Ecological Levels of Organisms and Earth's Subsystems Quiz

Population Ecology

• Multiple factors affect population size, including biotic and abiotic factors.
• The primary factor that determines if a population will increase in size is the availability of resources, such as food, water, and shelter.

Atmospheric Science

• The stratosphere is the layer of the atmosphere that contains the ozone layer, which protects against ultraviolet (UV) radiation from the sun.

Ecological Concepts

• The term "carrying capacity" refers to the maximum population that can be maintained for an indefinite time by a particular environment.
• Dominance competition is a type of competition where certain dominant individuals obtain an adequate supply of limited resources at the expense of others.

Population Dynamics

• Demography is the study of changes in population, focusing on how and why the numbers increase or decrease.

Ecological Levels

• An ecosystem consists of several different species interacting in a defined region.

Geology

• The lithosphere is the solid portion of the Earth, which includes the crust and mantle.
• The hydrosphere represents the liquid portion of the Earth, making up approximately 71% of the planet's surface.

Population Density

• Population density refers to the number of individuals of a species per unit of area or volume at a given time.