Why is biodiversity considered important for the functioning of an ecosystem? Summarize advantages of seeds over spores. What is the importance of algae? How is DAPG able to suppress the growth of the fungus that causes "take all"? Explain the importance of nitrogen in growing plant...
Explain how fission can be used to generate electricity. Another grand challenge for engineering is managing the nitrogen cycle. Use the nature of the chemical bond in diatomic nitrogen to explain why any management is needed for this biogeochemical cycle. How can you tell if a chemical process...
The only place it can go is out of the back of the machine. You may have noticed that the grid of fins on the back of a refrigerator gets pretty hot—and that's why: they're giving off all the heat that would normally be inside. You can find out more in our article on how ...
While the present day surface of Venus is uninhabitable, the lower-cloud layer lies in the region of the atmosphere where pressure-temperature conditions are suitable for life (47–57 km altitude). This has led to suggestions of microbial life being a possible explanation for the existence of...
Pneumatics is the science and technology of pressurized air—using piped, compressed air (or a similar gas, such as nitrogen) to transmit force and energy.So a pneumatic drill (or jackhammer) can blast the pavement apart with a metal chisel pumped up and down by compressed air feeding in ...
Discharge of treated sewage leads to release of antibiotic resistant bacteria, resistance genes and antibiotic residues to the environment. However, it is unclear whether increased abundance of antibiotic resistance genes in sewage and sewage-impacted en
In particular there is a growing body of literature investigating how individuals' SWB relates to the quality of their environments (EQ). Due to the non-market nature of many elements of EQ, standard measures may provide limited insight (Frey and Stutzer, 2002), and can even paradoxically be...
摘要: Plant functional traits regulate ecosystem functions but little is known about how co-occurring gradients of land use and edaphic conditions influence their expression. We test how... 查看全部>>关键词: anthropogenic disturbance Borneo functional diversity functional traits land use Rao's Q ...
Mean trait values for all 17 measured traits, plus RGR, were calculated for each species in each nitrogen treatment. To assess the effects of nitrogen availability and invasiveness on plant traits, I performed a mixed-model, nested ANOVA with ''nitrogen level'' and ''i...
What is the ecological impact of reforestation in Iceland? What are the factors that influence the productivity of tropical forests? Briefly explain the following: Effects of increasing nitrogen and carbon dioxide on the environment. What is the Greenhouse Effect, and how...