It is called obligate (dependent) symbiosis when a species cannot independently exist without another.
parasite or predator
This is called parasitism.
This is called a predator-prey relationship.
A parasitic relationship is a symbiotic relationship in which one organism (parasite) benefits at the expense of another organism (host). The parasite harms the host while deriving nutrients or resources for its own survival and reproduction. Examples include tapeworms in the intestines of mammals and ticks on the skin of animals.
parasitism
Mutualism
A natural relationship in which one organism lives in or on another organism and benefits from the relationship while the other organism may be harmed is a parasitic relationship.
parasite or predator
It is parasitism
It is called Commensalism- a relationship in which one organism benefits from another organism but does not harm it
A one-way relationship where one species benefits at the expense of another is known as parasitism. In this relationship, the species that benefits is called the parasite, while the species that is harmed is known as the host.
parasitism.
This is called parasitism.
Parasitism is a relationship where one organism benefits at the expense of another, while commensalism is a relationship where one organism benefits without harming or benefiting the other.
Parasitism is a symbiotic relationship where one organism (parasite) benefits at the expense of another organism (host). The parasite derives nutrients or resources from the host, often causing harm or disease in the process. Examples include tapeworms in animals and mistletoe in trees.
A symbiotic relationship is when both species need each-other to survive, for example the lynx and the hare. Without the hare the lynx would starve and without the lynx the hare would overpopulate. A parasitic relationship is where one species benefits and one is damaged.
Parasitic relationship means that when one person benefits from the other person but the other person does not benefit.