Intro to living world

What is the basic unit of life?

Cells are the basic unit of life.

What are specialized cells? Give examples.

Specialized cells are cells that perform specific functions; examples include epithelial cells, muscle cells, and glandular cells.

What is a tissue?

A group of similar cells that work together to carry out a particular function.

What are some examples of tissues?

Epithelial tissue, muscle tissue, and glandular tissue.

What is the definition of an organ?

An organ is a group of different tissues that work together to perform a particular function.

Can you name some organs in the human body?

Examples of organs include the stomach, pancreas, liver, skin, teeth, lungs, spleen, bones, and testes.

What is an organ system?

An organ system is a group of organs that work together to perform a particular function.

Name a few organ systems in the human body.

Examples of organ systems include the digestive system, cardiovascular system, and reproductive system.

How many different organ systems are there in the human body?

There are about 12 different organ systems.

List some examples of organ systems in the human body.

Examples include the immune system, nervous system, respiratory system, endocrine system, and urinary system.