Question:
Which of the following animals developed the ability of using ribs and intercostal muscles in ventilation for the first time in vertebrate evolution?
Which of the following animals developed the ability of using ribs and intercostal muscles in ventilation for the first time in vertebrate evolution?
Show Hint
Reptiles introduced thoracic breathing using ribs and intercostal muscles.
Updated On: Jun 19, 2026
- Mammals
- Aves
- Reptiles
- Fishes
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understand respiratory evolution.
Vertebrate respiration evolved from simple diffusion and gill-based systems to advanced lung ventilation.
Step 2: Identify rib-based ventilation.
Ribs and intercostal muscles enable thoracic breathing using negative pressure.
Step 3: Evolutionary appearance.
This rib-based ventilation first appears in reptiles.
Step 4: Compare with other groups.
Fishes use gills, amphibians use buccal pumping, birds use air sacs, mammals use advanced diaphragm-based breathing.
Step 5: Functional advantage.
Reptiles evolved efficient lung ventilation compared to amphibians.
Step 6: Conclusion.
Thus, reptiles first developed rib and intercostal muscle-based ventilation.
Vertebrate respiration evolved from simple diffusion and gill-based systems to advanced lung ventilation.
Step 2: Identify rib-based ventilation.
Ribs and intercostal muscles enable thoracic breathing using negative pressure.
Step 3: Evolutionary appearance.
This rib-based ventilation first appears in reptiles.
Step 4: Compare with other groups.
Fishes use gills, amphibians use buccal pumping, birds use air sacs, mammals use advanced diaphragm-based breathing.
Step 5: Functional advantage.
Reptiles evolved efficient lung ventilation compared to amphibians.
Step 6: Conclusion.
Thus, reptiles first developed rib and intercostal muscle-based ventilation.
Was this answer helpful?
0
0
Top AP EAPCET Biology Questions
- In which group of algae are food materials stored in pyrenoids?
- Which plant hormone is responsible for apical dominance?
- The genetic material in bacteriophages is:
- Which of the following is the structural and functional unit of the kidney?
- Which of the following organisms exhibits alternation of generations?
View More Questions
Top AP EAPCET Classification of animals Questions
- Identify the wrong statement regarding ICBN:
- The branch of botany which helps in understanding the course of evolution in plants is:
- Following is not a common feature in both ferns and Gymnosperms:
- Some plants of the following family have swollen leaf base:
- Choose the incorrect statement:
View More Questions
Top AP EAPCET Questions
- A body is projected from the ground at an angle of $\tan^{-1} \left( \frac{8}{7}\right)$ with the horizontal. The ratio of the maximum height attained by it to its range is
- The four quantum numbers of the valence electron of potassium are :
- A lens forms real and virtual images of an object, when the object is at $u_{1}$ and $u_{2}$ distances respectively. If the size of the virtual image is double that of the real image, then the focal length of the lens is (take, the magnification of the real image as $m$ )
- Two spheres $P$ and $Q$, each of mass $200\, g$ are attached to a string of length one metre as shown in the figure. The string and the spheres are then whirled in a horizontal circle about $O$ at a constant angular speed. The ratio of the tension in the string between $P$ and $Q$ to that of between $P$ and $O$ is $(P$ is at mid-point of the line joining $O$ and $Q$ )
- The volume of $0.02\, M$ acidified permanganate solution required for complete reaction of $60\, mL$ of $0.01\, MI^{-}$ ion solution to form $I_2$ in $mL$ is
View More Questions