Hi ananya88888888888,Great question, because B and E
sound almost identical, and the whole thing turns on one word. Let me point you back to the exact line the passage gives:
"the vertical pressure gradients within the blood vessels are counteracted by similar pressure gradients in the surrounding water"Two words are doing all the work:
counteracted and
similar.
What "counteract" (B) says: the outside water pressure
balances - cancels out - the inside blood-vessel pressure. And the passage tells you these gradients are
similar, i.e. roughly equal. Equal, opposing forces cancel, so nothing shifts - which is exactly why "the distribution of blood... remains about the same." B is a clean restatement.
What "exceeds" (E) says: the water pressure is
greater than the blood-vessel pressure. That is a different physical claim. If one force
overpowered the other, the balance would break and blood would actually get pushed around - the distribution would
change, not stay the same. So E doesn't just say something extra; it would predict the opposite of what the passage reports.
That's the core split:
counteract = balance/cancel (equal); exceed = overpower (greater). The passage needs a balance to explain "stays about the same," so "exceeds" breaks it.
A quick everyday test to lock this in:- "The rope teams were evenly matched, so the flag
didn't move" - forces
counteract each other (equal). Nothing shifts.
- "One rope team
overpowered the other" - one side
exceeds the other. The flag moves.
The sea snake's blood is that flag. "Stays about the same" only fits the first sentence - so B, not E.
Answer: Bananya88888888888
why is E wrong for q2, what is the fundamental. difference between the right answer and option E, one says exceeds one say counterparts, but wont they imply the same thing, how do we eliminate E?