5 Written questions
5 Matching questions
- resource partitioning
- a 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
- b A symbiotic relationship in which both participants benefit
- c 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
- d A defense where one species is selected to look like another species which has an effective defense.
- e The mutual influence on the evolution of two different species interacting with each other and reciprocally influencing each other's adaptations
5 Multiple choice questions
- Species that are not usually abundant in a community yet exert strong control on community structure by the nature of their ecological roles or niches
- A force that changes a biological community and usually removes organisms from it. Disturbances, such as fire and storms, play pivotal roles in structuring many biological communities
- 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.
- All the organisms that inhabit a particular area; an assemblage of populations of different species living close enough together for potential interaction
- An interaction between species in which one species, the predator, eats the other, the prey
5 True/False questions
parasitism → 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)
competitive exclusion → 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
primary succession → A type of ecological succession that occurs in a virtually lifeless area, where there were originally no organisms and where soil has not yet formed
symbiotic relationships → An ecological relationship between organisms of two different species that live together in direct contact
herbivory → A defense where one species is selected to look like another species which has an effective defense.