bb61 wrote:
The argument in the passage relies on which of the followingassumptions?
(A) Sandactylus would not have had networks of blood vessels in the skin of its wings if these networks were of no use to Sandactytus.
the network of blood vessels serve only to disperse heat generated in flight.
so it has a certain function and usage.
negation of this option will break the argumentapart
(B) All creatures that fly by flapping their wings have networks of blood vessels in the skin of their wings. we can
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