Why do plants in early stage exhibit high levels of tolerance? Early plants cannot inhibit the growth of plants. Early deal with harsh conditions, such as fluctuating temperatures plants a and thus must other plants. plants have small and light seeds that germinate well under shade. Late succession species are likely to have speared seeds. large seeds. many seeds. fast growth rate A mechanism of succession in which the presence of one species increases the probability that a second species can become established is facilitation tolerance. inhibition priority effect Inhibition is a mechanism of succession in which the probability that a species can become established depends on the presence of another the arrival of one species at a site affects the subsequent colonization of other one species decreases the probability that a second species will become established. one species increases the probability that a second species will become established. Garlic mustard Alliaria petiolate is a common invasive species in the eastern United States. One mechanism that allows it to dominate in some areas is the production of chemicals that interfere with the ability of other plants to gain nutrients through mutualistic fungi. This mechanism is an example of tolerance. inhibition. the priority effect. facilitation.
14. plants in early seral stage show high leel of tolerance because early plant must deal with harsh conditions as fluctuating temperature. it may be a effect of global warming. as temparature change can cause molecular changes in the cell.
 15. late succession species are also known as climax species. they show fast growth rate. on the result of ecological homoeostasis they show maximum permitted biodiversity.
 16. a process in succession where the presence of one species increases the probablity of second species is known as faciliation. it can be of two types mutulism where both the species are benefited, commensalism where one is benifited and other is uneffected.
 17. inhibition is a mechanism of succession in which one species decreases the probablity that the other species will establish. in this mechanism one plant growth prevents the growth of others.