A population is a group of ___________?

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Envi. Sci chap. 3/4

Intro to Enviromental Sustanablity chapter 3 and 4 test questions

Question	Answer
The fossil record clearly shows that ________.	All Species evolved from Pre-Existing Species.
Two examples of Symbiotic Relationships are ____?	Mutualism and parasitism.
____ captures solar energy and uses photosynthesis to produce sugars?	Producers.
A population is a group of ___________?	Individuals of a single species that live and interact in one area.
Environmentally and economically acceptable means of controlling invasive species include?	Public education, Introduction of suitable predators and extermination of imported goods.
___ is most likely to be a keystone species in an ecosystem?	Large bodied, higher level consumers
When an increase in the population of prey occurs, what happens to the population of the predator?	The population of the predator increases.
Global climate change may produce major shifts in biomes for any given location because ___?	Mean temperature, precipitation and salinity will change.
High Population density can increase _____?	Increases the incidence of disease transmission and food scarcity.
Various types of ___ pollinate 73% of our crops?	Bees.
What is the proper hierarchy for ecological organization? (smallest to broadest)	Organism, population, community, ecosystem, biosphere
Microbes in our digestive tract that help us digest food demonstrate a(n) _____ association?	Symbiotic.
True or false- Species on earth today are but a fraction of all species that have ever lived?	True
True or false- Ecotourism combines wildlife conservation with economic benefits?	True
The Everglades Restoration plan in Florida will do ____?	Will restore natural levels of water flow by undoing numerous damming and drainage projects.
What terrestrial biome has the most biodiversity?	Tropical rainforest.
The carrying capacity is the ____?	Maximum sustainable population that a given environment can support
Endemic Species are found ____?	On only one place on the planet.
Many moths, beetles and flies closely resemble bees and wasps but cannot sting. this practice is called _____?	Mimicry
Groups of organisms with low biotic potential, that produce at most one offspring every other year are ____?	K Selected species
Decomposers and detritivores are responsible for enhancing the ____ by recycling nutrients?	Soil
Extinction is a(n) _____ process; Human Activity can affect the ____ at which extinction occurs.	Natural; Rate
An excellent example of selective or artifical breeding by humans is ____?	The diversity of dog breeds in the world today.
Population lacking any enviromental resistance tend to increase by ____?	Exponential growth
When multiple organisms seek the same limited resource, each participant exerts a negative effect on the other participants by taking resources that the others could have used. this type of relationship is called ___?	Competition.

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