APES unit 1

second level of the pyramid

1st consumers

This biome contains plants that are adapted to prevent water loss due to the low average rainfall and high temperatures year-round.

Desert

Which of the following statements is true of aquatic biomes?

Freshwater biomes are a vital source of drinking water

Where is the majority of freshwater found on Earth?

Ice caps and Glaciers

Which of the following best describes the net primary productivity of an ecosystem?

Net primary productivity is the amount of energy lost through respiration by producers subtracted from the gross primary productivity of an ecosystem

This biome is characterized by long dry seasons and is dominated by grasses, shrubs, and grazing animals.

Savanna

primary productivity

The net amount of energy that is stored by the main energy producers

Which of the following is the best explanation for why there is such a small amount of phosphorus that moves in aquatic systems?

There is not a gaseous phase of the phosphorus cycle, and therefore the movement of phosphorus into Oceanic reservoirs is very slow

Which of the following best explains why decomposers in soils and water are important to ecosystems?

They recycle nutrients

Carbon Sink

a forest, ocean, or other natural environment viewed in terms of its ability to absorb carbon dioxide from the atmosphere

Invasive Plant

alien species that show a tendency to spread out of control

Gross Primary Productivity

amount of carbon fixed during photosynthesis by all producers in the ecosystem

Secondary Consumers

an animal that eats primary consumers, blue crab, Lobster, sea star, humpback whale

Primary Consumers

an animal that eats primary producers, mussels, oysters, Krill, copepods, shrimp

Decomposers

an organism that decomposes organic material

Resource Partitioning

division of limited resources

Photosynthesis

convert the energy from the Sun into chemical energy for food

For a primary producer, the main function of photosynthesis is to manufacture?

glucose

Savanna

non-woody plants, tropical savannas

Bottom level of pyramid

producers

Niche

relationships between a species and the elements in its ecosystem

Producers

responsible for the production of organic compounds from atmospheric or aquatic carbon dioxide

third level of pyramid

secondary consumers

Hydrologic Cycle

the movement of water through the biosphere

gross primary productivity job

the total amount of solar energy captured by producers through photosynthesis overtime

This biome is warm and wet, with little seasonal variation in temperature and frequent precipitation.

tropical rainforest- biodiversity; warm and wet

10% rule of energy transfer

when energy is passed in an ecosystem from one trophic level to the next, only ten percent of the energy will be passed on

Which of the following diagrams correctly illustrates the nitrogen cycle?

you want N2 above ground on both sides