The four characteristic events of a typical **sigmoid growth curve** are:
ALag phase, log (exponential) phase, decelerating phase, stationary phase
BBirth, growth, fruiting, death
CPhotosynthesis, respiration, dormancy, germination
DMitosis, meiosis, S phase, G phase
Answer & Solution
Correct answer: A. Lag phase, log (exponential) phase, decelerating phase, stationary phase
Sigmoid (S-shaped) growth curve: slow initial growth (lag), rapid exponential growth (log), slowing (deceleration), and finally levelling off (stationary/plateau — when growth = death or resources limit). Applies to populations, organs, whole organisms.
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