Describe TWO ways in which fire ants either positively or negatively affect ecosystem services related to agriculture.

For the article "Effects of an invasive predator cascade to plants via mutualism disruption" (https://www.nature.com/articles/ncomms14557) answer the following points: - What was the question addressed by the author(s)? What was the author's hypothesis? - Overall, what did the author physically do, use, and/or document to test the hypothesis? - Summarize the results.

Match the following mutualism type with the appropriate example. Bees eat nectar and transfer pollen Reef-froming corals provide nitrogen to dinoflagellates which provide carbohydrates to coral [Choose ] [Choose ] Resource-resource Service-resource [Choose ]

How do we sometimes benefit from introduced species that are not invasive? Explain using examples you have witnessed or personality benefited from.

Why is pollination imortant in the ecosystem?

Which community is more vulnerable to invasion by outside animals and plants?

For the article "Effects of an invasive predator cascade to plants via mutualism disruption" (https://www.nature.com/articles/ncomms14557) answer the following points: - Summarize the results - What did the author(s) conclude about the question or pattern based on the data? - What are the strengths/weaknesses of the study? What might you do as a follow-up?

Based on the intermediate disturbance hypothesis, a community's species diversity is increased bya) frequent immigrations of new speciesb) moderate levels of disturbancec) intensive disturbance by humansd) stable conditions with no disturbance

Briefly explain the green house effect.

The box-and-arrow model below summarizes some of the feedback links observed in the Amazon rain forest. Select true statements, based on whether they are represented by the model. (Note that the boxes and arrows in this model are used differently than those in the nutrient cycle models.) Select all of the ones that apply.  A) An increase in CO2 increases the frequency of droughts. B) The death of trees promotes the invasion of grasses. C) Tree growth reduces atmospheric CO2. D) The burning of fossil fuels increases atmospheric CO2. E) Drought increases the frequency of forest fires.