The following text is from a biology article.
Camouflage is a survival strategy used by many animal species. Some animals, like chameleons, can actively change their color to match their surroundings. Others, like the Arctic fox, adapt seasonally—brown fur in summer transitions to white in winter. Still others rely on fixed patterns that blend with their typical habitat.
What is the primary purpose of the text?
To argue that camouflage is the most effective survival strategy
To describe the hunting techniques of predatory animals
To illustrate different types of animal camouflage
To explain why some animals cannot use camouflage
Correct Answer: C
Choice C is the best answer. The text presents three types of camouflage: active color change, seasonal adaptation, and fixed patterns.
- Evidence: The text introduces "Camouflage" and lists examples: "actively change their color" (chameleons), "adapt seasonally" (Arctic fox), and "fixed patterns."
- Reasoning: The text uses specific examples to show the variety of camouflage strategies.
- Conclusion: The purpose is to illustrate these different types.
đź’ˇ Strategy: Notice the pattern: General concept -> Example 1 -> Example 2 -> Example 3.
Choice A is incorrect because no comparison to other strategies is made. Choice B is incorrect because hunting techniques aren't discussed. Choice D is incorrect because animals without camouflage aren't mentioned.