ECOLOGY- SW1-M

it cycles between the abiotic environment and organisms has five steps: 1)Nirogen Fixation, 2) Nitrification, 3) Assimilation, 4) Ammonification; and 5) Denitrification.

• Hydrologic Cycle

• Nitrogen Cycle

• Sulfur Cycle

• Carbon Cycle

The process by which nitrogen is converted from its inert atmospheric form into a usable form for plants is known as:

• Nitrogen Fixation

• Transpiration

• Photosynthesis

• Respiration

Which of the following steps in the nitrogen cycle involves the conversion of ammonia into nitrites and nitrates?

• Nitrogen Fixation

• Nitrification

• Ammonification

• Denitrification

In the nitrogen cycle, the process that returns nitrogen gas back to the atmosphere is called:

• Nitrification

• Denitrification

• Assimilation

• Ammonification

can be defined as the study of the relationship between organisms and their environment

• Ecology

• Aquatic

• System of Energy

• Pyramid of Energy

• Pyramid of Biomass

These components include the living organism such as plants, animals, bacteria, viruses, etc.

• Consumers

• Producers

• Abiotic

• Biotic

are organisms that must obtain food energy from secondary sources, for example, by eating plants or animal matter.

• Producers

• Primary Producers

• Consumers

• Detritivores

What term describes organisms that can produce their own food using sunlight or chemical energy?

• Consumers

• Detritivores

• Producers

• Decomposers

Which of the following is a key component of the carbon cycle that involves the uptake of carbon dioxide by plants?

• Respiration

• Photosynthesis

• Combustion

• Decomposition

both species benefit; as for example, the relationship between the sea anemone and clown fish.

• Commensalism

• Mutualism

• Predation

• Ammensalism