Living Organisims (Ch. 1-3)

Question 1

What is biology?

Answer 1

The study of living organisms

This includes both unicellular and multicellular organisms.

Question 2

How many characteristics do all living organisms share?

Answer 2

Seven characteristics

These characteristics are essential for defining life.

Question 3

What is the process by which living organisms obtain or make food?

Answer 3

Nutrition (feeding)

This process is fundamental for survival.

Question 4

What are heterotrophs?

Answer 4

Organisms that take in ready-made food

Examples include animals.

Question 5

What are autotrophs?

Answer 5

Organisms that make their own food

Examples include plants.

Question 6

What is respiration?

Answer 6

The process by which energy is released from food by all living cells

It is crucial for energy production.

Question 7

What type of respiration requires oxygen?

Answer 7

Aerobic respiration

This type occurs in most cells.

Question 8

What type of respiration takes place without oxygen?

Answer 8

Anaerobic respiration

This occurs in certain cells.