visgmat

Agree with Ram. The use of "their" is confusing as it does not clarify whether it is for "additives" or "natural constituents"

Agree with ramanathansankar. For 1, it should be B. For 2, its C. What are the OAs?

B it is. The choice correctly places the modifier close to erie canal and has the correct usage of parallelism

Agree with huskers on the idiom and yes the parallelism is maintained in B

For one I was confused between C & E, but E looks better For second it should be B

Agree with OA. Answer should be E Paralellism is "threats of lawsuits" and "rising costs of malpractice insurance" both being faced by doctors.

Agree with Score 800, D & A it should be In the second sentence, "Contrast with" is used to highlight differences between 2 similar things.

Go with E

Agree with OA. E is wordy and distorts the meaning

Agree with D

Agree with D. The sentence tries to compare the fact that the heart cells have exclusive orientation despite beating together in unison. One may be tempted to choose C but we need to keep in mind the meaning of the sentence.

Answer should be B. Correct usage of the idiom "more than" and maintains parallelism with the infinitives

should be A. Parallelism of censures with "while celebrating" B , D & E have a tense mismatch (censures is present while they indicate past tense) C does not reflect the contrast

agree with adcambridge.....is there something missing in the question or answer choices

I think the answer should be "B" i.e. 7 numbers 100000 = 10^6 10000000 = 10^7 In addition to adcambridge's explanation, the number he forgot was 2000000 Hence the total numbers would be 7 and not 6

Total number of such combinations = 24. Each digit (i.e. 1,2, 3 or 4) would occupy the unit's, ten's, hundred,s or thousand's place 6 times. Hence start with unit's place: 6(4+3+2+1) = 60 Likewise 60 would be the total in the unit's place, hundred's place and thousand's place. If you were to start the addition process, the total would be 66,660. Let me know if the explanation looks ok :)

Go with CDE In the last sentence I think usage of comma changes the meaning that gets corrected in E

Agree with A, C. I was also tempted to go in for A in the second question but the parallelism is wrong

C it is

Go with E. "Whether" is almost always preferred over "If". Here the corect structure ispresent only in option E

A and B

Agree with A

1) I think it should be 'b' because the sentence says: giant fungus that is an interwoven ............extends for more than 30 acres 2) I think it should be "E" because the sentence has a singular structure the resulting flow pattern........is known as "standing waves." Although I do agree that choice "E" lends a passive tone to the sentence, something that is not really encouraged in GMAT. 3) Agree with subzero, it should be A. Structure is correct although I would have like a "not..but" construction but the choices with that construction change the meaning of the sentence