Polar Bear - Đề 1 (1)

Which of the following is False about Polar bears

• Polar bears are uniquely suited to the artic Circle's harsh crioumstances

• Polar bears suffer from various healthy problems due to the build - up of fat under.

• Under their epidrmis, they have up to 11 cm of fat

• Polar bear are increasingly threatened by climate change, yet their extinction might have far - reaching implications.

What did Alanda Lenox and Atien Goodship discover in 2008?

• Pregnant bears increase the density of their bones

• Pregnant bears increase the density of their for

• Hibernating brown bears have the ability to increase bone density

• Pregnant bears…………………..

The word "bedridden" in paragraph 4 can best be replaced by?

• sick - abed

• smart

• healthy

• prcpitious

3. What is osteaporosis?

• A.

• B. Adisease coused by reduced bone density

• C.

• D.

4.  How long do female Polar bears fast for during pregnancy?

• A. two year

• B. 2 month

• C. Six month

• D. Six year

5. What is the function of the maternity den dug by female polar bears?

• A.

• B

• C

• D. To help the female polar bears surive during the fasting period

8. Why is the study of polar bear problem solving abilities important?

• A

• B

• C. It challenges the percaption of polar bears as unitelligent and violent

• C

9. In Jennoj Zoo, a bears has been seen using a branch as a ……….

• A

• B

• C. took

• D

10. What might be lost if polar bears were to go extinct due to climate change?

• A. The opportunity to study their bone remodelling mechanism

• B

• C

• D

Câu 2: Polar bears.......?

• C. able to control their loviels of “bad” cholesterol by genetic means.

• A.

• B.

• D.

Answer explanation