Цель: Понять
A. Brown bears are important because they control the number of other animals. This statement is accurate. Brown bears play a crucial role in regulating the population of various species in their ecosystem by preying on certain animals, thus helping maintain a balance in the food chain.
B. Which is NOT a threat to the population of brown bears according to the text? The correct answer is 4) People hunt bears to keep them in zoos. This statement is not mentioned in the text as a threat to the population of brown bears. The text highlights threats such as people killing animals, limited suitable habitats, and the destruction of forests, but not hunting for zoos.
C. A thick layer of body fat helps a polar bear to survive in a cold climate. Polar bears have a thick layer of body fat, known as blubber, which acts as insulation to keep them warm in extremely cold climates. This adaptation helps them withstand the frigid temperatures of their Arctic habitat by providing insulation and energy storage.
Hopefully, this explanation helps clarify the information provided in the text about brown bears and polar bears.