1. Food web? 2.Habitat 3.Omnivore 4.Primary consumer 5. Producer 6. Secondary consumer
If the organism has no natural predators then that organism can start to overpopulate the habitat and use up valuable resources that other organisms, who DO have natural predators, need to survive and repopulate.
Answer:
improper disposal of sewage
Circulatory and Respiratory systems working together to provide body with oxygen.
Human Immunodeficiency Virus -- this is HIV, the virus that causes AIDS.
Flu viruses. There are lots of different strains of flu virus, which is why new vaccines have to be made every year.
Cold virus. The common cold is caused by a virus.
