更多"中度干扰假说(intermediate disturbance hyp"的相关试题:
[简答题]中度干扰理论(intermediate disturbance hypothesis)
[简答题]有效市场假说(Efficient Market Hypothesis，EMH)
[单项选择]盖亚假说认为地球生命体与非生命体形成了一个可相互作用的复杂系统。该假说又分为强盖亚假说和弱盖亚假说。其中弱 盖亚假说认为地球上的各种生物有效地调节着大气的温度和化学构成。在生物体影响生物环境的同时，环境又反过来影响生物进化的过程。强盖亚假说更进一步认为 地球是一个巨大的有机本，具有自我调节的能力。为了这个有机体的健康，甚至可以自行清除那些有害的因素。
根据上述定义，下列选项中属于弱盖亚假说的是（ ）。
A. 地球利用太阳能是一种星球尺度上的新陈代谢作用
B. 环保的重要性在于地球是唯一适合人类居住的星球
C. 大气层出现臭氧层空洞是因为人类过度活动造成的
D. 沙漠中引种耐热植物后，促进了当地旅游业的发展
[简答题]试述群落结构形成的平衡假说和非平衡假说。
[单项选择]利率预期假说与市场分隔假说的根本分歧在于( )。
A. 市场是否是完全竞争的
B. 投资者是否是理性的
C. 期限不同的证券是否可以完全替代
D. 参与者是否具有完全相同的预期
[单项选择] The Headland Hypothesis argues that foraging or non-agricultural tribes have been unable to collect adequate carbohydrates in the rain forest due to its lack of starch producing species, and were thus forced to develop trade relationships with agriculturalists. This hypothesis has been shown to rest on impossibly idealized conceptions of virgin rain forest, forager behavior and history, such that one may argue something diametrically different: millennia of trade relationships with agricultural peoples have led to changes in forager behaviors and in the composition of the forests they inhabit. Supposing that humans modify their environments in ways that are generally favorable toward their continued survival, it follows that an increased reliance on agriculturalists for carbohydrates might lead to the gradual disappearance of rain forest starches. Horticulturalists are likely to dedicate the majority of their efforts toward staple starch crops such as rice or wheat, which in some env
A. Rain forests have always possessed insufficient quantities of carbohydrate-rich resources to support foragers without the aid of agriculturalists.
B. The difficulty of raising carbohydrate-rich plant species in certain areas of the rain forest may have led to the arrest of those species’’ co-evolution.
C. Trade relationships between agriculturalists and foragers may have been the cause of the disappearance of certain carbohydrate-rich plant species, not vice-versa.
D. Foragers may have been willing to trade carbohydrate-rich plants in exchange for the more nutritious food products of agriculturalists.
E. Environmental changes in rain forest composition may have led to the loss of certain foraging techniques.
