Exam 18: An Introduction to Ecology and the Biosphere

If you study how two species of finches compete for food,you are trying to answer a question about ________.

What are estuaries?

In what part of the ocean are phytoplankton found?

Water-storing plants and deeply rooted shrubs are plants that characterize ________.

With regard to the environment as a whole,when is the worst time to apply pesticide to your lawn?

What name is given to the open ocean?

Examine the figure below.Phytoplankton live in the ________.

Which of the following can moderate climate by absorbing heat when the air is warm and releasing heat when the air is cold?

What level of ecology is concerned with both the biotic and abiotic aspects of an environment?

Ecology is the study of ________.

Please read the following scenario to answer the following questions. CO₂ is not the only greenhouse gas that impacts global climate change. Other greenhouse gases (GHGs) may be equally or more effective than CO₂ at trapping heat on Earth. Climate scientists determine how much a GHG may impact global warming based on two factors: the efficiency with which a GHG absorbs energy (i.e. traps heat on Earth) and the length of time (in years) that the gas remains in the atmosphere. A unit of measurement called the Global Warming Potential (GWP) is used to describe how much energy a GHG absorbs over a specific period of time (100 years is a standard time frame). All GWP values of GHGs are compared to the GWP of CO₂, which is given a value of 1. -Chlorofluorocarbons (CFCs)are greenhouse gases that,for a specific amount of mass,trap significantly more heat than CO₂.How can you classify CFCs?

________ are the dominant herbivores of savanna ecosystems.

Which of the following is abiotic?