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    What is syllabus for NDA for biology student?
    Supriya Kumari 18th Mar, 2019

    Hello,

    The syllabus for the candidates appearing for any stream is the same as others. Candidates will have appear for Mathematics as well as General Ability Test (GAT). The detailed syllabus of NDA 2019 is given below.

    NDA Mathematics Syllabus

    • Algebra -Representation of real numbers on a line, Complex numbers—basic
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    260 Views

    Modifications of mouth parts present in insects?
    masteranshu27 17th Mar, 2019
    a. Sponging Type - Mandible is absent. The insect having sponging type mouth, feeds on (sugar) food by dissolving it in saliva and sucking the liquified food. Eg. Housefly

    b. Piercing and Sucking Type - Piercing is via proboscis, which is actually the modification of labium. Eg. Mosquitos, bedbugs

    c.
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    79 Views

    Differences between frog and toad?
    masteranshu27 17th Mar, 2019
    Frog -
    a. Diurnal
    b. Lives in or near water
    c. Teeth are present in upper jaw.
    d. Bifid tongue is present.
    e. Webs are wel-developed.
    f. Body is longer in size.
    g. Head is triangular in shape.
    h. Parotid glands are absent.
    i. Skin is moist, smooth and slimy.
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    98 Views

    Differences between tortoise and turtle?
    masteranshu27 17th Mar, 2019
    Tortoise-
    a. It is usually larger in size.
    b. Oval carapace is present.
    c. Head can be completely withdrawn into the shell.
    d. Habitat - Semiterrestrial and fresh water
    e. Forelimbs and hindlimbs are not modified into paddles.

    Turtle-
    a. It is comparatively smaller in size.
    b. Heart-shaped carapace is
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    1418 Views

    Differences between Lamprey and Hagfish?
    masteranshu27 17th Mar, 2019
    Lamprey -
    a. 7 pairs of gill slits are present.
    b. 10 pairs of cranial nerves are present.
    c. Brain is better developed.
    d. It exhibits indirect development.
    e. Unisexual
    f. Two semi-circular canals are present.
    h. Habitat - marine as well as fresh water

    Hag fish -
    a. 6-15
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    1730 Views

    Differences between urochordata and cephalochordata?
    masteranshu27 17th Mar, 2019
    Urochordata -
    a. Excretion is via neural gland.
    b. Open circulatory system is present.
    c. Notochord is present in the tail of larva.
    d. Notochord disappears in the adult.
    Eg. Herdmania, Ascidia, Salpa, Pyrosoma

    Cephalochordata -
    a. Excretion is via protonephridia (solenocytes). b. Closed circulatory system is present.
    c. Notochord
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    1070 Views

    Why are sponges called filter feeders?
    masteranshu27 17th Mar, 2019
    Sponges (Poriferans) receive (incoming) food particles with the help of collar cells (choanocytes). These collar cells or choanocytes are surrounded by microvilli which filter the incoming food particles. Therefore, sponges/Poriferans are called filter feeders.
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    68 Views

    Modifications of amebocytes in Poriferans?
    masteranshu27 17th Mar, 2019
    Ameobocytes are modified into the following types -

    a. Archaeocytes - Undifferentiated totipotent cells

    b. Trophocytes - Food providing cells or nurse cells

    c. Thesocytes - Food storing cells

    d. Myocytes - Form a ring around the osculum and help in closing and opening of osculum

    e. Chromocytes - Pigments
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    148 Views

    Can a biology student with biotechnology can take admission in motilal nehru NIT prayagraj without giving JEE exam?
    APOORVA SOPHIA XALXO 17th Mar, 2019

    Hello,

    Yes a biology student can get admission in biotechnology course in Motilal Nehru NIT, prayagraj but the only way to get admission is by giving JEE MAINS exam. 

    If you score good marks in JEE MAINS then only you will be called for admission. Assuming you're a general category

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    50 Views

    Is biology is must for attending this aptitude test!
    Srishti Mehta 16th Mar, 2019

    Hello Kishore

    Please mention the name of the test you are talking about. Without knowing that we won't be able to help you adequately.

    Please make your query more specific so that we can help you more precisely.

    Thanks for contacting us.

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