Marine fish can keep their internal environment hypertonic with respect to the surrounding salty water by retaining.?

Biology Mcqs
BILAL KHATTAK0

A. Excessive urea which will increase their internal solute concentration and prevent body shrinkage in hypertonic environment
B. Trimethyl alanine
C. Ammonia 
D. Trimethylamine oxide

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  2. Aquatic animals excrete nitrogenous waste commonly in the form of_____________??
  3. Which of the following is most toxic??
  4. The main nitrogenous waste formed in the body of earthworm is/are___________??
  5. In control cooling water system, chromates, phosphates and silicates are added to water
  6. In comparing internal selection with external selection, an advantage of internal selection is that____________??
  7. As plants grow to maturity, the concentration of plant nutrients changes. What kind of change occurs in respect of N, P, K, Ca and Mg?
  8. Which of the following statement about Homeostasis is incorrect??
  9. If enzyme concentration is low than substrate pH and temperature values are equal to requirement then which of the following will increase rate of reaction____________________??
  10. Specific heat of acqueous solutions in general

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