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Q. Which respiratory adaptations or organs do aquatic and terrestrial arthropods respectively present?
In crustaceans, typical aquatic beings, there are richly vascularized gills that permit gas exchange and make contact with water. In terrestrial insects the respiration is gases and tracheal flow inside small tubes that connect the animal external surface and ramify to cells and tissues without the participation of blood. In arachnids, besides the tracheal respiration, book lungs (thin folds resembling leaves in a book) may as well exist.
Illustrate Nernst equilibrium potential for potassium ions A complete motor neuron is removed from a frog and placed in normal physiological saline at 1 AM. The neuron is hea
Carbon Based Materials These include Pyrolytic carbon, polycrystalline (Vitreous Carbon), and carbon/silicon interstitial combination. Vitreous Carbon -Solid or porous vitre
Explain what is tooth formula? Ans) Formulae of tooth is (2, 1, 3, 2)
What is reproduction?
Q. What is the constitution of the cartilaginous matrix? The cartilaginous matrix is made of generally collagen type II, collagen fibers, and of proteoglycans, proteins associa
What evidence did Charles Elton collect that suggested that fluctuations in hare and lynx populations were related? What other evidence shows that these fluctuations ma
what are the organs of respiration in the lower form of animals?
Where does most of the water resorbed after glomerular filtration go? What are the other substances resorbed by the nephron tubules? Only 0.5 to 1% of the glomerular filtrate i
Suppose many of the atoms of nitrogen in a double-stranded molecule of DNA, of isotope N-14, were replaced with the isotope N-15. What afffect would this have? a) The nitrogeneo
Q Where in the cell can ribosomes be found? What is the major biological function of ribosomes? Ribosomes can be found free in the cytoplasm, adhered to the external side of th
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