Type II survivorship curve refers to a pattern where the probability of survival remains relatively constant throughout an organism's lifespan.
Think of this as being similar to playing a game with limited lives. Each player has an equal chance of surviving each level without any significant advantage or disadvantage.
Type I survivorship curve: Type I survivorship curve describes a pattern where most individuals survive until old age, with high mortality rates occurring later in life.
Type III survivorship curve: Type III survivorship curve represents a pattern where there is high mortality early in life, but those who survive have a higher chance of living longer.
Mortality rate: Mortality rate refers to the number of deaths within a specific population during a given time period, usually expressed per thousand or per hundred thousand individuals.
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