Diet studies show that spiders consume small insects, whereas lizards consume larger insects and spiders. if this system is a trophic cascade, which part of the food web likely has the largest effect on plants? explain your reasoning.

Predators eat prey. In doing so, predators can affect both prey abundance and their behavior (for example, prey gets scared when predators are around and hide or move away). In this situation, by controlling the densities and / or behavior of their prey, predators indirectly benefit and increase the abundance of their prey. Trophic cascades by definition must change at a minimum of three feeding levels. In fact, this is how it occurs most frequently (predator => herbivore => primary consumer), although evidence of trophic cascades of 4 and 5 levels has been detected in nature, but they are much less commo    

When ecosystems are green, predators are often frequent with herbivores under control, while, when they are too overloaded, the loss or elimination of predators is often responsible for high grazing densities and loss of plants. This tri-trophic interaction, where predators benefit from plants by controlling herbivore populations, is known as the trophic cascade. Hairston et al. (1960) proposed for the first time that the world is green because predators control herbivores, and Carpenter and his colleagues further developed the concept of trophic cascade with experimental studies in lakes, demonstrating that fish can control the abundance of zooplankton which, in turn, controls phytoplankton levels

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.