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Coral reefs are one of the most fragile, biologically complex, and

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Re: Coral reefs are one of the most fragile, biologically complex, and  [#permalink]

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New post 10 Jun 2018, 08:12
Took 8 minutes for the passage including 2.30 minutes to read the passage.

Got all questions correct.
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Re: Coral reefs are one of the most fragile, biologically complex, and  [#permalink]

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New post 18 Jun 2018, 20:00
jabhatta wrote:
For question 1, OG is B. Why is D not an answer ? Doesnt the first para talk about the way food is prepared ..


jabhatta
Hello,
Your point is true for first paragraph only. The second paragraph is not talking about food preparation by these corals.
When we are asked for the main purpose of a passage, we have to answer keeping all paragraphs in our mind.
That is why B is not the correct answer.

I hope you get the idea.
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Re: Coral reefs are one of the most fragile, biologically complex, and  [#permalink]

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New post 18 Jun 2018, 20:06
ronr34 wrote:
Question 2: why isn't the answer E?

It's stated in the first sentence of the article.... they are " one of the most fragile, biologically complex, and diverse marine ecosystems on Earth."

What's wrong with option E?



Hello ronr34,
Let me explain your query.
It is truly mentioned that they(Reefs) belong to some of the most fragile, etc.. ecosystems. in the passage, but it is not compared with species on dry land.
So we can't tell the specific comparison between dry land species and these reefs from this passage.

Hope it helps.
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Re: Coral reefs are one of the most fragile, biologically complex, and  [#permalink]

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New post 24 Jun 2018, 11:42
i hope i get this passage in the exam
:D

But i got 1 wrong
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Re: Coral reefs are one of the most fragile, biologically complex, and  [#permalink]

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New post 11 Jul 2018, 04:39
Simple passage ,all correct
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Re: Coral reefs are one of the most fragile, biologically complex, and  [#permalink]

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New post 24 Sep 2018, 18:10
P1 - CR ecosystem defined.
P2- human activities are affecting CR.
Main point - CR ecosystem and HA are affecting it in what manners.

1. The passage is primarily concerned with:

(A) describing the effects of human activities on algae in coral reefs - p2
(B) explaining how human activities are posing a threat to coral reef communities - closest.
(C) discussing the process by which coral reefs deteriorate in nutrient-poor waters - no
(D) explaining how coral reefs produce food for themselves - p1
(E) describing the abundance of algae and filter feeding animals in coral reef areas - no

------------------------------------------------
2. The passage suggests which of the following about coral reef communities?
(A) Coral reef communities may actually be more likely to thrive in waters that are relatively low in nutrients. -
(B) The nutrients on which coral reef communities thrive are only found in shallow waters. -
(C) Human population growth has led to changing ocean temperatures, which threatens coral reef communities. - no
(D) The growth of coral reef communities tends to destabilize underwater herbivore populations. - no
(E) Coral reef communities are more complex and diverse than most ecosystems located on dry land. - no comparison.

------------------------------------------------
3. The author refers to “ filter-feeding animals” (lines 23–24) in order to
Typical symptoms of reef decline are destabilized herbivore populations and an increasing abundance of algae and filter-feeding animals.
(A) provide an example of a characteristic sign of reef deterioration - y

------------------------------------------------

4. According to the passage, which of the following is a factor that is threatening the survival of coral reef communities?
P2 has it.

(E) Waste by-products result in an increase in nutrient input to reef communities. - yes

-------------------------------------------------
5. It can be inferred from the passage that the author describes coral reef communities as paradoxical most likely for which of the following reasons?

(C) They are able to survive in an environment with limited food resources. - best of the lot. they survive even in abundance.
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Re: Coral reefs are one of the most fragile, biologically complex, and &nbs [#permalink] 24 Sep 2018, 18:10

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