The polar bear evolved from brown bear ancestors.
举一反三
- It can be inferred from the passage that the polar bear population of Hudson Bay ________. A: is one of several polar bear populations B: is unfriendly toward humans C: consumes food voraciously (贪婪地) during the whole year D: is an endangered species
- The fox asked the bear to cut a hole in the ice to ______. A: help the bear catch more fish B: kill the bear in the icy hole C: stop the bear from catching any fish D: keep the bear from knowing about the fox
- 33. They protect the bear from ______
- Shark is to hammerhead as bear is to () A: arctic B: cub C: moose D: polar E: paw
- Which animal would you find on a farm?() A: Chicken B: Polar bear C: Lion