A. The variety of different species in an ecosystem B. The number of plants in a forest C. Only the large animals in an area D. The amount of water in a river 相关知识点: 试题来源: 解析 A。解析:生物多样性指的是生态系统中不同物种的多样性,包括动物、植物、微生物等各种生物种类的丰富...
A. A single species of fish. B. A group of the same kind of trees. C. Different species of birds and animals. D. A pile of stones. 相关知识点: 试题来源: 解析 C。生物多样性体现为不同种类的生物。选项 A 和 B 都是单一物种,不能体现多样性;选项 D 石头不是生物,与生物多样性无关。
B. It helps to maintain the balance of the ecosystem. C. It makes the earth hotter. D. It reduces the number of animals. 相关知识点: 试题来源: 解析 B。解析:生物多样性的重要意义之一是有助于维持生态系统的平衡。A选项说只提供更多食物太片面,C选项生物多样性不会使地球更热,D选项生物多样性...
A. Biodiversity has nothing to do with human health. B. A high level of biodiversity means a single - type ecosystem. C. Biodiversity is crucial for the adaptation of life to environmental changes. D. Biodiversity can be E. asily replaced. ...
Which of the following is an example of biodiversity? A. 出给广极温根却细主类周天参广出给广极温根却细主类周天参广A single tree出给广极温根却细主类周天参广出给广极温根却细主类周天参广 B. 我研市照术切该又我研市照术切该又A forest with many different species of plants and animals...
Which of the following statements about biodiversity conservation is TRUE? A. It only benefits wild animals. B. It has no impact on human health. C. It helps provide ecological services. D. It is not necessary for sustainable development. 相关知识点: 试题来源: ...
Which of the following is an example of the importance of biodiversity? A. Destruction of forests B. Pollution of rivers C. Providing clean air and water D. Overuse of pesticides 相关知识点: 试题来源: 解析 C。提供干净的空气和水是生物多样性重要性的一个例子。选项 A 破坏森林错误;选项 B ...
Which of the following is an example of how biodiversity can be beneficial to humans? A. A single crop species can be easily managed in agriculture B. Fewer species in an ecosystem mean less competition for resources C. Many different species can provide a variety of drugs and medicines D....
aContemporary and refined, the RANCEAS URI series reinterpret the round 当代和提炼, RANCEAS URI系列重新解释圆[translate] ascreening some chemicals which have eradicate or suppress activity is the first step in chemical control of plant diseases. 筛选有根除或压制的有些化学制品活动是第一步在植物病化...
Which of the following is a direct negative impact of the decline in biodiversity? A. More beautiful landscapes B. Fewer natural disasters C. The disruption of food chains D. Higher air quality 相关知识点: 试题来源: 解析 C。解析:生物多样性在维持自然和谐方面非常关键。选项A,生物多样性下降不...