Olympiad Test Level 1: Human Body - Class 3 MCQ

The organ that helps us in the sense of feeling is the Skin. So, the correct answer is B: Skin.

The system that forms the framework for our body is the Skeletal System. So, the correct answer is B: Skeletal System. The skeletal system includes all of the bones, cartilages, and ligaments in the body that provide support and give shape to the body.

The digestive system removes solid wastes such as faeces from the body through the large intestine.

The Rectum is not part of the urinary system. So, the correct answer is D: Rectum. The rectum is part of the digestive system, it stores feces before they are expelled from the body. 

The system that receives messages from the sense organs and sends orders to different parts of the body is the Nervous System. So, the correct answer is C: Nervous System. 

The food from mouth to stomach comes from a food pipe also known as Oesophagus.

The respiratory system is responsible for taking in oxygen and removing carbon dioxide. This process is known as respiration.

Respiratory system has Nose, Trachea and Lungs.

The Nervous System controls all our activities of seeing, hearing, learning, thinking, and feeling. So, the correct answer is B: Nervous System. The nervous system is a complex network of nerves and cells that transmit signals between different parts of the body.