Ecology 2

Question 1

Mutualism

Answer 1

Both species benefit

Question 2

Commensalism

Answer 2

One species benefits the other is unaffected

Question 3

Parasitism

Answer 3

One species benefits the other is harmed

Question 4

Neutralism

Answer 4

Neither organism is affected

Least common

Question 5

Intra specific competition

Answer 5

Occurs among organisms belonging to the same species

Question 6

Inter specific competition

Answer 6

Occurs between organisms from different species like prey / predator

Question 7

Resource partitioning

Answer 7

Species consume slightly different foods or use other resources in slightly different ways (develop niches )

Ex: anolis lizard sp. perching site

Question 8

Character displacement

Answer 8

Sympatric species tend to diverse in those characteristics that overlap

Ex: darwins beak size on. The galalpagos islands

Question 9

Predator / prey

Answer 9

Competitive, can’t live above food source prey controls predators #’s

Question 10

Aposematic coloration

Answer 10

Stay away color

Question 11

Batesian mimicry

Answer 11

Copy cat only 1 bad

Question 12

Mullerian mimicry

Answer 12

2 poisonous resemble one another

Question 13

Camouflage

Answer 13

Blend in

Question 14

Disruptive coloring

Answer 14

Obscures size or shape of organisms body

Question 15

How can we measure the outcomes of characteristics and behaviors leading to increased survival?

Answer 15

Survivorship curve

Question 16

Survivorship curve

Answer 16

Plot #’s that are still alive at each age

Question 17

Survivorship curve type 1

Answer 17

Death more likely at old age

Question 18

Survivorship curve type 2

Answer 18

Death equally likely at all ages

Question 19

Survivorship curve type 3

Answer 19

Death more likely at young age

Question 20

Symbiosis

Answer 20

2 unrelated organisms living close together