In: Biology
Which of the following is thought to be a reason why some populations of organisms fluctuate over time? Select all that apply.
A |
changes in weather |
B |
the size of the organism and how long it lives |
C |
predator-prey interactions |
D |
variability in the food supply |
E |
whether the organism is r-selected or K-selected |
(A) is correct statement because Populations can fluctuate because of seasonal or other regular environmental cycles (e.g., daily, lunar cycles).
(C) and (D) are correct statement because Predation limits population through an ecological interaction in which a predator of one species catches, kills and consumes prey of another species.
(B) is wrong statement because it has written size of organism and how long it lives
(E) is correct statement because The r selected species live in populations that are highly variable. The fittest individuals in these environments have many offspring and reproduce early. In K selected species, population size are often small, and therefore, individuals run a high risk of inbreeding.