Show:
Evolution
Speciation
Community Ecology
Population Ecology
Population Growth
100
The processes that have transformed life on earth from its earliest forms to the vast diversity that characterizes it today.
What is evolution.
100
This is induced when the ancestral population becomes separated by a geographical barrier.
What is Allopatric Speciation?
100
1.The concept that two species cannot continue to occupy the same environmental habitat. 2.They would compete for the same limited resources. 3.One species will use the resources more efficiently and have a reproductive advantage that will eventually lead to elimination of the other species.
What is the Competitive Exclusion Principle?
100
Changes in population size and the factors that regulate populations over time
What is Population Dynamics?
100
when the birth rate equals death rate
What is ZPG (Zero Population Growth)?
200
Individuals with favorable traits are more likely to leave more offspring better suited for their environment.
What is Natural Selection?
200
The emergence of numerous species from a common ancestor introduced to new and diverse environments.
What is Adaptive Radiation?
200
the use of Camouflage, Aposematic, and Mimicry
How do some organisms avoid becoming prey?
200
The number of individuals per unit area volume.
What is Population Density?
200
1. Improved health 2. Technology 3. Decreased death rates
What are the reasons for the increase in human population?
300
The concept that the shuffling of genes that occur during sexual reproduction, by itself, cannot change the overall genetic makeup of a population.
What is the Hardy-Weinberg Principle?
300
The result of a radical change in the genome that produces a reproductively isolated sub-population within the parent population
What is Sympatric Speciation?
300
A species that maintains species diversity in a community.
What is a keystone species?
300
A rapid increase in a population followed by a sharp decline.
What is a Boom and Bust cycle?
300
It is the proportions of individuals of a population in different age groups.
What is the Age Structure?
400
Genetic drift resulting from the colonization of a new location by a small number of individuals.
What is the Founder effect?
400
Species from different evolutionary branches may come to resemble one another if they live in very similar environments. **Daily Double** Give an example of Convergent Evolution.
What is Convergent Evolution? 1.Ostrich (Africa) and Emu (Australia). 2.Sidewinder (Mojave Desert) and Horned Viper (Middle East Desert)
400
The different feeding relationships that determine the route of energy flow and the pattern of chemical cycling.
What is Trophic Structure?
400
The distribution of individuals within geographical population boundaries.
What is Dispersion?
400
it is the increased proportion of women of childbearing age in the population.
What is population momentum?
500
A mode of action of Natural selection that favors variants of opposite extremes.
What is Diversifying Selection?
500
An interpretation of speciation that says evolution occurs in spurts of relatively rapid change.
What is Punctuated Equilibrium?
500
Heterotrophs that get their nutrition by breaking down the organic compounds found in waste organic matter and dead organisms. **DAILY DOUBLE*** What is an example of a detrivore?
What are Decomposers and Detrivores? millipedes, woodlice, dung flies, slugs, many terrestrial worms, sea stars, sea cucumbers, fiddler crabs
500
Population-limiting factors whose effects depend on population density.
What Density-Dependent Factors that limit population growth?
500
the fraction of individuals in a given age interval that survive to the next interval
What is survivorship?