1.

Define the following terms and give two examples in each case.(a) Symbiosis(b) Parasitism(c) Predation

Answer»

(a) Symbiosis: It refers to relationships between organisms of different species that  show on intimate association with each other. Symbiotic relationships provide atleast  one of the participating species with a nutritional advantage.  Examples of Symbiosis Relationships are of Fungus and photosynthestic alga and  Microbes and cattle.  

(b) Parasitism: Parasitism is a type of symbiotic relationship between organisms of  different species where one organism, the parasite, benefits at the expense of the other,  the host. Examples of Parasitism are 4 tapeworms, flukes, the plasmodium species and  mosquitoes.  

(c) Predation: A predator is any consumer that kills and eats another living organism in  order to obtain energy. The organism being eaten is called the prey.  Examples are Lions, Deer, Wolves, Eagles.



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