4. Symbiosis - Parasitic Relationships Flashcards
1
Q
What are symbiotic relationships?
A
Coevolved intimate relationships between members of two different species
2
Q
What is a parasite?
A
A symbiont that benefits in terms of energy or nutrients
3
Q
Why can many parasites not survive without a host?
A
Because parasite metabolisms is often limited
4
Q
What three things can transmission of parasites to new hosts be by?
A
Direct contact
resistant stages
vectors
5
Q
What have some parasitic lifestyles evolved to involve?
A
Secondary hosts
6
Q
What are two examples of parasites involving secondary hosts
A
Tapeworm and pig, plasmodium and human
