Question

Which of the following statements is true?

• A. The structural unit of living things is molecule.
• B. All animals are autotrophs
• C. All organisms reproduce sexually.
• D. Organisms follow a life cycle of birth, growth, reproduction, ageing and death.

Answer 1

The correct option is D

Organisms follow a life cycle of birth, growth, reproduction, ageing and death.

The correct option is D.

Explanation of the correct option:

1. All living organisms are made up of cells.
2. The cells contain organic and inorganic components and are responsible for all life processes such as nutrition (autotrophic or heterotrophic), reproduction (sexual or asexual), and excretion.
3. Each cell is formed from pre-existing cells, divides and multiplies in number, and has a finite lifespan, resulting in aging and death.

Final answer: Organisms follow a life cycle of birth, growth, reproduction, ageing and death.