3.5 symbiosis Flashcards
Symbiosis definition
Any interaction between two different species.
Types of symbiosis
Parasitism and mutualism
What does the type of symbiosis depend on
Who is benefitted by the relationship.
Parasitism definition
Where one organism, the parasite, benefits from the relationship with another organism, called the host, and the host is harmed by the relationship.
What does parasitism illustrate
Dependence
What does mutualism illustrate
Interdependence
How is the host negatively affected in parasitism
The host is harmed or loses energy and nutrients
Parasites disadvantage
They can’t survive without the host due to extremely limited metabolism.
Types of parasite transmission
Direct contact
Release of resistant stages
Vectors
Direct contact
Where a parasite is passed from organism to organism through physically touching or contacting each other.
Release of resistant stages
Where a parasite can survive adverse conditions away from their host for a limited period of time, until they find a new host.
Vector
Where the parasite carries a disease and transports it to the host. This disease can go from host to host as well.
Parasitic lifecycles
Direct and indirect
Direct lifecycles
Where eggs are shed onto a new member of the host species.
Indirect lifecycle
Where a parasite sexually reproduces on a primary host species and then travels to a secondary host species to allow the immature parasites to grow.
