Any form of life
Group of the same species located in the same area.
Populations of living organisms interacting with one another.
Group of organisms interacting with living and nonliving things
Geographic region of Earth that is inhabited by a community of plant and animal species
Layer of soil, water, and air that sustains life
The living parts of an ecosystem
The nonliving parts of an ecosystem
Trophic means energy
Produce their own energy.
Eat producers (1st degree consumer
Eats 1st degree consumers (2nd degree consumers)
Eats 2nd degree consumers (3rd degree consumers)
Biodiversity is the variety of organisms in a geographic area that provides us, as humans, with essential natural resources like food, fibers for clothing, and medicine.
Population growth is the increase of a species in an area
A wide spread disease in the 1400's that was the largest decrease in human population ever recorded
Main cause of the worlds population in the 1800's
Advancements from this time period include: agricultural revolution, food production, medicine advances, sanitation advances, and nutrition advances
Exponential Growth is a rapid growth or a constant growth rate (J-curve)
The capacity to endure
When the growth rate goes up and down as time passes
The change in population over time
Biodiversity hot spots are biogeographic regions with a significant reservoir of biodiversity that is under threat from humans and are mostly found in the tropics by the equator.
Shows what an ecosystem looks like; whole bunch of food chains
Ecological Succession is a series of enviromental changes
Growth of plants and animals in a place with no enviroment
Events that cause this type include growth of the side of a volcano and a landslide
Growth of plants and animals after something destroys life
Events that cause this type include a fire and deforestation
The first species to move into an area
Example: Lichen or moss
A climax community begins to form at the final stage of succession
Example: Grasses in prairies of cacti in deserts
The conditions of the enviroment that limit the growth of a species
Examples: water, energy, shelter, sunlight, predators, food, minerals, nutrients, competition, disease, etc.
The number of individuals of a species that an ecosystem can support
Limiting factors control the amount of species in an ecosystem and keeps them at finite capacity, or carrying capacity
Water pollution is the contamination of water, by sewage effluent, fertilizer runoff, industrial chemical discharge etc
Pollution that comes from a single source
Ex: Factory or waste water treatement plant
A large amount of water pollution that does not come from a single point, but from many different sources
Ex: Fertilizer, pesticides, pet waste, motor oil, household hazardous wastes, and/or driving a car
Any geological formation containing water, especially one that supplies water for wells and springs. It is similar to an underground river.