In an ecosystem, plants and animals depend on each other. Plants depend on animals for ___. A. spreading their pollen B. eating their fruits C. destroying their leaves D. cutting down their branches 相关知识点: 试题来源: 解析 A。植物依赖动物传播花粉。选项 B“eating their fruits”有时对...
produce food and oxygen C. move around to find food D. harm other organisms 相关知识点: 试题来源: 解析 B。植物主要产生食物和氧气。选项 A 是动物的行为;选项 C 动物会移动寻找食物,植物一般不能移动;选项 D 植物一般不会伤害其他生物。植物在生态系统中作为生产者,发挥重要作用。
Plants and animals need each other to survive inan ecosystem. They are also the two life forms in an ecosystem--and without life, there is no ecosystem. Pollination Pollination is a vital part of an ecosystem's functioning and health, according to the Ecological Society of America's fact sh...
An ecosystem is a community of organisms that interacts with their physical environment. Living and nonliving components interact with each other through cycles and energy flows. In simple terms, an ecosystem is an area where organisms, such as plants and animals, work together to create and conti...
All the animals and plants that live in the same location make up a(n) A) biome. B) population. C) ecosystem. D) community. Biotic vs abiotic factors The term "biotic factor" simply refers to the living organisms present within an ecosystem ...
Plants and animals in the ecosystem ___. A. compete with each other B. have the same needs C. don't interact D. are not related 相关知识点: 试题来源: 解析 A。生态系统中的植物和动物相互竞争。选项 B,它们有不同的需求。选项 C,它们会相互作用。选项 D,它们有关系。
A. depend on B. depends on C. are depended on D. are depending on 相关知识点: 试题来源: 解析 A。本题考查动词短语的用法。植物和动物在生态系统中相互依赖。“Plants and animals”是复数,动词用原形;“depend on”是固定短语,没有被动语态和进行时态。反馈 收藏 ...
An ecosystem is all the plants and animals that live in a particular area together with the complex relationship that exists between them and their environment. e.g. Madagascar's ecosystems range from rainforest to semi-desert. 马达加斯加生态系统类型多样,从雨林到半荒漠等不一而足。
The past two decades have seen an increasing number of virulent infectious diseases in natural populations and managed landscapes. In both animals and plants, an unprecedented number of fungal and fungal-like diseases have recently caused some of the most severe die-offs and extinctions ever witnesse...
The International Commission on Radiological Protection (ICRP) have suggested the identification of a series of terrestrial, marine and freshwater sites from which samples of each Reference animal and plant (RAP) could be systematically collected and analysed. We describe the first such study in which...