Ecology Review

Phosphorus enters living plants through

Nitrogen fixation can occur by

Which biome has four well-defined seasons and is composed of broad-leaved, deciduous trees?

Permafrost is characteristic of which biome?

In which biome would you find a polar bear?

The _____ is a dense evergreen/coniferous forest that has short summers and long winters.

In a pyramid of ___, each level represents the amount of energy available to that trophic level

_____ is a chemical substance that an organism must obtain from its environment to survive

Which of the following organisms would not be found in the grassland?

Which of the following is considered an autotroph?

The average weather conditions affecting a biome is called ____.

A ____ is a complex model that shows many interconnected food chains in an ecosystem.

All of the following are processes of in the water cycle EXCEPT

Which biogeochemical cycle is least dependent on biotic processes?

Nitrogen gas is found in the atmosphere. What is one way that it enters plants?

A ___ is a group of ecosystems that share the same climate and have similar communities

What type of heterotroph best describes a snake who only eats mice?

Rocks, temperature, and water are considered ______ factors.

Living organisms need freshwater, but it only constitutes roughly ____ of all water on Earth.

Carbon dioxide is added to the atmosphere through all of the following processes EXCEPT

Which of these levels of organization includes all the other levels?

Which land biome has the greatest amout of rain fall?

Which is an example of an abiotic element changing an area?

A producer is an autotrophic organism.

Converting nitrogen from a gas to a usable form by bacteria is called _____.

One food web arrow goes from a prairie dog to a coyote, showing that

Plants return liquid water to the atmosphere through a process called ____.

Which biome has a distinct wet and dry season?

A (an) ____ collects energy from sunlight or inorganic substances to produce food.

A ____ has grasses and scattered trees, and is located in Africa, South America, and Australia

A pod of whales would be an example of which level of organization?

Which would be an abiotic factor for a tree in the forest?

Which biome is the driest biome and only has 2-26 cm of rainfall per year?

Which of the following is one of the three major climate zones?

Which of the following processes plays an important role in the phosphorus cycle?

The most abundant element in the atmosphere is ____.

A decomposer gets energy from_________.

A _____ is a simple model that shows how energy flows through an ecosystem.

______ is the condition of the atmosphere at a specific place and time.

After one species disappears, the other species in the ecosystem