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Diversity in Living Organisms Test - 24

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Diversity in Living Organisms Test - 24
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  • Question 1
    1 / -0
    Which of the following taxonomic ranks contains organisms most similar to one another?
    Solution

    • All four options belong to biological classification, wherein species is a taxonomic rank that lies at the lowest level below family, genus & class. 
    • It is the basic unit of classification. The organisms in rank species are mostly similar to one another and can interbreed.

    So, the correct answer is option D.

  • Question 2
    1 / -0
    Life cycle is haplontic in
  • Question 3
    1 / -0
    What is true about angiosperms ?
    Solution
    • The seeds of Angiosperms are covered by fruits and not naked.
    • They have well developed vascular tissue.
    • They do not fall under Cryptogams. They are Phanerogams.
    Hence the correct option is C.
  • Question 4
    1 / -0
    The number of chambers in the heart of a frog is/are _____.
    Solution
    • The frog heart is divided into 3 chambers two atria and a single ventricle. 
    • The atrium receives deoxygenated blood from the blood vessels (veins) that drain the various organs of the body. 
    • The left atrium receives oxygenated blood from the lungs and skin (which also serves as a gas exchange organ in most amphibians).
    • Both atria open into a single ventricle due to which there is mixing of Oxygenated and deoxygenated blood. 
    Therefore, the correct answer is option C.
  • Question 5
    1 / -0
    Duck-billed platypus and Echidna are ________
    Solution
    Mammals give birth to young ones. However, a few of them, like the Platypus and the Echidna lay eggs.
  • Question 6
    1 / -0
    Vertebral column is found in ________________. 
    Solution
    The vertebral column, also known as the backbone or spine, is a bony skeletal structure found in vertebrates. It is formed from individual bones called vertebrae, which houses the spinal canal, a cavity that encloses and protects the spinal cord. Therefore, (d) is the correct answer. 
  • Question 7
    1 / -0
    Which among these is not an oviparous animal?
    Solution
    Oviparous animals are the organisms that lay eggs and the young ones hatch out from the eggs whereas humans are viviparous, meaning they directly birth to young ones.
    So, the correct answer is option A.
  • Question 8
    1 / -0
    Which of the following list contains only hemichordates?
    Solution
    Earthworm is an annelid, hydra is a coelenterate, liverfluke is a platyhelminthes, acorn worm (Balanoglossus, Saccoglossus) is a hemichordate belonging to class Enteropneusta.
  • Question 9
    1 / -0
    Which of the following are the correct distinguishing point between Amphibia and Pisces?

    AmphibiaPisces
    1They do not have scales on their body1They have scales on their body
    2Heart is 3 chambered2Heart is 2 chambered
    3They are oviparous 3They are viviparous
    4They can live only on land4They can live only in water
    Solution
    The correct answer is a. 1 & 2 are the correct distinguishing points between Amphibians and fishes.
    Point 3 & 4 are incorrect because both Amphibians and Pisces are oviparous and Amphibians can live in both water as well as on land.
  • Question 10
    1 / -0
    The skin in amphibians has ____________.
    Solution
    The skin of amphibians is smooth or rough having cutaneous glands which keep it moist. They are usually without scales, but if present they are hidden beneath the skin (eg., Caecilians). Hence, option B is correct.  
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