Exam 12: Ecology

A biome characterized by warm,fairly dry climate that primarily contains grasses with scattered,isolated trees is a ________.

Aquatic biomes cover most of the Earth's surface.

A sudden natural catastrophe resulting in massive die-offs would be categorized as a density-________ limiting factor.

Imagine you were the manager of a national park with cheetahs.The cheetahs feed primarily on gazelles,while the gazelles eat grass.It takes an acre of grassland to feed one gazelle,and it takes ten gazelles to feed one cheetah.You have a maximum of ten cheetahs when the system is functioning optimally.You would like to increase the cheetah population because people pay money to see the cheetahs.How much grassland do you need to double the cheetah population supported by this grassland?

The distribution of terrestrial biomes on Earth depends mostly on ________.

Disturbances to an ecosystem,such as fires and floods,are often seen as negative.Describe a situation where regular disturbances are not only beneficial but are also required to sustain the ecosystem.

If you put some water in a bucket and left it in your backyard, the water level would rise and fall over time with the weather. The table represents data collected from a bucket that was initially filled to the halfway mark with water. The water depth was measured on the first of the month for 2 years. Although the water never completely dried up, it also never overflowed during this time. Answer the following question(s) based on the data. -Which statement explains the general upward trend of the data over the 2-year time period?

Environmentalism is ________.

An ecosystem is a collection of all the ________ in a given area.

The bird-rhino relationship is an example of ________.

The use of multiple forms of pest control including biological,chemical,and the planting of pest-resistant crops is a strategy commonly called ________.

Why is an estuary considered an intermediate biome?

The responsible management (use and conservation)of the earth's resources indefinitely is called ________.

The tick-rhino relationship is an example of ________.

Which of the following is not an example of an abiotic factor?

Which principle states that no two species competing for the exact same resources can coexist?

How might the removal of a wetland affect a nearby city?

Which is the dominant greenhouse gas leading to global warming?

If you put some water in a bucket and left it in your backyard, the water level would rise and fall over time with the weather. The table represents data collected from a bucket that was initially filled to the halfway mark with water. The water depth was measured on the first of the month for 2 years. Although the water never completely dried up, it also never overflowed during this time. Answer the following question(s) based on the data. -What is the most likely expectation during the third year?

Why do some nonnative species spread so quickly and inflict so much devastation when introduced to a new area?