1. A
   Scoliodon sp.
2. B
   Petromyzon sp.
3. C
   Exocoetus sp.
4. D
   Branchiostoma sp.

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1. A
   A(III), B(IV), C(I), D(II)
2. B
   A(I), B(II), C(III), D(IV)
3. C
   A(II), B(IV), C(III), D(I)
4. D
   A(II), B(IV), C(I), D(III)

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1. A
   A(III), B(IV), C(I), D(II)
2. B
   A(IV), B(II), C(I), D(III)
3. C
   A(IV), B(III), C(I), D(II)
4. D
   A(III), B(IV), C(II), D(I)

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1. A
   300 – 500/cu mm and 1200 – 1500/cu mm respectively
2. B
   160 – 240/cu mm and 1600 – 2000/cu mm respectively
3. C
   300 – 500/cu mm and 500 – 700/cu mm respectively
4. D
   100 – 120/cu mm and 160 – 200/cu mm respectively

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1. A
   A–III, B–II, C–IV, D–I
2. B
   A–II, B–III, C–I, D–IV
3. C
   A–II, B–III, C–IV, D–I
4. D
   A–III, B–II, C–I, D–IV

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1. A
   Emphysema
2. B
   Alzheimer's disease
3. C
   Rheumatoid arthritis
4. D
   Cystic fibrosis

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1. A
   Devil fish, Cuttlefish and Hagfish
2. B
   Saw fish, Fighting fish and Dog fish
3. C
   Starfish, Hagfish and Cuttlefish
4. D
   Flying fish, Angel fish and Fighting fish

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1. A
   A and C only
2. B
   B and E only
3. C
   C and D only
4. D
   B and D only

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1. A
   Ribosomes
2. B
   Lysosomes
3. C
   Centrosomes
4. D
   Mitochondria

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1. A
   $\frac{dN}{dt} = rN\left(\frac{K+N}{K}\right)$
2. B
   $\frac{dN}{dt} = rN\left(\frac{K-N}{K}\right)$
3. C
   $\frac{dN}{dt} = rN\left(\frac{K-N}{N}\right)$
4. D
   $\frac{dN}{dt} = rN\left(\frac{K}{K-N}\right)$

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1. A
   C and D only
2. B
   A and B only
3. C
   A and E only
4. D
   B and C only

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1. A
   A–II, B–III, C–I, D–IV
2. B
   A–IV, B–III, C–II, D–I
3. C
   A–III, B–II, C–IV, D–I
4. D
   A–II, B–III, C–IV, D–I

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1. A
   A–II, B–I, C–IV, D–III
2. B
   A–I, B–II, C–IV, D–III
3. C
   A–II, B–I, C–III, D–IV
4. D
   A–III, B–II, C–I, D–IV

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1. A
   GUG
2. B
   AUG
3. C
   GAG
4. D
   CAG

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1. A
   C and D only
2. B
   A and B only
3. C
   C and E only
4. D
   A, B, D and E only

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1. A
   B and E only
2. B
   B, C and E only
3. C
   C, D and E only
4. D
   A, B and D only

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1. A
   A and E only
2. B
   C and E only
3. C
   A, C and E only
4. D
   B, C and D only

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1. A
   Distal convoluted tubule and efferent renal arteriole
2. B
   Proximal convoluted tubule and efferent renal arteriole
3. C
   Proximal convoluted tubule and afferent renal arteriole
4. D
   Distal convoluted tubule and afferent renal arteriole

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1. A
   Female wasp and fig
2. B
   Ophrys and bumblebee
3. C
   Sea anemone and clown fish
4. D
   Cuckoo and crow

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1. A
   A, B and C only
2. B
   B and D only
3. C
   B and C only
4. D
   A, C and E only

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1. A
   A-IV, B-II, C-III, D-I
2. B
   A-II, B-III, C-IV, D-I
3. C
   A-III, B-II, C-IV, D-I
4. D
   A-II, B-IV, C-III, D-I

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1. A
   females and males, respectively
2. B
   all males
3. C
   males and females, respectively
4. D
   all females

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1. A
   Male honeybees
2. B
   Male earthworms
3. C
   Male frogs
4. D
   Male grasshoppers

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1. A
   D, B, A, C
2. B
   C, A, D, B
3. C
   C, A, B, D
4. D
   A, C, B, D

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1. A
   The production of large amount of CO$_2$ by Propionibacterium sharmanii
2. B
   The production of large amount of CO$_2$ by Clostridium butylicum
3. C
   The production of large amount of CO$_2$ and H$_2$ by lactic acid bacteria called Lactobacillus
4. D
   The production of large amount of CO$_2$ and H$_2$ by Trichoderma polysporum

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