Question

how is organ system different from organ,name any2organ system in our bodyand name their organ. grade 3​

Answer 1

Answer:

In biology, an organ is a collection of tissues that structurally form a functional unit specialized to perform a particular function. Your heart, kidneys, and lungs are examples of organs.

A collection of organs is called an organ system .

The respiratory system and the nervous system are examples of organ system .

The respiratory system includes the nose, mouth, throat, voice box, windpipe, and lungs. 

The nervous system is made up of the brain ,nerves and spinal cord.

Answer 2

Organ system is composed of two or more organs that work together to perform functions.

Explanation:

• Organ is a structure made of two or more tissue together that work together for common purpose.

• There are many organs in our human body.
• The organs inside our body are called internal organs .examples: heart ,brain,pancreas,liver,etc.
• organs outside our body are called external organs. examples:eyes,nose,skin,etc.

• Group of organs working together to perform specific function is called an Organ system.

• There are several organ system in our body that works and help us to stay alive and do various things

• some of the organ systems are skeletal system,muscular system,circulatory system,respiratory system ,digestive system,excretory system,nervous system , reproductive system.