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Biology Test 34
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  • Question 1/30
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    chromosomes

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    During mitosis, the cell duplicates its _____, the strands of DNA found in its nucleus.
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    Moth has feathery antennae but butterfly has club shaped antennae.

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    How do you differentiate a butterfly from a moth?
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    Wool

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    Alpha -keratin is a protein present in
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    Muscles of heart

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    Intercalated disc is found in:
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    Composition

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    Which of the following terms is NOT a category for biological classification?
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    Homologous chromosomes

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    A pair of morphologically similar chromosomes is known as?
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    Ronald Ross

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    Who discovered the germ of malaria?
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    Calcium oxalate

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    The 'Stones' formed in human kidney consist mostly of
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    plants

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    Phloem is a tissue found in  ____.
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    Rifampicin

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    Which one of the following antimicrobial drugs is suitable for treatment of both tuberculosis and leprosy ?
  • Question 11/30
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    Both A and R are true and R is the correct explanation of A

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    Assertion (A): Amoeba reproduced by fission.Reason (R): All unicellular organ-isms reproduce by asexual methods.
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    materials are cycled through ecosystems; energy is not.

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    The fundamental difference between materials and energy is that
  • Question 13/30
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    phosphoglycerate

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    The compound identified by Calvin, Benson, and Bassham as the first one made by CO2 fixation is:
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    Endothermic Action

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    Which of the following actions is related with evaporation of sweat ?
  • Question 15/30
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    Calcium phosphate

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    What is the main component of bones and teeth ?
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    Statement A is correct and B is wrong

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    Read the following statements A and B. A: Many organs of aquatic plants float in water. B: Large air gaps are present in the collenchyma tissues of lotus leaf. Select the correct answer.
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    1,2,3 and 4

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    Consider the following 1. Rice fields   2. Gold mining    3. Domestic Animals  4. Wetlands Which of the above are sources of methane a major greenhouse gas ?
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    Polio and Bird Flu

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    Diseases of which of the following pairs are caused by virus?
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    Lactose

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    The sugar present in milk is _______.
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    Blockage of xylem

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    Wilting in plants occurs due to?
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    Agrobacterium tumefaciens

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    Which one of the following bacterium is used for production of transgenic plants?
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    Calcium, potassium and iron

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    Besides proteins and carbohydrates, other elements of nutritional value found in milk include
  • Question 23/30
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    Frog has no parotid glands but toad has a pair of parotid glands

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    How do you differentiate a frog from a toad ?
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    Living organisms modify their environment a little at a time.

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    Which of the following occurs during the ecological succession of an ecosystem?
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    The Galapagos Islands

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    Where did Darwin observe closely related species of finches and closely related species of tortorises?
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    Zymase

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    The enzyme that converts glucose to ethyl alcohol is ______ .
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    phospholpids and proteins

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    Cell membrane is a mosaic of..
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    BAP

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    Which one of the following is NOT an antitranspirant?
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    a density-independent limiting factor

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    The graph in Figure 5-3 shows the changes in a mosquito population. What caused the changes seen in the graph?
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    7.35-7.45

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    What is the ph level of blood of a normal person ?
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