How does diversity ensure ecosystem stability?
Why is variety important?
Why should humans respect biodiversity?
What happens if it declines?
How do adaptations help organisms survive?
Why don’t all organisms look the same?
Why is classification easier today?
How does technology help?
How does diversity reflect evolution?
What does it tell us?
Why is this chapter foundational for higher biology?
How does it help in Class 11 & 12?
What does the term “health” actually mean?
Is health just about not being sick?
Why is health considered a dynamic condition?
Can a healthy person fall ill suddenly?
What are the factors affecting health?
Why do two people react differently to the same disease?
Why is mental health as important as physical health?
Can stress cause physical illness?
What is a disease?
How is it different from discomfort?
What are symptoms of a disease?
Why do doctors ask about symptoms first?
What are signs of a disease?
How are signs different from symptoms?
Why does fever occur during infection?
Is fever harmful?
What are acute diseases?
Why do they last for a short time?
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