<span>well i take this test before and the correct answer is :A They produce food by photosynthesis</span>
The origin of life<span> on Earth is a set of paradoxes. In order for </span>life<span> to have gotten started, there must have been a genetic molecule something like DNA or RNA capable of passing along blueprints for making proteins, the work horse molecules of </span>life<span>.</span>
Answer: .D. Smaller because its smaller surface area to volume ratio would allow it to breathe sufficiently through its skin alone.
Explanation:
The first diagram is the alpha helix, which is a spiral shape.
The second diagram is the beta pleated sheet which is the folded paper shape