Can someone explain 5 and 7. Still dont get it.

dumb.doofus wrote:When a pterosaur walked or remained stationary, the fourth finger, and with it the wing, could only turn upward in an extended inverted V-shape along each side of the animal�s body.

Thats the answer to 5, now down to 7. Can some one exl. 7?

@kt00381n

7. It can be inferred from the passage that some scientists believe that pterosaurs
(A) lived near large bodies of water
(B) had sharp teeth for tearing food
(C) were attacked and eaten by larger reptiles
(D) had longer tails than many birds
(E) consumed twice their weight daily to maintain their body temperature

Options BC & D aint specified or even remotely discused in the passage. As a matter of fact, even Option E aint discussed. In anycase, no line/sentence implies the frequency or magnitude of consumption.

Option A is ambiguous too. But its the closest option beacuse of the reasons mentioned by yeahdisk and lukester.