Question

the plaice is ectothermic, or cold - blooded, and the southern bluefin tuna is a regional endotherm, meaning that parts of its body are typically warmer than the surrounding water. the basking shark had been classified as a full ectotherm, a position that became researchers haley r. dolton and colleagues showed that the basking sharks body temperature is consistently 1.0 to 1.5°c warmer than the water. which choice completes the text with the most logical and precise word or phrase? a) inconsolable b) untenable c) unequivocal d) unanticipated

Explanation:

The passage is about the body - temperature characteristics of fish (ectothermic nature). We need to choose the most appropriate word to complete the text. "untenable" means not able to be maintained or defended, which makes the most sense in the context of a scientific statement about the basking shark's body temperature. "inconsolable" relates to being unable to be comforted, "unequivocal" means clear and unambiguous (not relevant here), and "unanticipated" means not expected.

Answer:

B. untenable