Across
- 2. forms from the remains of plants that lived in swamps hundreds of millions of years ago
- 4. is an organism from which a parasite takes food and shelter
- 7. is the accumulation of pollutants at successive levels of the food chain
- 8. is the amount of a harmful substance to which a person is exposed
- 9. is the damage to health that results from exposure to a given dose
- 10. is an intermediate host that transfers a pathogen or a parasite to another organism
Down
- 1. is a disorder of nutrition that results when a person does not consume enough of each of the nutrients
- 3. is the widespread malnutrition and starvation in an area due to a shortage of food
- 5. is a pollutant that is put directly into the atmosphere by human or natural activity
- 6. is water that contains wastes from homes or industry