Question

1. which two of the following statements are true?

a. the arctic ice cap has almost vanished.
b. some brown bears evolved during the pleistocene epoch into polar bears.
c. canada was mostly covered in glaciers during the pleistocene epoch.

1. which of the following is true about the polar bear?

a. the hollow, tube-like hairs of the polar bears coat trap heat.
b. the underlayer of short, fine black hair absorbs heat.
c. the polar bears blubber helps conserve heat.

Explanation:

Analyze Question 3

This question asks to identify which two of the listed statements are true based on the text.

• Statement A: "The arctic ice cap has almost vanished."
• Statement B: "Some brown bears evolved during the Pleistocene epoch into polar bears."
• Statement C: "Canada was mostly covered in glaciers during the Pleistocene epoch."

Looking at the image, option B has a hand-drawn circle around the letter "B". Option C is also partially visible with a circle around "B" in the previous question, but for Question 3, the circled options are B and C. Let's evaluate the statements using Reading Comprehension and Textual Evidence.

• Statement B is a well-known biological evolutionary fact (polar bears evolved from brown bears during the Pleistocene).
• Statement C is a well-known geological fact (Canada was mostly covered by glaciers during the last ice age/Pleistocene).
• Statement A is factually incorrect as the arctic ice cap, while shrinking, has not "almost vanished" completely.

Therefore, the two true statements are B and C.

Analyze Question 4

This question asks which of the following is true about the polar bear.

• Option A: "The hollow, tube-like hairs of the polar bear..."
• Option B: "The underlayer of short, fine black hair..."
• Option C: "The polar bear's blubber helps conserve..."

Looking at the image, option C has a hand-drawn circle around the letter "C".
Using Reading Comprehension and Textual Evidence:

• Polar bears have thick blubber (fat layer) which is essential for insulation and conserving heat in freezing Arctic temperatures.
• Thus, option C is the correct statement.

Answer:

Question 3

• A. The arctic ice cap has almost vanished.
• B. Some brown bears evolved during the Pleistocene epoch into polar bears. (Correct answer)
• C. Canada was mostly covered in glaciers during the Pleistocene epoch. (Correct answer)

Question 4

• A. The hollow, tube-like hairs of the polar bear...
• B. The underlayer of short, fine black hair...
• C. The polar bear's blubber helps conserve... (Correct answer)