The author cites which of the following as characteristic of the Weddell seal’s physiological behavior during dives observed in the laboratory?
I. A decrease in the rate at which the seal’s heart beats
II. A constriction of the seal’s arteries
III. A decrease in the levels of lactic acid in the seal’s blood
IV. A temporary halt in the functioning of certain organs
I and III only
II and IV only
II and III only
I, II, and IV only
I, II, and IV only
In the second paragraph, the author has clearly mentioned that during the dives observed in the laboratory, the heart beat rate of the seal decreases, a constriction is observed in the arteries and certain organs are temporarily halted. Statement III is not true. Therefore, answer option (d) is the correct answer choice.