Exam 36: Ecosystems

A _________________ in a community is made up of the organisms feeding at the same number of steps away from the Sun.

Certain bacteria are capable of transforming atmospheric nitrogen into a form other organisms can use through a process known as:

Which of the following are decomposers?

All the deserts of the world occur at 65 ^$\circ$ latitude.

____________ is characterized by unusually warm ocean temperatures in the eastern Pacific.

In the annual cycle of a temperate lake,thermal stratification occurs when?

If forests are cut down,semiarid deserts could result.

Deserts that occur on the back sides of mountain ranges are due to an effect called a __________________.

A ___________ is a type of major land ecosystem determined mostly by the features of the climate in the area.Many are actually named for the dominant plants or lack of.

Plants obtain the carbon used in the manufacture of organic compounds from:

All of the different kinds of interacting organisms living within a certain area make up a:

A type of ecosystem characterized by bioluminescent creatures eating debris can be found:

Which of the following is NOT a component of the physical habitat in which organisms live?

It takes the Earth _______ to orbit around the Sun.

Why would few reptiles be found in the tundra?