Structural Organization in Animals
Test 2

Correct answer Carries: 4.

Wrong Answer Carries: -1.

What type of circulation is present in frogs?

Double circulation
Single circulation
Closed circulation
Open circulation
3

Frogs have a well-developed closed circulatory system with a three-chambered heart.

Which type of tissue is responsible for movement in frogs?

Epithelial tissue
Muscular tissue
Nervous tissue
Connective tissue
2

Muscular tissue is responsible for movement in frogs, as it helps in contraction and relaxation of muscles.

Which organ is absent in the frog’s digestive system?

Liver
Pancreas
Gall bladder
Appendix
4

Frogs lack an appendix, which is present in some mammals but not in amphibians.

Which organ in frogs stores bile before releasing it into the intestine?

Liver
Gall bladder
Pancreas
Spleen
2

The gall bladder stores bile secreted by the liver and releases it into the duodenum for digestion.

Which of the following statements about the frog’s nervous system is correct?

Frogs have 12 pairs of cranial nerves.
The cerebrum in frogs is responsible for reflex actions.
Frog brains have forebrain, midbrain, and hindbrain divisions.
The optic lobes in frogs are responsible for balance and coordination.
3

The frog’s brain is divided into three regions: forebrain, midbrain, and hindbrain, each with different functions.

Which of the following statements about the frog’s reproductive system is incorrect?

Frogs undergo external fertilization.
Frogs lay fertilized eggs on land.
Male frogs use vocal sacs to attract females.
The female frog lays eggs in water.
2

Frogs lay eggs in water, where external fertilization occurs.

Which part of the frog’s brain is responsible for balance and coordination?

Cerebrum
Cerebellum
Medulla oblongata
Diencephalon
2

The cerebellum in a frog’s brain is responsible for maintaining balance and coordinating movements.

Which part of the frog’s brain is responsible for olfaction?

Cerebrum
Cerebellum
Olfactory lobes
Medulla oblongata
3

The olfactory lobes in a frog’s brain are responsible for the sense of smell.

What type of circulatory system is present in frogs?

Open circulatory system
Closed circulatory system
Lymphatic circulatory system
Single circulation system
2

Frogs have a closed circulatory system where blood flows through a network of blood vessels.

Which of the following statements about the frog's RBCs is correct?

They are non-nucleated
They lack hemoglobin
They are biconcave
They are nucleated
4

Unlike mammalian RBCs, frog RBCs are nucleated and contain hemoglobin for oxygen transport.

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