Question

the graph below shows three different survivorship curves.
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cycads are gymnosperms that were diverse and abundant during the mesozoic era. extant species of cycads share many traits with those from the mesozoic era. cycads bear cones, are long lived with slow growth rates, show late reproductive maturity, and have very few offspring. based on this description, the cycads are
a k - strategists with a type i survivorship curve.
b r - strategists with a type iii survivorship curve.
c k - strategists with a type iii survivorship curve.
d r - strategists with a type ii survivorship curve.

Explanation:

• K - strategists: These organisms have slow growth rates, late reproductive maturity, and few offspring, which matches the description of cycads (long - lived, slow growth, late maturity, few offspring).
• Type I survivorship curve: Organisms with this curve have high survival rates throughout most of their lives and die in large numbers at an old age. Since cycads are long - lived, they are likely to have a Type I curve.

Answer:

A. K - strategists with a Type I survivorship curve.