Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Temperature Stress
We know that temperature alongwith water is an important influence on the geographical distribution and range of organisms. Every organism is restricted to a definite range of temperature, which may be quite dissimilar for different species. In other words, there is an upper and lower lethal temperature above and below which a given organism cannot perform the normal life activities and may suffer irreversible damage or may die.
The lower minimum and upper maximum lethal temperatures and optimum temperature are termed as cardinal temperatures and these vary from species to species. Some organisms have narrow limits of tolerance to high or low temperature (stenothermal) while some tolerate a wide range of temperature (eurythermal) (Figure shown below). Besides tolerance temperature range, organisms have different optimum temperature for growth, development and reproduction i.e. at the specific temperature, they perform specific function with maximum efficiency. The characteristics of terrestrial biotic communities are determined by the temperature and rainfall. Thus we find that different biomes distributed throughout the globe in accordance with the temperature which in turn is influenced by other factors. Since the temperature varies with altitudes as well as with latitude the variation in the vegetation from equator to higher latitudes is somewhat similar to that from planes to higher altitude.
The biomes in different regions have been named according to the kind of vegetation they support such as coniferous forest, deciduous forest, grassland, savanna etc. The deserts and the tundras experience extremes of temperature. The organisms of such biomes survive at the limits of the temperature tolerance. We will now describe the temperature stress on the organisms living in these biomes.
name the blood vessel which bring waste product to kidney
If NAD+ is an electron acceptor that becomes NADH and the NADH then donates a proton to ATPase, shouldn't NADH now become NAD- since it lost it's proton but still has the electron?
These are areas where woody shrubs predominate rather then trees. In regions with a Mediterranean type of climate i .e., hot dry summers and cool wet winters, shrubs grow close tog
What are all possibilities of genotypes and phenotypes formed in the combination of alleles responsible for the production of factor VIII? Considering the alleles X and Xh, whe
Intergenic: Amongs the two genes; for example intergenic DNA is the DNA found amongs two genes. The term is frequently used to mean non-functional DNA (or at least DNA with no kno
Cell-mediated immunity: The immune reaction directed against the body cells which have been infected by viruses and bacteria; and are controlled by T cells.
Define Calcium - The Macronutrient? Calcium is an important mineral found mainly in bone and teeth. It is widely distributed in food substances such as milk, cheese, egg yolk,
Why do roots of many swamp plants have a special morphology? Swamp and marsh plants usually present supporting roots that ramify from portions of the stem above the ground help
Define symptoms in Stomach and Mouth of pernicious anaemia? Stomach: The cells which secrete acid and enzymes are atrophied. The gastric secretions are devoid of acid, pepsin
Explain solid salt and saturated aqueous solution? In this example, the equilibrium system consists of crystalline PbCl 2 and an aqueous phase containing the species H 2 O, P
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd