9 public questions tagged with this topic.
Metamorphosis in frogs is primarily controlled by thyroid hormones, not general growth hormones. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function, Topic: Structural organization and physiology.
Male frogs have vocal sacs that amplify their mating calls.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Nervous System Sense Organs and Reproductive System
The frog’s brain is divided into three regions: forebrain, midbrain, and hindbrain, each with different functions.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Nervous System Sense Organs and Reproductive System
The tympanum in frogs functions as an external ear, detecting sound vibrations from the environment.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Nervous System Sense Organs and Reproductive System
The ventricle of the frog’s heart pumps mixed oxygenated and deoxygenated blood to the body.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Circulatory and Excretory System
Frogs have double circulation, meaning blood passes through the heart twice in one complete cycle.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Circulatory and Excretory System
Frogs have a pancreas that secretes digestive enzymes for breaking down food.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Digestive and Respiratory System
Frogs respire through their lungs on land, through their skin in water, and via buccal respiration.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Digestive and Respiratory System
During the tadpole stage, frogs use gills for respiration before developing lungs in adulthood.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Digestive and Respiratory System
