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Question

Can anyone help on this ?

Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.
A. horny jaws function for teeth-- 'For' is wrong here , should be 'function as'
B. its horny jaws function for teeth -- in some contemporary turtle species - so should be plural
C. its horny jaws function as do teeth- same as B
D the horny jaws function as teeth do -- do is not required -- redundant
E the horny jaws function as teeth

shashankp27 · Answer

Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.
A. horny jaws function  for  teeth-- 'For' is wrong here , should be 'function as'
B.  its  horny jaws function for teeth -- in some contemporary turtle  species  - so should be plural 
C.  its  horny jaws function as do teeth- same as B
D the horny jaws function as teeth  do  -- do is not required -- redundant
E the horny jaws function as teeth

nammers · Answer

A) 'Their' is the pronoun but the subject 'The Turtle' is singular

B) is incorrect or correct based upon idiom choice:

The idiom should be 'function as' which mean to function like something, not 'function for'

C) and D) are incorrect using 'do'

E) is the correct choice

metallicafan · Answer

+1 E

In certain idioms, "as" doesn't need to be followed by a clause.
"function as...", "work as...", etc.
You have to memorize the idioms. Yes, I know it is hard. Sad but true.

crick20002002 · Answer

E for me.

" function as " is the correct idiom

Crick

hoogly · Answer

Solve using 2-3 Split method :

Hmm if you go by 2-3 split as laid out in mgmat book. This is how we solve it as,
1. Read the question once and understand 
2. Identify a keyword for split by looking at all options.
3. " Function xxx " gives me a 2-3 split :
4. So i group options C,D,E into group 1 with " function as" being the keyword and other options A , B in group 2
5.Now as laid above, the correct idiom use is " function as " so implemetig this grammar rule on my groups , i eliminate group 2
6. Left out with C , D and E
7. read by substituting each of the option and look for meaning.
8. C and D wont make sense beacuse of ' do '
9. left out is E - correct answer
10. Do this mentally , should take less than a minute.

Solve using Re-splits :
 
also,

after point 6 , re split using ' its/ the '

a. so we have C in a group and D,E in other group
b. Now "jagges edges of ___ horny" refer to some turtle species
c. species can be both singular / plural based on usage like sheep.
d. so here since it referes to " some turtle species " , "its horny jaws " is wrong eliminate C
e. Out of D and E , substitute each in sentence and read , since "do" doesnt make sense in D, eliminate D
f. we are left with E - correct answer.

MBAhereIcome · Answer

its does not agree in number with plural 'tutle species'.
'function as' is correct idiom.
'X functions as Y' NOT '..as Y do'

E is the winner

Practicegmat · Answer

I need one clarification ....
Can we read the sentence as :

Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of the horny jaws function as teeth function.

If the above is true, is there any harm if I put "do" at the end ? Could you please clarify ?

I marked D

Thanks !

Thanks !

tuanquang269 · Answer

Between D and E, E is more concisely and simple. Also, "as" helps the noun after it meaning "function".

crick20002002 · Answer

Helping verbs like do, have, did etc are used in the end of a sentence only if the context is not clear (there is ambiguity in the meaning).

eg I like John more than my brother. (Incorrect) - Does this mean I like John more than I like my brother OR I like john more than my brother likes John.

I like John more than my brother does. - (Correct) - Means I like John more than my brother likes John.

In the above problem, the context is clear that we intend to say that jagged edges function as teeth. Hence we can live without the helping verb "do".

Crick

mydreammba · Answer

How can "jaws function be compare to teeth" does it make sense?

I went with D

Plz correct me if i am wrong

Thanks in advance

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