What are characteristics of natural selection ? select three options .

It affects populations. It occurs when there is genetic variation. It selects organisms with certain traits to survive.

Explanation: Natural selection is when the individuals with the best survival characteristics survive instead of the weaker individuals. This requires genetic variation. Also, when these stronger individuals breed, they pass on those stronger genetics, making their offspring stronger. This makes the future generation stronger in general.

science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.

c is the answer to this question. altitude affects the weather because air molecules evaporate.