7. Define 10% rule of ecology: 8. Explain why there are different amounts of energy represented at each level? 9. Organisms that help to recycle matter from dead and decaying organisms are called: 10. How have humans impacted the ecosystem? Give examples.

7) Describe how the types of vegetation present on this farmland would change if a fire burned down all the trees 120 years after the land was abandoned.

What is the difference in the behavior of matter and energy in ecosystems? Group of answer choices a. energy is necessary for ecosystems while matter is not b. energy enters and leaves continuously and matter does not c. matters enters and leave continuously and energy does not d. both move through ecosystems in similar ways (no difference) e. energy can only be captured by bacteria with special properties

Which of the following statements about ecology is correct? CHECK ALL THAT COULD BE CORRECT  A)Ecological studies may involve the use of models and computers. B)Ecology is the study of the interactions between biotic and abiotic aspects of the environment. C)Ecology is a discipline that never considers natural selection and evolutionary history D)Ecologists may study populations and communities of organisms. E)Ecology spans increasingly comprehensive levels of organization, from individuals to ecosystems.

Below is a list of statements that can be sorted into two categories: value claim and scientific claim. Choose the correct label for each claim. 1. The government should allow for the continued burning of fossil fuels because it is good for the economy. The burning of fossil fuels has led to an increase in carbon __2___ in the atmosphere, contributing to a stronger greenhouse effect. __2__ The Earth does not have an unlimited supply of fossil fuels. __2__ Mining and burning fossil fuels is bad. __1_ Fossil fuels are bad, so the government should enact policies to reduce their use. 1. Value Claim 2. Scientific Claim

1.Modern agroecosystems differ from natural ecosystems in all of the following ways except: A. they attempt to suppress ecological succession by allowing only pioneer species to thrive B. they tend to raise crops in multiculture rather than monoculture (a single species) C. they tend to plant crops in neat, orderly rows rather than complex spatial arrangements D. they make the food chain less complex, so that lower species diversity results E. they (the artificial ecosystems) tend to be less complex than the natural ecosystems

discuss 4 major roles that species play in an ecosystem.

Which of the following options is/are goods of ecosystem?A. Fresh airB. Fresh waterC Timber for furnitureD. All of the aboveE. None of the options are correct

The study of nutrient cycling though the environment is an example of which of the following? a. organismal ecology b. population ecology c. community ecology d. ecosystem ecology

We often hear about the importance of conserving biodiversity, but the reasons aren’t always clear. Briefly explain 3 ecologically relevant reasons why biodiversity is important.