atmosphere
fossil deposits
the ocean
plant and animal bodies
Carbon dioxide is taken directly into plant cells.
Carbon dioxide is first converted into usable compounds by soil-dwelling bacteria.
Carbon dioxide is inhaled by animals during respiration.
All of the above.
True or False:
Through the process of photosynthesis, carbon dioxide is broken down,
and the carbon atoms are used to build sugars and other macromolecules.
True
False
Herbivores and carnivores acquire carbon directly from the atmosphere during respiration.
Both herbivores and carnivores must eat plants to acquire carbon.
Herbivores acquire carbon by eating plants; carnivores acquire carbon by eating other animals.
All of the above.
Organisms break the carbon-carbon bonds in food to release energy and exhale the carbon dioxide that is created in the process.
The organic remains of organisms accumulate in the ground and are gradually transformed into coal, oil, and natural gas.
All of the above.
It decreases the amount of carbon available to plants.
It causes yearly cycles of ups and downs in carbon dioxide levels.
It causes overall increases in the amount of carbon dioxide in the atmosphere.
All of the above.
atmosphere
soil
rocks
the ocean
plant and animal bodies
Nitrogen gas is taken directly into plant cells during photosynthesis.
Nitrogen gas is converted into usable compounds by soil-dwelling bacteria.
Nitrogen gas is inhaled by animals during respiration.
All of the above.
The compounds are taken up directly by plants from the soil.
The compounds are ingested by animals when they eat soil and soil-dwelling bacteria.
The compounds are recycled back to the atmosphere without ever entering the food chain.
All of the above.
They use them to build lipids.
They use them to build proteins.
They use them to build carbohydrates.
They use them to perform photosynthesis.
All of the above.
Herbivores acquire nitrogen by eating plants; carnivores acquire nitrogen by eating other animals.
Both herbivores and carnivores must eat plants to acquire nitrogen.
Both herbivores and carnivores ingest small amounts of soil to obtain the nitrogen compounds created by soil-dwelling bacteria.
All of the above.
They break them down and then use them to build carbohydrates.
They break them down and then use them to build their own lipids.
They break them down and then use them to build their own proteins.
They break them down and then use them to perform cellular respiration.
All of the above.
Plants die, and the nitrogen in their tissues is converted back into nitrogen gas by soil bacteria.
Nitrogen compounds in animal waste products are broken down and converted back into nitrogen gas by soil bacteria.
Animals die, and the nitrogen in their tissues is converted back into nitrogen gas by soil bacteria.
All of the above.
atmosphere
soil and rocks
the ocean
plant and animal bodies
Phosphates in the soil are first converted into phosphorus by soil-dwelling bacteria.
Phosphates in the soil are absorbed by plant roots.
Phosphates are absorbed by animals during burrowing or ingestion of soil.
All of the above.
They use the phosphorus to build carbohydrates.
They use the phosphorus to build lipids.
They use the phosphorus to build proteins.
They use the phosphorus to build ATP and nucleic acids.
They use the phosphorus to perform photosynthesis.
Herbivores acquire phosphorus by eating plants; carnivores acquire phosphorus by eating other animals.
Both herbivores and carnivores must eat plants to acquire phosphorus.
Both herbivores and carnivores ingest small amounts of soil to obtain the phosphates contained within the soil.
All of the above.
They use it to build carbohydrates.
They use it to build lipids.
They use it to build proteins.
They use it to build nucleic acids and ATP.
All of the above.
Phosphate returns to the soil when dead plants are broken down by bacteria and other decomposers.
Phosphate returns to the soil when dead animals are broken down by bacteria and other decomposers.
Phosphorus is gradually released into the soil as rock is slowly weathered.
All of the above.