Interactions in communities vocab

Question 1

Competition

Answer 1

When individuals (from the same or different species) compete directly or indirectly for the same limited resources. Negatively affects all individuals involved and may harm their survival and/or reproduction.

Question 2

Predation

Answer 2

Involves one organism (the predator) that kills and eats another organism (the prey)

Question 3

scavengers

Answer 3

consume the remains of dead organisms

Question 4

Symbioses

Answer 4

Close, long-term associations between two or more species.

Question 5

Mutualism

Answer 5

Occurs when all species involved benefit from a symbiotic association.

Question 6

facultative mutualism

Answer 6

symbiotic association with another species but are not dependent on it

Question 7

obligate mutualism

Answer 7

survival is dependent on their symbiotic association with another species

Question 8

Commensalism

Answer 8

one species benefits from a symbiotic association while the other is neither harmed nor helped.

Question 9

Parasitism

Answer 9

when a species (the parasite) lives in or on another species (the host)

Question 10

Endoparasites

Answer 10

found within a host

Question 11

ectoparasites

Answer 11

found on the host’s body

Question 12

intraspecific interactions

Answer 12

interactions occur between individuals of the same species

Question 13

interspecific interactions

Answer 13

interactions occur between individuals of different species

Question 14

community structure

Answer 14

The occurrence and distribution of species in a community

Question 15

intraspecific competition

Answer 15

Individuals from the same species competing for the same resources

Question 16

interspecific competition

Answer 16

Individuals from different species competing for the same resources

Question 17

resource partitioning

Answer 17

Different species having different niches, which allows them to share resources in a community and avoid competition

Question 18

competitive exclusion principle

Answer 18

Different species cannot coexist in a community if they compete for all of the same resources.