LSAT 114 | Section 4 | Logical Reasoning: Q3

LR Question 3 Explanation

QUESTION TEXT: Journalist: Obviously, though some animals are purely carnivorous…

QUESTION TYPE: Main Conclusion

CONCLUSION: Animals and plants are interdependent.

REASONING: Animals would die without plants and plants would die without animals.

ANALYSIS: For a main conclusion question, think about the argument as a whole. It isn’t enough that an answer choice is true: it has to be the main point of the argument.

Here, the argument uses examples to show that animals need plants and plants need animals.

___________

1. Animal life isn’t necessary for photosynthesis. Photosynthesis depends on the sun. Animal life is responsible for replenishing carbon dioxide. 
2. This is true, but the main point is much broader.
3. This is true, but the main point was that plants and animals depend on each other.
4. This is true: humans breathe and emit CO2 like other animals. But the main point is about interdependence.
5. CORRECT. Plants and animals need each other.