Exam 4: Ecosystems: What Are They, and How Do They Work

A cockroach is an example of an omnivore because it feeds on both living and dead material.

What has carbon as one of its major components? 

What is most likely to be trapped in the atmosphere when solar radiation is converted to heat? 

____________________ are essential to the flow of energy because they consume waste and recycle nutrients.

PROFILE -Which letter in the diagram indicates the process in which water flows underground to the oceans?

A(n)____________________ is the terrestrial ecosystem in which you would find the fewest decomposers.

What percentage of the Earth's surface is covered by water? 

Which organism feeds on dead organisms? 

Which soil horizon contains no organic material and is composed of parent material? 

To which cycle is guano an important component? 

Through which process is nitrogen gas converted to ammonia? 

Which soil layer contains unique colours,and often iron,aluminums,humus,and clay leached from higher layers? 

What factor is the most important in determining which biome is found in a particular area? 

Humans interfere with the natural nitrogen cycle by undertaking timber-harvesting activities.

The increasing levels of carbon dioxide is one of the major contributors to global warming.

How is clay classified in terms of permeability and porosity? 

Which of the following approaches to studying ecosystems utilizes LIDAR.

Which soil type consists of leaf mould,a humus-mineral mixture,and silty loam? 

ECO GRAPH -According to the graph,in which terrestrial ecosystem are more nutrients stored in the vegetation than in the soil?

Which term refers to a complex feeding pattern for consumers in an ecosystem?