mortality) between the organisms in the ecosystem.问题补充:匿名 2013-05-23 12:21:38 在生态系统中的生物之间的死亡率)。 匿名 2013-05-23 12:23:18 死亡率)的生物之间的生态系统。 匿名 2013-05-23 12:24:58 匿名 2013-05-23 12:26:38 死亡率) 之间的生态系统中的生物。 匿名 201...
When ingested by insects, these endotoxins undergo cleavage, leading to activated proteins which bind to specific receptors present in the insect midgut. This brings about cell lysis and subsequent death of the insect by cessation of feeding. In addition, the ECB tolerant maize from Ciba Seeds ...
19 What is the primary source of energy for all the organisms in the ecosystem represented below?3Sun①//m/b^2⋅b^2⋅10km/m(1)photosynthesis in the producers(2)respiration in the heterotrophs(3)light energy from the Sun(4)minerals from the rocks 相关知识点: 试题来源: 解析 3 ...
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Which of the following organisms helps to improve soil quality in an ecosystem? A. Rabbits B. Beetles C. Birds D. Snakes 相关知识点: 试题来源: 解析 B。本题考查词汇与生态系统知识。Beetles(甲虫)中的一些种类以腐烂物质为食,在土壤中活动,有助于改善土壤质量。Rabbits(兔子)主要是食草动物,对土壤...
"The goal of gene drive applications is to introduce a permanent change in the ecosystem, either by introducing a phenotypic change or by drastically reducing or eradicating a local population or a species. This is a fundamental difference to GM crops for which each single generation of hybrid ...
life. Many plants and animals have adapted to the specific challenges for survival in the desert ecosystem. Desert animals have adaptations including special coloring, structures and behaviors, and desert plants have developed ways to collect and store water in order to survive in this harsh climate...
In a wetland ecosystem, which of the following organisms is most likely to be affected first if the water level drops significantly? A. Aquatic plants B. Amphibians C. Birds that feed on fish D. Terrestrial insects 相关知识点: 试题来源: ...
The energy and biomass relationship between the organisms at different trophic levels can better expressed by Afood chain Bfood web Cecological pyramids Denergy cycle.Submit Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem? APhytoplankton BFish...
the place where temperatures and conditions are dangerous and extreme 答案 A词义猜测题。“ecosystem”意味“生态系统”,故而选择A。 结果三 题目 Extremophiles(极端微生物) are organisms that have been discovered on earth that survive in environments that were once thought not to be able to sustain ...