Around we go
Good Eats
Pyramid Schemes
Bountiful Biomes
Community
100

Precipitation, condensation and transpiration are all parts of this critical biological cycle.

Water Cycle

100

These organism produce their own food, primarily using energy from the Sun.

Producers

100

These diagrams show the amount of energy or matter at each trophic level in an ecosystem

Ecological pyramid

100

These zones receive the last amount of direct sunlight on the earth and are therefore the coldest biomes.

Polar Zones
100

This is the relationship when one organism eats another.

Predation

200

Carbon-dioxide in Earth's atmosphere traps heat from the sun in a process called this.

Greenhouse Effect

200

These handy organisms break down dead remains of other organisms.

Decomposers 

200

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%

200

This salty area is the earth's largest biome.

Marine biome 

200

When a non-native plant or animal is brought into a new ecosystem, it can become this and cause many problems.

Invasive Species

300

As part of the oxygen cycle, these organisms are responsible for the majority of photosynthesis on Earth.

Phytoplankton

300

A grasshopper eats plants, and is therefore this type of consumer.

Primary consumer

300

Scientist use these biomass pyramids to represent the actual dry mass of all organism in each trophic level of an ecosystem.

Biomass Pyramids

300

This tropical biome, found largely in Africa, has wet-dry seasons and warm temperatures year round.

Savanna

300

This type of competition occurs when members of the same species compete for some resource; like male deer fighting for a female.

Intraspecific Competition

400

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

400

A hawk, who eats mice and snakes, is this type of consumer.

Tertiary and/or Quaternary consumer

400

Pyramid of Numbers are based on this data.

Number of individual organisms

400

These areas, where the ocean meets a freshwater river or stream, teem with life.

Estuaries

400

This type of symbiosis occurs when one species benefits and the other is neither harmed nor benefits.

Commensalism

500

Unlike most cycles in biology, which move in gaseous form, this one is a solid, found in rocks and soil.

Phosphorus Cycle

500
This hungry little critter, a native to Oregon, eats plants, insects, frogs, and whatever else it can get its hands on, making it a primary, secondary, tertiary and quaternary consumer.

Racoon

500
These photosynthesisers are at the bottom level of a terrestrial ecosystem pyramid of numbers.

Grasses

500

This dark zone runs along the ocean floor is is home to many species of animals.

Benthic Zone

500

Population growth that is controlled by limited resources.

Logistic growth

M
e
n
u