Characteristics of Life

The video explores the characteristics of life, using the example of toys that grow in water to illustrate the difference between biological growth and non-living growth. It discusses key characteristics of living organisms, such as organization, homeostasis, metabolism, reproduction, growth, development, response to stimuli, and evolution. The video also highlights the complexity of defining life, noting that some entities like viruses challenge traditional definitions. The aim is to encourage viewers to think critically about what it means to be alive.

What is the main difference between the growth of a toy in water and a living organism?

• Living organisms grow due to water absorption.

• Living organisms do not change in size.

• Toys increase in size but do not develop.

• Toys grow based on genetic instructions.

Why is it challenging to define life?

• Because new discoveries constantly change our understanding.

• Because all living things are identical.

• Because life is easy to categorize.

• Because the characteristics of life are fixed.

According to cell theory, what are living organisms made of?

• Molecules

• Cells

• Atoms

• Tissues

Which process is essential for maintaining a stable internal environment in living organisms?

• Evolution

• Metabolism

• Homeostasis

• Reproduction

What is the role of metabolism in living organisms?

• To maintain a stable temperature

• To capture and use energy

• To respond to stimuli

• To reproduce offspring

How do living organisms typically respond to stimuli?

• By reacting internally or externally

• By stopping all biological processes

• By ignoring them

• By changing their genetic material

What characteristic of life involves changes in gene frequencies over time?

• Metabolism

• Evolution

• Homeostasis

• Reproduction