Which property of water is most directly responsible for the ability of sweat to lower body temperature?
Many mammals a) waters change in density as it condenses b) waters ability to dissolve molecules in the air c) the release of the heat by the form of hydrogen bonds d) the absorption of heat by the breaking of hydrogen bonds
Which property of water is responsible for the ability of sweat to lower body temperature?
which property of water is responsible for the ability of sweat to lower body temperature? a) water's change in density as it condenses b) water's ability to dissolve molecules in aire c) the release of heat by the formation of hydrogen bonds d) the absorption of heat by the breaking of hydrogen bonds
Difference between STOMATA and SWEAT PORES???
It's important to note that any similarities between these two structures and between their functions are purely superficial -- that is, they are not homologous entities. You'll learn more if you read up on them yourself, rather than being provided a list here. With that in mind, start your research by visiting: http://health.howstuffworks.com/sweat.ht... and http://www.tvdsb.on.ca/westmin/science/s...
What is the difference between sea water fish and fresh water fish?
Apart from a few species in the wild many fishes are either salt water fishes or fresh water fishes.The difference between the two species is a physiological adaptation - osmoregulation and behaviour.Fishes that live in freshwater tend to have less saline body fluids than their surroundings. There is pressure for water to move from the less saline side to the more saline side. Freshwater fish tend to gain significant amounts of water through their gills and the skin over their bodies. Scales help to retard this movement. So what does a fish do?Freshwater fishes drink little water and produce copious amounts of urine. The goldfish in your aquarium may be producing a third or its body weight as urine every day . There is a problem with producing so much urine. Necessary as well as waste products are lost. By ingesting food and absorbing necessary salts in places such as the gills, fish actively take in enough to replace what's lost in urine.Body tissues in a saltwater fish contain less salt than the water in which it lives. Because the saltier environment in the outside water draws water from body tissues, a saltwater fish constantly loses water through its skin and gills. To compensate and prevent dehydration, a saltwater fish drinks large quantities of saltwater, produces very little urine and secretes salt from this water through its gills.Ever wonder why a salmon can survive in open springs and the ocean?? - it's how they behave!! http://www.unm.edu/~toolson/salm...
Question About Sweating?
I think you are confused. Your body needs to cool down by releasing heat, that is correct. However, the heat energy you are trying to rid of does not just disappear into the air. This is the reason for sweat, it cools you down by absorbing the heat from your body! Your body would be much hotter if it were to release heat onto you, wouldn't it? How sweat helps to cool you down would be to evaporate. During this evaporation, energy is needed to overcome the hydrogen bonds to help it change state, from liquid to gas. Energy can be calculated by the latent heat of vaporization. Therefore, as it evaporates, it takes along heat from your skin along with it as it turns into gaseous state. Hope I've helped to clarify your doubts!