What is the ultimate source of energy in a food web?
Sun
Process 4
Condensation
Both organisms benefit
Mutualism
These make up populations and populations make up these. ( 2 Answers)
Species, Communities
A species that is not native to an ecosystem and causes harm
Invasive species
How much energy is transferred between trophic levels?
10%
What biological process takes carbon dioxide out of the atmosphere? What biological process puts it back?
Photosynthesis, respiration
One organism benefits, the other is unaffected
Commensalism
Disease in a population is an example of this kind of factor
Density- Dependent
A species that is critical to the stability of an ecosystem
Keystone species
A heterotroph that only consumes other animals
Carnivore
What organism is responsible for starting the nitrogen cycle?
One organism benefits and the other is harmed (not killed)
Parasitism
A pack of wolves shows what kind of dispersion?
Clumped
Nonliving factors in an ecosystem
Abiotic factors
What type of organism would be found on the second trophic level?
Herbivore
How have humans affected the phosphorous cycle? And how does this affect water sources?
Increased using fertilizers, eutrophication (Over supplying nutrients, which leads to an algal bloom)
Two populations with limited resources experience
Competition
Populations expanding rapidly have this kind of age structure
More children than elderly
This type of succession occurs after a volcanic eruption
Lichen colonize the area first, so they are known as..
Primary
Pioneer
The least abundant organism in this food web
Eagle
How do the nutrient cycles exhibit the law of "Conservation of mass"
Nutrients are constantly changing forms and shape, cycling through the biosphere, lithosphere, hydrosphere, atmosphere, and geosphere
Name the 3 types of symbiotic relationships and place the 2 symbols next to each one
Mutualism (+,+)
Commensalism (+,0)
Parasitism (+,-)
Where is exponential growth?
Where has it reached carrying capacity?
B, D
How have humans impacted climate change?
Increased CO2 in the atmosphere from burning fossil fuels
Deforestation
Pollution