B) Complete the following sentences:
Another
habitats
eutrophication
Resources pioneer
disturbed
time land survival oxygen
ecosystem.
Ecological succession is the process of one ecological community gradually changing into
A climax community is the final stage of ecological succession in a
Primary succession is the process by which new areas of land with little or no soil are colonized by
Secondary succession occurs in areas where existing ecosystems have been
Aquatic succession is the process of how freshwater ecosystems change over
Decaying organisms add nutrients to the water, causing
or destroyed.
species.
High concentrations of nutrients lead to the growth of algae and other microscopic organisms that use up dissolved
which can lead to the death of fish and other organisms and speed up the process of succession.
Populations of organisms rely on resources in their ecosystems for
Environmental changes disrupt the balance of an ecosystem, making it difficult for organisms to find
Natural disruptions, such as forest fires and disease, can cause damage to an ecosystem and harm populations of
organisms and their