Growth in organisms follows specific patterns, influenced by both internal and external factors. In animals, growth is often determinate, meaning it stops at a certain stage (e.g., humans stop growing after adulthood). In contrast, plants exhibit indeterminate growth, continuously growing throughout their lifespan. Scientists use growth curves to analyze growth patterns, with the sigmoid (S-shaped) curve being the most common. This curve consists of lag, exponential, decelerating, and stationary phases, reflecting different growth rates. Other growth patterns include continuous, intermittent, and seasonal growth, depending on species and environmental conditions.