Ecology 102 Answers

The principal characteristic that determines whether an aquatic ecosystem is classified as marine or freshwater is _______.

Only the water of marine ecosystems contains dissolved salt.

In general the warmest biomes in the world are found _______.

Biomes are unique and do not appear more than once on Earth.

Identify the biotic factor of an ecosystem from the following:

What distinguishes the savanna and grassland biomes?

Scientists use specific levels of organization in order to analyze the biosphere. The Everglades are a large area of subtropical wetlands found in Florida. A variety of plants and animals can be found in the Everglades, including Florida panthers, cypress trees, herons, and alligators. Photo by National Park Service Which level of organization is not seen in the Everglades?

The defining characteristic of deserts is their high daytime temperatures.

Which biome is prominent in North America?

Which of the following is not a freshwater ecosystem?

Freshwater ecosystems can be found within terrestrial ecosystems.

Environments are covered with manmade structures like roads, buildings, and sewers. Green spaces such as parks, backyards, and undeveloped lots are scattered in among the developed areas instead of all connected together. Plants and animals have to deal with exposure to toxins from vehicles and loss of habitat and food sources. These are all ways that _______.

Which ecosystem contains 32% of the world's producers?

Savanna is considered a transitional biome because it is intermediate between two _______.

Biomes are defined by specific characteristics. Photo by Nomadz What characteristics would define the biome shown?

The community is the lowest level of the biosphere’s organizational hierarchy to include members of different species.

The proper order, from smallest to largest, for the levels of organization is _______.

The biosphere is best described as the regions of Earth that support _______.

In which biome would you be most likely to enjoy leaves changing color in the fall?