In Section 1 of the Ecology Review Worksheet #2, students were asked to identify the different levels of ecological organization, such as individual organisms, populations, communities, ecosystems, and the biosphere. The answer key for this section provides detailed explanations for each level, helping students understand how they are interconnected and dependent on each other for survival.
For example, at the individual organism level, students should have listed specific examples of organisms and explained how they interact with their environment. At the ecosystem level, students should have described the different biotic and abiotic factors that make up an ecosystem and how they influence each other.
Ecology Review Worksheet #2 Answer Key Back
Answer Key for Section 2
Section 2 of the Ecology Review Worksheet #2 focused on ecological relationships, such as predation, competition, mutualism, and parasitism. The answer key for this section provides examples of each type of relationship and explains how they impact the populations involved.
For instance, students should have identified predation as a relationship in which one organism hunts and consumes another for food. They should have also explained how competition occurs when two or more organisms vie for the same limited resources, leading to a decrease in population numbers for one or both species.
Answer Key for Section 3
Section 3 of the Ecology Review Worksheet #2 covered energy flow and nutrient cycling in ecosystems. The answer key for this section outlines the process of energy transfer from producers to consumers and decomposers, as well as the recycling of nutrients through the food chain.
Students should have demonstrated an understanding of how energy is lost as it moves up the trophic levels, with only about 10% being transferred from one level to the next. They should have also explained how decomposers play a crucial role in returning nutrients to the soil for producers to use.