Precipitation, condensation and transpiration are all parts of this critical biological cycle.
Water Cycle
These organism produce their own food, primarily using energy from the Sun.
Producers
These diagrams show the amount of energy or matter at each trophic level in an ecosystem
Ecological pyramid
These zones receive the last amount of direct sunlight on the earth and are therefore the coldest biomes.
This is the relationship when one organism eats another.
Predation
Carbon-dioxide in Earth's atmosphere traps heat from the sun in a process called this.
Greenhouse Effect
These handy organisms break down dead remains of other organisms.
Decomposers
An energy pyramid shows that only this amount of energy is available to organisms on each subsequent trophic level as you move up the pyramid.
10%
This salty area is the earth's largest biome.
Marine biome
When a non-native plant or animal is brought into a new ecosystem, it can become this and cause many problems.
Invasive Species
As part of the oxygen cycle, these organisms are responsible for the majority of photosynthesis on Earth.
Phytoplankton
A grasshopper eats plants, and is therefore this type of consumer.
Primary consumer
Scientist use these biomass pyramids to represent the actual dry mass of all organism in each trophic level of an ecosystem.
Biomass Pyramids
This tropical biome, found largely in Africa, has wet-dry seasons and warm temperatures year round.
Savanna
This type of competition occurs when members of the same species compete for some resource; like male deer fighting for a female.
Intraspecific Competition
This gas, the most plentiful found in Earth's atmosphere requires bacteria to alter it in order for other organisms to make use of it.
Nitrogen
A hawk, who eats mice and snakes, is this type of consumer.
Tertiary and/or Quaternary consumer
Pyramid of Numbers are based on this data.
Number of individual organisms
These areas, where the ocean meets a freshwater river or stream, teem with life.
Estuaries
This type of symbiosis occurs when one species benefits and the other is neither harmed nor benefits.
Commensalism
Unlike most cycles in biology, which move in gaseous form, this one is a solid, found in rocks and soil.
Phosphorus Cycle
Racoon
Grasses
This dark zone runs along the ocean floor is is home to many species of animals.
Benthic Zone
Population growth that is controlled by limited resources.
Logistic growth