A form of water, such as rain, snow, or sleet, that condenses from the atmosphere, becomes too heavy to remain suspended, and falls to the Earth's surface.
What is precipitation?
100
A cold, treeless, usually lowland area of far northern regions.
What is a tundra?
100
A relationship between two organisms where one is helped and the other is unaffected.
What is commensalism?
100
An area of low-lying wetland in which the level of water is generally shallow and often fluctuating.
What is a marsh?
100
The Four Steps
Evaporation
Condensation
Precipitation
Runoff
What is the water cycle?
200
The evolution of two or more interdependent species, each adapting to changes in the other.
What is co evolution?
200
A large, dry, barren region, usually having sandy or rocky soil and little or no vegetation.
What is a desert?
200
A relationship that benefits two organisms
What is mutualism?
200
A low-lying area of land that is saturated with moisture, especially when regarded as the natural habitat of wildlife.
What is a wetland?
200
The Five Steps
Nitrogen fixation
Nitrification
Assimilation
Ammonification
Dentrification
What is the nitrogen cycle?
300
An animal that feeds chiefly on the flesh of other animals.
What is a carnivore?
300
A flat, grass-covered area of tropical or subtropical regions, nearly treeless in some places but generally having a mix of widely spaced trees and bushes
What is a savanna?
300
A relationship between two different organisms where the parasite harms the host.
What is parasitism?
300
An area of low-lying wet or seasonally flooded land, often having trees and dense shrubs or thickets.
What is a swamp?
300
CO2 Used by Plants for Photosynthesis
Consumption by Animals
Decay and Decompose
Formation of Fossil Fuels
Use of Fuels for Industrial Purposes
Carbon Emissions
What is the carbon cycle?
400
A group of organisms or populations living and interacting with one another in a particular environment.
What is a ecosystem
400
An area with great diverse wilderness and has almost 400 cm of precipitation.
What is a tropical rain forest?
400
Relationships or interactions between people or organisms which are mutually beneficial to both.
What is symbiosis?
400
The wide lower course of a river where it flows into the sea.
What is a estuary?
400
Greenhouse Effect and Global Warming
What are the effects of greenhouse gases?
500
Relating to life or living organisms.
What are biotic factors?
500
Many hyenas and leopards live in this grassland.
What is the savanna?
500
A bee drinks nectar and helps the flower pollinate.
What is mutualism?
500
Small Plankton and algae float on top of this sea in the Atlantic.