Consider the given statements:
I:  The heart of a frog has three chambers, two atria and one ventricle.
II:  The blood from the heart is carried to all parts of the body by the veins (venous system).
III:  The lymphatic system in frogs consists of lymph, lymph channels, and lymph nodes.

1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct

Subtopic:  Frogs: Anatomy (Circulatory System) |
 54%
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Consider the given statements:
I:  The control and coordination system in frogs includes both neural system and endocrine glands.
II:  The prominent endocrine glands in frogs include pituitary, thyroid, thymus, pineal body, pancreatic islets, adrenals and gonads.
III:  The brain is divided into fore-brain, mid-brain, and hind-brain.
 
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic:  Frogs: Anatomy (Nervous System) |
 83%
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What is the name of the double fold of peritoneum in frogs that adheres the testes to the upper part of the kidneys?
1. Mesovarium
2. Mesentery
3. Mesorchium
4. Mesonephros
Subtopic:  Frogs: Anatomy (Excretory System) |
 85%
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In the female reproductive system of frogs, what is the maximum number of ova a mature female can lay at one time?
1. 1000-1500
2. 1500-2000
3. 2000-2500
4. 2500-3000
Subtopic:  Frogs: Anatomy (Female Reproductive System) |
 75%
From NCERT
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Consider the given statements:
I:  The male reproductive system of cockroaches includes a pair of testes located on each lateral side in the 4th-6th abdominal segments.
II:  The external genitalia in male cockroaches are represented by chitinous asymmetrical structures called phallomeres, which surround the male gonopore.

1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Neither I nor II are correct
Subtopic:  Cockroach:Male Reproductive System |
 79%
From NCERT
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Consider the given statements:
I:  The head of a cockroach is triangular in shape and formed by the fusion of six segments.
II:  The head bears a pair of compound eyes and a pair of thread-like antennae that arise from membranous sockets in front of the eyes.
III:  The head of a cockroach shows limited mobility due to its rigid neck.

1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic:  Cockroach: Head & Mouth Parts |
 70%
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Which of the following respiratory methods is used by frogs when they are in water?
1. Pulmonary respiration
2. Tracheal respiration
3. Branchial respiration
4. Cutaneous respiration
Subtopic:  Frogs: Anatomy (Respiratory System) |
 83%
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Consider the given statements:
I:  The alimentary canal of frogs is short because they are carnivores and hence the length of the intestine is reduced. 
II:  The liver secretes bile which is stored in the pancreas.
III:  Food is captured by the bilobed tongue in frogs.

1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic:  Frogs: Anatomy (Digestive System) |
 69%
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In male frogs, the ureters act as urinogenital ducts. Where do these ducts open into?
1. Gall bladder
2. Cloaca
3. Small intestine
4. Exterior
Subtopic:  Frogs: Anatomy (Excretory System) |
 93%
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Which of the following sequences correctly represents the path of food through the alimentary canal starting from the mouth in Rana tigrina?
1. Mouth → Pharynx → Oesophagus → Stomach → Intestine → Rectum → Cloaca
2. Mouth → Oesophagus → Pharynx → Stomach → Intestine → Cloaca → Rectum
3. Mouth → Pharynx → Oesophagus → Intestine → Stomach → Rectum → Cloaca
4. Mouth → Stomach → Oesophagus → Pharynx → Intestine → Rectum → Cloaca
Subtopic:  Frogs: Anatomy (Digestive System) |
 84%
From NCERT
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