Which of the following is generally true of k-strategist species as compared to r-strategist species?
a. they reach sexual maturity earlier.
b. they have more young.
c. they are more likely to be invasive species.
d. they have longer life spans.
e. their population cycles are more rapid.

D. They have longer life spans.

Explanation:

The species described as K-strategist have organisms with large body sizes. They exhibit slow development and have a long life span. These species attain reproductive maturity once the growth phase is complete. These species do not spend a large proportion of their metabolic energy on the production of offspring and do not produce a large number of offspring.  They are found in the regions of relatively stable environments. Example: Redwood trees.