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Structural Organisation in Animals · Question 1

NEET (UG) 2026MCQMedium📈 Topic in 38% papers+4−1
1

Choose the correct statements regarding frog's anatomy: Choose the correct answer from the options given below:

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

Answer

(4) A, C and E only

Solution

A is correct: the hepatic portal system links the intestine and liver.

B is wrong: frogs have ten pairs of cranial nerves.

C is correct: in female frogs ureters and oviducts open separately into the cloaca.

D is wrong: optic lobes belong to the mid-brain; the hind-brain has cerebellum and medulla oblongata.

E is correct: the sinus venosus opens into the right atrium.

Correct: A, C and E.

Answer: (4)

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2

Male frogs can be distinguished from female frogs due to the presence of: Choose the correct answer from the options given below:

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

In water, frogs respire using .

  1. trachea
  2. skin
  3. buccal cavity
  4. lungs
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4

In frogs, the number of pairs of cranial nerves arising from the brain are .

  1. 12
  2. 6
  3. 9
  4. 10
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5

In frog, the Renal portal system is a special venous connection that acts to link:

  1. Kidney and intestine
  2. Kidney and lower part of body
  3. Liver and intestine
  4. Liver and kidney
NEET (UG) 2025
6

Frogs respire in water by skin and buccal cavity and on land by skin, buccal cavity and lungs. Choose the correct answer from the following :

  1. The statement is false for water but true for land
  2. The statement is false for both the environments
  3. The statement is true for water but false for land
  4. The statement is true for both the environments
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7

What is the name of the blood vessel that carries deoxygenated blood from the body to the heart in a frog?

  1. Pulmonary vein
  2. Vena cava
  3. Aorta
  4. Pulmonary artery
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8

Which of the following statements is correct about location of the male frog copulatory pad?

  1. Second digit of fore limb
  2. First digit of the fore limb
  3. First and Second digit of fore limb
  4. First digit of hind limb
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9

In both sexes of cockroach, a pair of jointed filamentous structures called anal cerci are present on

  1. 5th segment
  2. 10th segment
  3. 8th and 9th segment
  4. 11th segment
NEET (UG) 2024
10

Three types of muscles are given as a, b and c. Identify the correct matching pair along with their location in human body: [Figure] Name of muscle/location

  1. (a) Smooth - Toes (b) Skeletal - Legs (c) Cardiac - Heart
  2. (a) Skeletal - Triceps (b) Smooth - Stomach (c) Cardiac - Heart
  3. (a) Skeletal - Biceps (b) Involuntary - Intestine (c) Smooth - Heart
  4. (a) Involuntary - Nose tip (b) Skeletal - Bone (c) Cardiac - Heart
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11

Match List I with List II related to digestive system of cockroach. Choose the correct answer from the options given below:

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