Symbiosis 3.5

Question 1

What is the definition of symbiosis?

Answer 1

Symbiosis — co-evolved intimate relationships between members of two different species.

Question 2

What are the two types of symbiotic relationships?

Answer 2

Types of symbiotic relationship—parasitism and mutualism.

Question 3

What happens in a parasitic relationship?

Answer 3

A parasite benefits in terms of energy or nutrients, whereas its host is harmed by the loss of these resources.

Question 4

What are qualities of a parasite?

Answer 4

Parasites often have limited metabolism and cannot survive out of contact with a host.

Question 5

What are methods of transmission of parasites to new hosts?

Answer 5

Transmission of parasites to new hosts using direct contact, resistant stages and vectors.

Question 6

What do intermediate hosts allow parasites to do?

Answer 6

Some parasitic life cycles involve
intermediate (secondary) hosts to allow them to complete their life cycle.

Question 7

What happens in a mutualistic relationship?

Answer 7

Both mutualistic partner species benefit in an interdependent relationship