试题来源: 解析 C。解析:在生态系统中,生物因素(biotic factor)是指生物。选项A“Sunlight”(阳光)、选项B“Water”(水)和选项D“Air”(空气)都是非生物因素(abiotic factor),而选项C“Plants”(植物)是生物,属于生物因素,所以答案是C。反馈 收藏
In the case of animals it is usually food; in the case of forest plants it may be light; in the case of substrate inhabitants it may be space, as in many shallow-water bottom-dwelling marine organisms. Indeed, it may be for any of the factors, physical as well as biotic, that are...
Intensive ungulate browsing significantly impacts forests worldwide. However, it is usually not single browsing events that lead to sapling mortality, but the little-researched interactions of browsed saplings with their biotic and abiotic environment. (
What is the life cycle of Plasmodium vivax? Explain five abiotic factors that affect the ecosystem. Explain four characteristics you could identify to distinguish living organisms from viruses since they are not considered to be living organisms. ...
Soil is a component of primary importance in crop production, even if it is often neglected, or only regarded as a physical support for the growth of plants. However, with the increasing societal concerns for the sustainability of agriculture, soil must be considered as a living system. Its ...
The increased impact score in freshwater ecotoxicity (Table 3) is primarily due to aluminum, a substance for which no factors were anticipated in the ILCD factor set. This substance has a significant impact on the assessment’s impact factor, accounting for between 89 and 98 percent. ...
data recorded over a period of 10 years (1990–2000). As such, a total of 77,251 stands that occupy 211,954 hectares have been investigated in regard to silver fir behaviour. MATLAB scripts were used for analysing consistent data volumes as well as the impact of eight factors on the ...
Thus, if other factors are omitted, we can assume that the maximum chlorophyll-a concentration was observed 4.7 days later than the seasonal maximum air temperature. Thus, based on the information about the seasonal course of air temperatures, which are constantly fixed, it is possible to ...
KEGG [52] is a database resource for understanding high-level functions and utilities of the biological system, such as the cell, the organism, and the ecosystem, from molecular-level information, especially large-scale molecular datasets generated by genome sequencing and other high-throughput exper...
The planktonic index of biotic integrity (P-IBI): An approach for assessing lake ecosystem health. Ecol. Indic. 2009, 9, 1234–1247. [Google Scholar] [CrossRef] Jeppesen, E.; Jensen, J.P.; Søndergaard, M.; Lauridsen, T.; Landkildehus, F. Trophic structure, species richness and ...