3.5 Symbiosis Flashcards
(7 cards)
1
Q
What is symbiosis?
A
Co-evolved intimate relationships between members of two different species
2
Q
What are the two types of symbiotic relationships?
A
Parasitism and Mutualism
3
Q
What is parasitism?
A
A parasite benefits in terms of energy or nutrients, whereas it’s host is harmed by the loss of these resources
4
Q
Why can’t parasites survive out of contact with a host?
A
They often have a limited metabolism
5
Q
How are parasites transmitted to new hosts?
A
Using direct contact, resistant stages and vectors
6
Q
Why do some parasitic life cycles involve intermediate (secondary) hosts?
A
To allow them to complete their life cycle
7
Q
What is mutualism?
A
Both mutualistic partner species benefit in an interdependent relationship
