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Biology Test 47
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  • Question 1/30
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    120 days

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    Life of a/an RBC in human blood is ___ .
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    two populations share the same environment but cannot interbreed.

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    Populations are said to be sympatric when _______.
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    Colchicine

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    Which one can induce polyploidy?
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    a family

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    A related group of genera comprise.
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    Birds

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    Syrinx is the voice box in ___ .
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    mesophytes

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    Plants that grow under average temperature and moisture are called?
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    1 and 3

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    Which of the following are associated with diabetes mellitus, a common disease in adults ? 1. Higher sugar level in blood 2. Lower sugar level in blood 3. Lower insulin level in blood 4. Higher insulin level in blood Select the correct answer using the codes given below :
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    Plasma membrane

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    Which among the following cell organelles is semi-permeable?
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    salivary glands

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    When we eat something we like, our mouth waters. This is actually not water fluid secreted form.
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    Wool

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    Which of the following is a protein?
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    Mammal

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    The marine animal called dugong which is vulnerable to extinction is a/an
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    antagonistic interactions among individuals in the population

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    Uniform spacing patterns in plants such as the creosote bush are most often associated with which of the following?
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    1,2 and 3 only

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    Consider the following statements: 1. Caffeine,a constituent  of tea and coffee is a diuretic. 2. Citric acid is used in soft drinks. 3. Ascorbic acid is essential for the formation of bones and teeth. 4. Citric acid is a good substitution for ascorbic acid in our nutrition. which of the statements given above are correct ?
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    eyes

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    Trachoma is a disease of the?
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    filariasis

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    Other than spreading malaria, anopheles mosquitoes are also vectors of _______.
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    Oxygen

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    Which of the following is not a green house gas?
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    Bacteria

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    Which one of the following is responsible for converting milk into curd?
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    Non-disjunction

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    Which of the following may result in the presence of an extra chromosome in the cells of a human ?
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    The parasite enjoys the benefits of a relationship in which the host is harmed or killed.

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    Which of the following statements is TRUE about parasites and their relationships with their hosts?
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    Blastopore

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    Gastrula has a pore which is known as _______.
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    A = q, B = r, C = s, D = p

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    Match the names of the economically important plants (or their products) listed in Column-I with the families to which they belong given in column-II. Choose the answer which gives the correct combination of alphabets of the two columns : Column - I                   Column - II A. Sunflower                p. Acanthaceae B. Tulsi                        q. Compositae C. Coffee                     r. Labiatae D. Vasaka                    s. Rubiaceae t. Euphorbiaceae
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    Both children suffer from colour blindness

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    In the context of genetic disorders,consider the following: A woman suffers from colour blindness while her husband does not suffer from it. They have a son and a daughter. In this context, which one of the following statements is most probably correct ?
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    Bat

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    Amongst the following flying organisms, which one does not belong to the group, Aves?
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    T.B.

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    BCG vaccine is used against?
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    14 gram of haemoglobin/100 gram of blood

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    Normal adult human male has?
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    sexual selection

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    During evolution increased ornamentation in male is a result of?
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    Fallopian tube

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    Fertilization occur in
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    exponential growth.

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    During some kinds of population growth, the size of each generation of offspring is larger than the generation before it. So, as the population gets larger, it grows more quickly. This situation is called..
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    Sex chromosome of father/sperm

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    Sex of a child is due to
  • Question 30/30
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    stem cells in the red marrow

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    The production of new blood cells requires the activity of ________.
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