The correct answer is [A] (ii) and (iv).‘A’ represents the diaphragm. During inhalation, it flattens and helps the chest cavity to become larger, allowing air to enter the lungs. It doesn’t decrease residual volume.
Discussion Forum Latest Questions
The correct answer is (B) maintaining posture, balancing the body, coordinating voluntary movements.The cerebellum controls balance, posture, and smooth coordination of voluntary muscles, ensuring precise and coordinated body movements. CBSE Sample Paper Class 10 Science 2025-26 Tiwari Academy provides CBSE Class ...
Haemodialysis removes wastes and excess water from blood when kidneys fail. Blood passes through a dialysis machine with a semipermeable membrane. Limitations: temporary, cannot replace all kidney functions. Precautions: follow fluid restrictions and maintain hygiene to prevent infections. CBSE Sample Paper ...
A man can survive with one kidney because a single healthy kidney can perform the functions of both: filtering blood, removing waste, balancing water and salts, and producing hormones. The remaining kidney enlarges slightly to compensate. class 10 science sample paper ...
The correct answer is [C] A is true but R is false.The maximum concentration of chemicals and pesticides occurs at the highest trophic level, not the first. These chemicals are non-biodegradable, so they accumulate through the food chain, causing ...