Animals are an important part of the ecosystem. What will happen if we don't protect animals? A. The ecosystem will remain stable B. The ecosystem will become better C. The ecosystem will be disrupted D. The E. cosystem will not be affected ...
A. It has no influence on the ecosystem B. It can disrupt the balance of the ecosystem C. It helps maintain the balance of the ecosystem D. It only benefits humans 相关知识点: 试题来源: 解析 C。解析:保护濒危动物对生态系统的意义在于有助于维持生态系统的平衡。A选项错误,是有影响的。B选项...
A. They disrupt the normal life cycle of local animals when they migrate B. They bring new genes to different ecosystems, which can increase genetic diversity C. They always cause over - population in the places they migrate to D. They have no connection with the E. cological balance of ...
What are producers in an ecosystem? A. Animals that eat other organisms. B. Bacteria and fungi that break down dead organisms. C. Plants that convert sunlight into energy. D. Humans who disrupt E. cosystems. 相关知识点: 试题来源: ...
What is an ecosystem? A. A group of animals. B. A community of living organisms and their physical environment. C. Only plants. D. Just the physical E. nvironment. 相关知识点: 试题来源: 解析 B。解析:文章中明确提到“An ecosystem is a community of living organisms and their physical ...
2. What does the word “ecosystem” mean? A. A group of animals. B. A type of plant. C. A community of living things and their environment 相关知识点: 试题来源: 解析 C “Ecosystem”指的是一个由生物群落和它们的环境组成的系统,包括植物、动物以及它们周围的非生物因素,如水、空气和土壤。
Animals leaving. B. People cutting down trees. C. River drying up. D. Plants dying. 相关知识点: 试题来源: 解析 B。解析:文章中明确提到 some people came and started cutting down trees. This disrupted the balance of the ecosystem.(一些人来开始砍伐树木。这破坏了生态系统的平衡。)反馈...
What is the general theme of the passage? A. The role of animals in the ecosystem. B. The history of ancient civilizations. C. The methods to improve study efficiency. D. The future development of space travel. 相关知识点: 试题来源: ...
A. To provide food for animals. B. To provide shelter for animals. C. To maintain the balance of nature. D. All of the above. 相关知识点: 试题来源: 解析 D。解析:植物在生态系统中的作用包括为动物提供食物和庇护所,以及维持自然平衡。反馈 收藏 ...
What provides drinking water for animals in the forest ecosystem? A. Trees. B. Soil. C. Streams and ponds. D. Undergrowth. 相关知识点: 试题来源: 解析 C。解析:“Streams and ponds provide drinking water for animals”说明了森林生态系统中为动物提供饮用水的是溪流和池塘。反馈 收藏 ...