Populations
Includes all of the living things and their physical environments within a particular area
Ecosystem
Streams, rivers, ponds, and lakes
Freshwater Ecosystems
A large naturally occurring area of land with largely evergreen forest vegetation found in northern sections of the Northern Hemisphere
Taiga
The gradual process by which something changes into a different form.
organisms of one species living in the same place at the same time
Population
The specific environment in which an organism lives
Habitat
land that stays wet year round; most diverse of fresh water(swamp marsh bog)
Wetland
A forest that is humid and rainy for much of a year
Rainforest
the process by which certain traits make it more possible for an organism to survive.
Natural Selection
all the populations that live in an area at the same time
Community
Relative number of organisms of each age group within population
Saltwater ecosystems (Estuary, Intertidal Zones, Neritic Zones, Open Ocean)
Marine Ecosystems
an area that gets little precipitation and has very little vegetation
desert
a group of a type of organisms or animals.
Species
a group of similar organisms whose members can mate with one another and produce fertile offspring
Species
Type of growth in which a population initial exponential growth almost always slows and stops due to limiting factors
River meets ocean/ saltwater meets freshwater(delta)
Estuary
a major ecological community such as grassland, tropical rainforest, or desert
Biome
the evolution by which new species are formed.
Speciation
an organism's particular role or how it fits into an ecosystem
Niche
Parts of an ecosystem that are living or used to be living
Biotic Factors
Where sea meets shore/ ocean hits the land
Seashore
a forest containing trees that lose their leaves each year
Deciduous Forest
the end of a species
Extinction
shows how the energy in food is passed from one organism to another in an ecosystem
Food chains