What is a life cycle?

• A. The study of different species
• B. The series of stages in the life of an organism from birth to reproduction to death
• C. The process of evolution
• D. The interaction between organisms and their environment

Answer: (B)

A life cycle refers to the series of stages that an organism goes through during its life, starting from its birth (or germination in the case of plants) and progressing through growth, development, reproduction, and eventually to death. This concept is crucial in biology as it outlines how living things grow and change over time, ensuring the continuation of species through reproduction.

Understanding the life cycle helps us see the different phases an organism experiences, such as the larval stage in insects, the metamorphosis in frogs, or seed germination in plants. Each stage has particular characteristics and functions that are vital for the survival and adaptation of the species.

While the other options provide valuable concepts in biology, they do not accurately define what a life cycle specifically entails. The study of different species, the process of evolution, and interactions between organisms and their environments are more about broader scientific frameworks and relationships, rather than the specific sequential stages that comprise an organism’s life cycle.