Post on 22-Dec-2015
Table of Contents
Living Things and the Environment
Populations
Interactions Among Living Things
Changes in Communities
Populations and Communities
Living Things and the Environment
Factors in a Prairie HabitatA prairie dog interacts with many biotic and abiotic factors in the prairie habitat.
Biotic and Abiotic FactorsSalt is an abiotic factor found in some environments. To see how the amount of salt affects the hatching of brine shrimp eggs, varying amounts of salt were added to four different 500-mL beakers.
Living Things and the Environment
Ecological OrganizationThe smallest level of organization is the organism. The largest is the entire ecosystem.
Living Things and the Environment
Population SizeUsing the data table, create a double bar graph showing alligator births and deaths for four years.
Populations
Changes in a Rabbit PopulationThis graph shows how the size of a rabbit population changed over ten years.
Populations
Population Density of the Flamingos in the PondIn the pond on the top, there are 10 flamingos in 8 square meters. The population density is 1.25 flamingos per square meter.
Populations
Relate Cause and EffectAs you read about the four factors that can limit populations, think about cause and effect.
Populations
Saguaro CommunityLook for examples of how organisms interact in this scene.
Interactions Among Living Things
NichesOrganisms occupy many niches in an environment.
Interactions Among Living Things
Predator-Prey InteractionsOn Isle Royale, an island in Lake Superior, the populations of wolves (the predator) and moose (the prey) rise and fall in cycles.
Interactions Among Living Things
List the names of the parasites and the hosts.
Interactions Among Living Things
Primary SuccessionPrimary succession occurs in an area where no soil and no organisms exist.
Changes in Communities
Secondary SuccessionSecondary succession occurs following a disturbance to an ecosystem, such as clearing a forest for farmland.
Changes in Communities
Comparison of Primary and Secondary SuccessionBased on the information given, what facts would complete this table?
Changes in Communities