Scavengers and Parasites are two different types of organisms that obtain their food from other organisms. Here are the differences between them:

Scavengers:

- Scavengers are animals that feed on dead and decaying organic matter.
- They play an important role in the ecosystem by helping to clean up and recycle nutrients.
- Examples of scavengers include vultures, hyenas, and some types of beetles.
- Scavengers do not harm living organisms, but they feed on the remains of dead animals.

Parasites:

- Parasites are organisms that live on or inside other organisms, known as hosts, and obtain their food from them.
- They harm the host by taking nutrients from them, and in some cases, can cause disease or death.
- Examples of parasites include ticks, fleas, and tapeworms.
- Parasites can be classified as ectoparasites, which live on the surface of the host, or endoparasites, which live inside the host.

Explanation from NCERT Solution - Food: Where does it Come from??

- The NCERT Solution explains that food comes from various sources like plants and animals.
- Plants are the primary source of food for humans and animals as they produce their own food through photosynthesis.
- Animals, on the other hand, feed on other animals or plants to obtain their food.
- Animals that feed on other animals are known as carnivores, while animals that feed on plants are known as herbivores.
- Some animals, like humans, are omnivores and feed on both plants and animals.
- The NCERT Solution also explains the importance of a balanced diet that includes all the essential nutrients like carbohydrates, proteins, fats, vitamins, and minerals for a healthy body.

In conclusion, while scavengers feed on dead and decaying organic matter, parasites live on or inside other organisms and obtain their food from them, often causing harm to the host. The NCERT Solution explains the sources of food and the importance of a balanced diet for a healthy body.