C) Crops may cause an increase of allergic reactions in humans.
adaptations.
Natural selection leads to traits called adaptations, which improve an organisms ability to survive and reproduce.
Salutations!
Organisms that derive their energy from the sun and carbon from carbon dioxide area photoautotrophs. These organisms carry out photosynthesis. Examples of photoautotrophic organisms are: algae, green plants etc.
Hope I helped (:
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