5 Written questions
5 Matching questions
- secondary succession
- ecological succession
- a An interaction between species in which one species, the predator, eats the other, the prey
- b Transition in the species composition of a biological community, often following ecological disturbance of the community; the establishment of a biological community in an area virtually barren of life
- c A symbiotic relationship in which both participants benefit
- d A type of succession that occurs where an existing community has been cleared by some disturbance that leaves the soil intact
- e A mathematical measure of how the total number of individuals in an area are divided among the number of species in an area. In even communities, most species have about the same number of individuals present, where in uneven communities almost all individuals present belong to one species.
5 Multiple choice questions
- All of the variety of life; usually refers to the variety of species that make up a community; concerns both species richness (the total number of different species) and the relative abundance of the different species
- A symbiotic relationship in which the symbiont (parasite) benefits at the expense of the host by living either within the host (as an endoparasite) or outside the host (as an ectoparasite)
- consumption of plants
- The concept that when populations of two similar species compete for the same limited resources, one population will use the resources more efficiently and have a reproductive advantage that will eventually lead to the elimination of the other population
- The division of environmental resources by coexisting species such that the niche of each species differs by one or more significant factors from the niches of all coexisting species
5 True/False questions
mimicry → A defense where one species is selected to look like another species which has an effective defense.
niche → The "job" a species plays in a community, e.g. small seed consumer, top predator.
primary succession → A type of succession that occurs where an existing community has been cleared by some disturbance that leaves the soil intact
commensalism → A symbiotic relationship in which both participants benefit
symbiotic relationships → An ecological relationship between organisms of two different species that live together in direct contact