Question

Scientists determined that a species of a reptile dinosaur cohort had 20% survivorship during the first two years of life, but then the survivorship of those individuals that survived to age 2 had a 70% survivorship to middle age. Survivorship declined later in life. Which of the following best illustrates the shape of the survivorship curve for this species?

Answer 1

Answer: C

Step-by-step explanation:

A graph for this species would have a curve that drops off before age 2, is concave until middle age, and then drops again, paralleling that of a Type I survivorship curve.

Answer 2

C. downward curve

Step-by-step explanation:

In this case, graph C explains the shape of the survivorship curve for this species.