Question

Define pathogen and parasite

Answer 1

Answer:

Pathogens: Pathogens are the organisms that are known as the infectious agent because these organisms are harmful to other organisms like plants and animals. Pathogens may be are of the five types:

1. Bacteria

2. Fungi

3. Virus

4. Nematode

5. Protozoa

Parasites: Parasites are the infectious organisms that take their nutrition from the host body. Parasites can be alive untill the host is alive. They are two types; endoparasites and ectoparasites.

Answer 2

Pathogens and Parasite:

Explanation:

• Pathogens are microscopic and infectious organisms that are responsible for causing disease in other organisms. They derive their nutrition from other organisms or utilise other organisms for carrying out their life cycle.
• Parasites are organisms that enter into an antagonastic relationship with other organisms called the Host, from which it derives its benefit, in form of food or shelter and harms the host by depleting its food and other resources. They may not cause any disease in the host.