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Chemistry
Population
Ecosystems
Species
Evolution
100
Consists of protons, neutrons, electrons.
What is an atom?
100
The average number of years a newborn can expect to live.
What is life expectancy?
100
A species that makes its own food (bottom of the food chain).
What is a producer?
100
A group of individuals of the same species that live in the same place.
What is a population?
100
The changes in Earth's life over time.
What is evolution?
200
It is a measure of the acidity of a solution.
What is the pH scale?
200
The number of children that die before the age of 1 per 1000 people in a population.
What is infant mortality rate?
200
Soil, water, temperature are all examples of this type of factor.
What is an abiotic factor?
200
A group of populations of different species living in a particular area.
What is a community?
200
Survival of the fittest is this type of selection.
What is natural selection?
300
The number of protons in an atom.
What is the atomic number?
300
Children are important for labor and the cost of raising and educating them will affect this.
What is birth rate?
300
A tapeworm living in human intestines is an example of this type of relationship.
What is parasitism?
300
This type of species typically has few offspring and no maternal care for offspring.
What is an r selected species?
300
A farmer breeds only his or her best lifestock is this type of selection.
What is artificial selection?
400
The number of protons plus the number of neutrons.
What is the atomic mass?
400
A population age structure graph where the base of the graph is smaller than the middle of the graph will show this type of growth.
What is negative growth?
400
The term for land, water, and air on Earth and all their organisms.
What is biosphere?
400
Term for a species that is introduced into an ecosystem accidentally or on purpose.
What is an invasive or nonnative species?
400
Term used for a species that still has abundant numbers in nature but its numbers are rapidly declining.
What is a threatened species?
500
Atoms that contain the same number of protons but a different number of neutrons.
What is an isotope?
500
The maximum population of a species that can be sustained without being degraded.
What is carrying capacity?
500
An unfenced grassland that supports grazing and shrub eating animals.
What is a rangeland?
500
A species' way of life or role in an ecosystem.
What is an ecological niche?
500
This type of extinction occurs when so few members of a species exist that they no longer play a role in an ecosystem.
What is ecological extinction?