The bottom layer of the energy pyramid.
Producers/autotrophs/plants
These species are the most important species in their ecosystem. Many others depend on them. EX: Beavers
Keystone Species
This Type of succession begins on bare rock
Primary Succession
Invasive species are a problem because they often harm or out compete these species.
Native Species.
The only planet in our solar system that has a breathable atmosphere.
Earth, duh!
The amount of energy that moves up to the next level of the energy pyramid.
10%
The definition of biodiversity
the variety of life in an ecosystem
After a forest fire, this type of succession would take place.
Secondary Succession
This gas, released by burning fossil fuels, contributes to global warming.
What is carbon dioxide (CO₂)?
The only other thing in our solar system that humans have set foot on besides earth.
The moon
These animals consume producers
Primary Consumers / Herbivores
Food, water, shelter, space and predation are examples of this. They control the population level of a species.
Limiting factors
Pioneer Species
This process involves cutting down large areas of forest, often for agriculture or development.
What is deforestation?
Like an asteroid but made of rock and ice. Can be seen from Earth. They have a tail.
Comets!
There are very few of these consumers because there is not much energy available for them.
Tertiary Consumers / Top predators
When a population stops rising and hits a stable equilibrium.
Carrying capacity
This is an example of a natural disaster that would require Primary Succession to recover.
Volcano, glacial retreats and earthquakes. (Floods or tsunamis could sometimes cause it too.)
Invasive species often thrive in new environments because they lack these. Their population grows quickly.
Natural predators
Jupiter and Saturn are two examples of this type of big planet. They don't really have a surface you could stand on.
Gas giant
These consumers could fit into more than one trophic level, usually level 2 or 3.
Omnivores
An organisim's "job" in an ecosystem.
Niche
This is the last stage of succession. Ex: In a desert community, large cactus grow well, other plants thrive as well. The plant community is stable. Pioneer species have long died out.
What is a Climax Community.
Seals and sea turtles are affected by this type of pollution because they use the moon to navigate at night.
Light pollution
Pluto used to be considered a planet, but now it's called one of these, with a similar name. (Hint: sounds like it's a short planet)
Dwarf Planet