Why are producers important in the ecosystem? A. They provide oxygen. B. They are the base of the food chain. C. They break down waste. D. They consume other organisms. 相关知识点: 试题来源: 解析 B。解析:Producers provide the base of the food chain....
Ecosystems also represent an exceptional source ofoutdoor recreation opportunities.Ecological balance is important for the continuedsurvival and existence of organisms as well as the stabilityof the environment. The balance in the ecosystem, whichmust be maintained,may be disturbed as a result of ...
A. They are not important. B. They can be hunted for fun. C. They are part of the ecosystem. D. They are a waste of resources. 相关知识点: 试题来源: 解析 C。解析:A 选项野生动物很重要,不是不重要。B 选项猎捕野生动物取乐是错误的行为。D 选项野生动物不是浪费资源。C 选项野生动物是...
题目Why is it important to protect wild animals? A. They are delicious. B. They are a source of income for poachers. C. They play a crucial role in the ecosystem. D. They are a nuisance. 相关知识点: 试题来源: 解析 C。保护野生动物很重要是因为它们在生态系统中起着至关重要的作用。A...
A. They are cute. B. They play an important role in the ecosystem. C. They can be used for experiments. D. They are delicious. 相关知识点: 试题来源: 解析 B。解析:文章中明确指出野生动物在生态系统中扮演重要角色,A 选项可爱不是重要原因;C 选项用于实验是错误的做法;D 选项把野生动物当食物...
( ) 1. Why is the Amazon rainforest very important to the Earth?C A. It is the largest rainforest in the world. B. It helps maintain the fine balance of the Earth's ecosystem. C. It is home to a variety of plants and animals. D. It breathes life into the planet by fixing car...
Why is it important to protect wild animals? A. Because they are beautiful. B. Because they are useful for humans. C. Because they are part of the ecosystem. D. Because they are rare. 相关知识点: 试题来源: 解析 C。解析:保护野生动物很重要是因为它们是生态系统的一部分。
Why is it important to protect wild animals? A. They are beautiful. B. They are useful for humans. C. They are part of the ecosystem. D. They are not important. 相关知识点: 试题来源: 解析 C。野生动物是生态系统的一部分,对维持生态平衡起着重要作用。选项 A“它们很漂亮”不是主要原因;...
For quite some time we have known the importance of diversity in natural ecosystems. This importance was pointed out by two giants in natural ecosystem ecology, both who recently left us. The passing of Thomas Lovejoy and E. O. Wilson gives us reason to reflect on the future of our ...
) 1. Why is the Amazon rainforest very important to the Earth?A. It is the largest rainforest in the world.B. It helps maintain the fine balance of the Earth's ecosystem.C. It is home to a variety of plants and animals.D. It breathes life into the planet by fixing carbon. 相关...