This is the day to day condition of Earth’s atmosphere at a particular time and place.
What is weather?
100
Areas near the equator that receive direct or nearly direct sunlight year round are known as this.
What are the tropics?
100
A series of predictable changes that occurs in a community over time is known as this.
What is ecological succession?
100
The ability to survive and reproduce under different conditions than their optimum is known as this.
What is tolerance?
100
Planktonic animals that feed on phytoplankton are known as this.
What is zooplankton?
200
The average, year after year, conditions of temperature and precipitation in a particular region is known as this.
What is climate?
200
Biological influences on organisms within an ecosystem are called this.
What are biotic factors?
200
This refers to the colonization of land surfaces where no soil exists.
What is primary succession?
200
The climate in a small area that differs from the climate around it is known as this.
What is a microclimate?
200
The well lit upper layer of the ocean is known as this.
What is the photic zone?
300
The situation in which heat is retained in Earth’s atmosphere by gases such as methane, water vapor, and carbon dioxide is known as this.
What is the greenhouse effect?
300
Physical or nonliving factors that shape ecosystems are known as this.
What are abiotic factors?
300
The first species to populate a sterilized area is known as this.
What are pioneer species?
300
The depth, flow, temperature, and chemistry of overlying water determine these.
What are aquatic ecosystems?
300
The permanently dark zone of the ocean is known as this.
What is aphotic zone?
400
Cold areas of the Earth where the Sun’s rays strike Earth at a very low angle are known as this.
What are polar zones?
400
The area where an organisms lives is called this.
What is a habitat?
400
This type of change occurs following a disturbance of some kind in which an existing community is altered without removing the soil.
What is secondary succession?
400
The general term for the tiny, free-floating or weakly swimming organisms that live in both freshwater and salt water environments is this.
What is plankton?
400
The prominent horizontal banding of organisms that live in a particular aquatic habitat is known as this.
What is zonation?
500
Areas of the globe that sit between the polar and tropical zones are known as this.
What are temperate zones?
500
The full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions is known as this.
What is a niche?
500
A complex of terrestrial communities that covers a large area and is characterized by a certain soil, climate conditions, and assemblages of plants and animals is known as this.
What is a biome?
500
Single celled algae that are supported by nutrients in the water and form the base of many aquatic food webs are known as this.
What is aquatic food webs?
500
The tiny pieces of organic matter that provide food for organisms at the base of an estuaries food web is known as this.