Multiple Choice
The reduction of loss of heat from a porpoise's flipper is explained by
A) Strong constriction of arteries
B) A countercurrent heat exchange system
C) Having the veins in the flipper surrounded by arteries
D) Decreased metabolic rate in the flipper
Correct Answer:
Verified
Correct Answer:
Verified
Q11: Scope for growth is<br>A) The amount of
Q12: A population from higher latitude of an
Q13: Osmolytes are chemically<br>A) Indistinguishable from inorganic ions<br>B)
Q14: Which of the following is not a
Q15: When salinity increases, many invertebrates react by<br>A)
Q17: As oxygen concentration in sea water decreases<br>A)
Q18: Osmosis involves<br>A) The movement of dissolved salts
Q19: Damage caused by temperature could be recognized
Q20: Oxygen consumption rate is a good measure
Q21: When sea water freezes<br>A) Some fish may