An intimate relationship between different species in which at least one organism depends on the relationship.
400
Where does the Nitrogen cycle mostly take place?
It takes place mostly underground.
500
What is a symbiotic relationship?
What is exists between organisms of two different species that live toghter in direct contact
500
What are the steps of the oxygen cycle?
1.Plants release oxygen into the atmosphere.
2.Animals take in the oxygen and break down sugars and food.
3.Carbon dioxide is released by animals and used by plants and oxygen is between the atmosphere an the ocean.
500
What is the difference between a producer and a consumer?How do they relate to each other?
A producer makes food by photosynthesis and a consumer eats producers and other animals.They relate to each other by the producer making food for the consumer to eat.
500
What is an example of a parasitic relationship?
A tick and a deer.
A flea and a dog.
500
What are three things nitrogen come from?
1.Thunder,or lightning.
2.Industrial production
3.Bacteria