Textbook - Chapter 13: Species Interactions

Question 1

Competition

Answer 1

Any interaction that is mutually detrimental to both participants, occurring between species that share limited resources

Question 2

Commensalism

Answer 2

Relationship between species that is beneficial to one, but neutral or of no benefit to the other

Question 3

Coevolution

Answer 3

Joint evolution of two or more non-interbreeding species that have a close ecological relationship; through reciprocal selective pressures, the evolution of one species in the relationship is partially dependent on the evolution of the other

Question 4

Ecological niche

Answer 4

The range of physical and chemical conditions under which a species can persist (survive and reproduce) and the array of essential resources it utilizes

Question 5

Fundamental niche

Answer 5

Total range of environmental conditions under which a species can survive and reproduce (also see ecological niche)

Question 6

Mutualism

Answer 6

Relationship between two species in which both benefit

Question 7

Predation

Answer 7

Relationship in which one living organism serves as a food source for another

Question 8

Parasitoidism

Answer 8

Relationship between insect larva that kills its host by consuming the host’s soft tissues before pupation or metamorphosis into an adult

Question 9

Parasitism

Answer 9

Relationship between two species in which one benefits while the other is harmed (although not usually killed directly).

Question 10

Realized niche

Answer 10

Portion of the fundamental niche that a species actually exploits as a result of interactions with other species