Predation and parasitism both involve the other organism getting captured. The difference is that predation is when the other organism gets eaten and parasitism is when the organism gets harmed. Why organisms fight?
The parasite obtains food and shelter from the host. Parasitism mode of life ensures food lodging and meals. PREDATION (+/-) is a a relationship between a Predator and a Prey in which the predator is a free living organism which catches and kills another species for food. They do not get shelter from prey.
By looking at the biological bases of human behavior, psychologists are better able to understand how the brain and physiological processes might influence the way people think, act, and feel.
In fact, sound waves travel over 17 times faster through steel than through air. Sound waves travel over four times faster in water than it would in air
