Fish ___ oxygen through their gills(鳃). III.单项填空: () 1. Air pollution can affect humans by___ sore eyes and respiratory problems, especially in children and___. A. cause, the old B. causing, the older C. causing, the elderly D. cause, the elderly ()...
How does temperature affect hydrogen bonds? Why is hydrogen important in our bodies? Why is H bonding so important to water's properties? How do hydrogen bonds affect the surface tension of water? Why are weak bonds important to living organisms?
So, for goldfish kept in a tank with a temperature of 75 degrees, for example, you’ll have to provide 5-10 times more food than those kept in an outdoor pond where the temperature might be as low as, say, 58 degrees. In fact, they can actually get much colder. In this example ...
Explain the effect that temperature has on cellular respiration. What is the role of oxygen in cellular respiration? Why does cellular respiration stop if a person cannot breathe? How does exercise affect the rate of cellular respiration?
It is harder to pinpoint the problems, especially if the issue does not lie in improper water parameters such as pH, ammonia, or temperature. Therefore, it is important to focus more on preventive measures so as to ensure your fish never have to suffer after water changes. You do this by...
Living organisms not only adapt to their environment, but also affect it, change the environment within which other organisms may then develop. Likewise, each new mineral also enriches the chemical environment from which lots of other even more complex new minerals may be formed in the future. ...
The role of the EGR valve is to recirculate exhaust generated during the engine’s combustion back into the combustion cycle to be burned, thereby reducing the engine’s temperature and lowering the production of poisonous nitrous oxide.
All hail the tardigrade: the only animal that can survive in space. We talked to leading researchers to find out what makes these little water bears so amazing.
Why does the enzyme function depend on temperature and pH homeostasis? Explain why increased water reabsorption affects ion and urea movement. How do proteins affect cellular activity? Why do cells need exposure to T_3 for their normal rate of metabolism?
Why does water have a much higher boiling point than methane (CH_4)? What are factors affecting the balance of the ozone layer? Why was acidification of the alkaline phase necessary? Briefly explain at the molecular level why a higher temperature might increase...