Final answer:
Parasitism, predation, and commensalism are all types of symbiotic relationships in biology. Parasitism involves one organism benefitting at the expense of another. Predation involves one organism hunting and consuming another. Commensalism involves one organism benefitting without causing harm to the other.
Step-by-step explanation:
In biology, parasitism, predation, and commensalism are all types of symbiotic relationships between organisms. They involve interactions between two different species.
Parasitism is a type of relationship where one organism (the parasite) benefits at the expense of another organism (the host), causing harm to the host. Examples of parasitism include ticks feeding on the blood of animals and tapeworms living in the intestines of their hosts.
Predation, on the other hand, is a relationship where one organism (the predator) hunts, kills, and consumes another organism (the prey) for sustenance. Examples of predation include lions hunting and eating zebras, and snakes capturing and eating mice.
Commensalism is a relationship where one organism benefits without causing harm or benefiting the other organism. An example of commensalism is the relationship between cattle egrets and livestock, where the egrets feed on insects stirred up by the livestock, without harming the livestock.
Learn more about Symbiotic relationships in biology