oviparous.
        • In option C, cockroaches are oviparous.

        So, the correct answer is option C.
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