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Biology Test 29
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  • Question 1/30
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    A loss of electrical resistance

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    Superconductivity is a material property associated with?
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    0.1 percent

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    In a food chain, the solar energy utilised by plants is only ___ .
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    Methane

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    Gobar gas contains mainly ___.
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    Vitamin-C

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    Which of the following vitamins is water soluble as well as anti-oxidant?
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    On the Origin of Species

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    Darwin explained his theory of evolution in a book called.
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    capsid

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    Outer covering of virus made up of protein is ?
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    secondary xylem

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    Tyloses are found in _______.
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    Fleshy leaves

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    The edible part of an onion is
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    tt×tt?Tt

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    Which one is de novo mutation?
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    A chemical used for the development of food -packaging materials

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    What is Bisphenol A (BPA)?
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    occupy different niches within the tree.

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    Several species of warblers can live in the same spruce tree ONLY because they.
  • Question 12/30
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    Cenozoic

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    Our current era is the:
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    Water is given out during daytime

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    Which one of the following is not related to guttation?
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    insulin

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    Lack of what causes diabetes ?
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    Cancer

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    "It begins as a single cell and grows into a merciless disease that claims millions of lives year after year. But scientists are steadily unlocking its mysteries,and the fight against it may now have reached a dramatic turning point. New discoveries promise better therapies and hope in the war against".... The disease referred to in the above quotation is
  • Question 16/30
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    Sweat glands

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    Birds have no?
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    A mammal

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    A bat is ?
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    Dolphins

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    Most highly intelligent mammals are  ?
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    DNA Topoisomerase

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    DNA gyrase, the enzyme that participates in the process of DNA replication is a type of
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    1 and 4

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    With reference to the  human body, consider the following statements: 1. The production of somatotropin goes up when a person exercises. 2. Men's testes produce progesterone. 3. Women's adrenal glands secrete testosterone. 4. Stress causes the adrenals to release very less amount of Cortisol than usual. Which of these statements are correct ?
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    X-ray induced mutations

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    Muller was awarded Nobel prize in 1946 for his work on:
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    Vitamin C

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    Egg is rich source of nutrients except..
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    are home to all photosynthetic pigments

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    Thylakoid membranes :
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    single layered

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    In root the pericycle is ?
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    1,500,000

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    At the present time, scientists have named approximately ____ species.
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    Alkaline

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    Normal human blood is -
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    exponentially.

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    In countries like India, the human population is growing
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    2,1,3

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    Oxygen transportation in a human body takes place through 1. Blood    2. Lungs   3. Tissue The correct sequence of transportation is
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    Vitamin A

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    Liver oil of fish is rich in...
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    habitat.

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    Polar bears live in the arctic. The arctic is their.
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