Evolution is affected by many factors. Which of the following does NOT contribute significantly to the evolution of organisms?A- A natural disaster that eliminates a small number of organisms B- Genetic variation resulting from sexual reproduction C-Competition for resources within and between species and D- Predators capturing and killing only certain individuals

A) A natural disaster that eliminates a small number of organisms

A

Explanation:

Each of the answers B, C, and D contain an aspect that will cause evolution to occur:

B. "Genetic variation"; this is basically the core essence of evolution. If there's genetic variation and it helps the organism survive better, then that species will gradually evolve to include that trait for better fitness.

C. "Competition"; with competition, it's like survival of the fittest: who can get the most prey and survive the longest. Without competition, organisms will simply get the food they want and will not be able to really evolve because none die.

D. "Predators capturing certain individuals"; this is kind of similar to C in that if an organism is caught by predators, it will lose its fitness and be less likely to survive. In order to avoid that, those organisms will want to evolve.

Only A doesn't cause evolution because it's a chance event that cannot be avoided.

Hope this helps!

stratosphere: as the altitude increases, the air temperature increases. the stratosphere has a layer of ozone, called the ozone layer. this layer absorbs most of the ultraviolet radiation from sunlight. this results in the stratosphere being warmer.