Which statement describes an advantage of renewable resources? a. they are cheaper than traditional energy sources b. they are a source of clean energy c. they are located everywhere around the world d. they are an affordable means of energy production

Explain the significance of thesaurus geographicus

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.

How can an organ, such as the lungs, work for multiple body systems?