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Multiple Choice
Which type of survivorship curve is characterized by high survival rates during early and middle life, followed by a rapid decline in survival in later years?
A
Type I
B
Type III
C
Type II
Verified step by step guidance
1
Understand the concept of survivorship curves: Survivorship curves are graphical representations of the number of individuals surviving at each age for a given species. There are three main types: Type I, Type II, and Type III.
Learn the characteristics of Type I survivorship curves: Type I curves are characterized by high survival rates during early and middle life, with most individuals living to old age. However, there is a rapid decline in survival in later years due to aging and associated factors.
Compare Type I with Type II and Type III: Type II curves show a constant rate of survival throughout life, meaning the probability of dying is the same at any age. Type III curves show low survival rates early in life, with few individuals surviving to adulthood, but those that do survive tend to live long lives.
Identify the correct answer based on the description: The problem specifies high survival rates during early and middle life, followed by a rapid decline in later years. This matches the characteristics of a Type I survivorship curve.
Conclude that the correct answer is Type I: Based on the explanation and comparison, Type I survivorship curves best fit the description provided in the problem.