R-organisms reproduce at a very high rate. knowing this, why don’t they usually reach their carrying capacity? a. they live in environments with many predators that feed on them. b. they are regularly killed off by disease and/or drought. c. their life span is too short. d. a and b only

Answer is:  d. a and b only.

There are two types of selection theory:

1) r-organisms - increased quantity of offspring.

2) K-organisms- reduced quantity of offspring with increased parental investment.

r-organism live in unstable or unpredictable environments, with a lot predators and diseases. They have high fecundity, small body size and short generation time. Some r-organisms are insects and rodents.

it should be all of them because it asks if you included all of those in your answer

explanation: