Key Area 5 Flashcards
1
Q
What is symbiosis
A
Symbiosis describes the co-evolved intimate relationships between members of two different species.
2
Q
What are the two types of symbiosis
A
Parasitism
Mutualism
3
Q
What’s parasitism
A
In a parasitic relationship the parasite benefits in terms of energy or nutrients whereas the host is harmed by the loss of these resources.
4
Q
Features of parasitism
A
Parasites often have a limited metabolism and cannot survive outwith the host.
Parasites can be transmitted by direct contact, resistant stages and vectors
Some parasites require a secondary host in order for them to complete their lifecycle eg. Tapeworm.
5
Q
What is mutualism
A
In mutualism both partners benefit in an interdependent relationship.
