Which would least likely be a cause of natural selection? adaptation, evolution, overpopulation, variation

This is a new idea, more effective device or process. this an be viewed as the application of better solutions that meet new requirements, inarticulated needs, or existing market needs. what's the term?

Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems