Structural Organization in Animals
Test 1

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following structures in frogs acts as an aquatic respiratory organ?

Lungs
Skin
Buccal cavity
Kidney
2

Frogs respire through their skin in water, a process known as cutaneous respiration.

Which part of the frog's nervous system connects the brain to the spinal cord?

Cerebrum
Cerebellum
Medulla oblongata
Olfactory lobes
3

The medulla oblongata extends from the brain and continues into the spinal cord, controlling involuntary functions.

Which type of skeleton does a frog possess?

Exoskeleton
Hydrostatic skeleton
Endoskeleton
Cartilaginous skeleton
3

Frogs have an endoskeleton made of bones that provide structural support and aid in movement.

Which excretory product is removed by frogs to maintain water balance in their body?

Ammonia
Urea
Uric acid
Creatinine
2

Frogs are ureotelic animals that excrete urea as their primary nitrogenous waste to maintain water balance.

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

Frogs have a well-developed alimentary canal.
Digestion in frogs begins in the stomach.
The intestine of a frog is longer because it is a herbivore.
The liver secretes bile that helps in digestion.
3

The intestine in frogs is relatively short because they are carnivorous, unlike herbivores that require longer intestines for plant digestion.

Which of the following statements about frog sense organs is correct?

Frogs have external ears for detecting sound.
The tympanum in frogs functions as an external ear.
Frogs lack eyes and rely only on other senses.
Frogs have taste buds located only on their tongue.
2

The tympanum in frogs functions as an external ear, detecting sound vibrations from the environment.

Where does the digestion of food in a frog begin?

Stomach
Mouth
Duodenum
Cloaca
2

Digestion in frogs begins in the mouth, where enzymes start breaking down food.

What is the function of the pancreas in frogs?

Secretes bile
Produces pancreatic juice
Regulates heartbeat
Stores glucose
2

The pancreas produces pancreatic juice, which contains digestive enzymes for breaking down food.

Which structure in a frog helps to capture prey?

Forelimbs
Nictitating membrane
Tongue
Teeth
3

Frogs use their long, sticky tongue to capture prey quickly.

Which type of blood circulation is present in frogs?

Single circulation
Double circulation
Open circulation
Lymphatic circulation only
2

Frogs have double circulation, meaning blood passes through the heart twice in one complete cycle.

Performance Summary

Score:

Category Details
Total Attempts:
Total Skipped:
Total Wrong Answers:
Total Correct Answers:
Time Taken:
Average Time Taken per Question:
Accuracy:
0