Question

questions 1 through 3 refer to the following.
the graph below shows three different survivorship curves.
percentage of organisms surviving
1
cyads 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 are characterized by traits such as late reproductive maturity, few offspring, and long - lived individuals.
• Type I survivorship curve shows high survival rates throughout most of the life span, with a rapid decline in old age. This is consistent with the description of cycads (long - lived, few offspring, late maturity).
• r - strategists typically have many offspring, early reproductive maturity, and are more likely to have Type III (high juvenile mortality) or Type II (constant mortality rate) survivorship curves.

Answer:

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