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Earn 100
Beads on string like structures of A are seen in B, which further condense to form chromosomes in C stage of cell division. Identify 'A', 'B' and 'C'.
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Important Questions on Practice Papers - I
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Match column I with column II and select the correct option from the codes given below.
| Column I | Column II | ||
| A. | Choanocytes | (i) | Platyhelminthes |
| B. | Cnidoblasts | (ii) | Ctenophora |
| C. | Flame cells | (iii) | Porifera |
| D. | Nephridia | (iv) | Coelenterata |
| E. | Comb plates | (v) | Annelida |
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Read the following statements and select the correct option.
A. Blood cells secrete fibres of structural proteins called collagen or elastin.
B. Neuroglial cells protect and support the nephrons.
C. Osteocytes are present in spaces called lacunae.
D. Striated muscle fibres are bundled together in a parallel fashion.
E. Biceps are involuntary and striated.
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Male cockroach differs from female cockroach in having
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The gastric juice contains
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Pick the correct statement.
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If the systolic pressure is Hg and diastolic pressure is , the pulse pressure is_____
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Select the correct statement.
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The type of joint present between the humerus bone and the pectoral girdle is
