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Bob is an ocean explorer who has traveled into the abyssal zone and has observed tube worms living around hydrothermal vents. What would be the ultimate source of nutritional energy in the food chain for these worms? A. Sulfur B. Heat C. Detritus D. Fish ...
What is the ultimate source of most energy in the biosphere? Where is most digested food absorbed? What are some different sources of energy that humans use? What provides energy for a cell? What do carbohydrates have to do with adenosine triphosphate?
The term "nature" may refer to living plants and animals, geological processes, weather, and physics, such as matter and energy. The term is often refers to the "natural environment" or wilderness—wild animals, rocks, forest, beaches, and in general areas that have not been substantially al...
Costa Rica’s Zona Sur (southern zone) is the country’s least-known region, both for Ticos and for visitors, though tourism has increased significantly in recent years. The geographically diverse Zona Sur encompasses the high mountain peaks of the Cordillera de Talamanca at its northern edge,...
The prospective models for industrial ecology can answer questions that were previously in the exclusive domain of integrated assessment models (IAMs). A debate about the relation between the two model families is necessary. We find that IAMs have a more comprehensive scope than the prospective IE ...
How does pollution affect the biosphere? What is the primary human cause of global warming? What are the effects of soil pollution in urban areas? What are some characteristics of point source pollution? What are some natural causes of ocean acidification? What causes water pollution in Liberia?
Manned missions to the outer solar system at this point in time would be putting the cart before the horse. Our first step, in my view, is to get to a breakthrough on nuclear fusion — since that hasn’t just implications for space travel, but also for Earth-based problems (mos...
To structure the study of ecology into a manageable framework of understanding, the biological world is conceptually organized as a nested hierarchy of organization, ranging in scale from genes, to cells, to tissues, to organs, to organisms, to species and up to the level of the biosphere.[23...
The idea of ‘nature’ is at the very core of science, considered as its flagship and deepest link with human societies. However, while nature preservation has become a major social concern, the idea of nature remains elusive. We examine here the origins