Ecosystems
Name the three types of symbiosis
Mutualism, commensalism, parasitism
Bonus: what do each describe?
These organisms fix nitrogen into nitrate
Bacteria
largest cause of extinction today?
habitat loss
The process of returning a mined region back to its original state
reclamation
What would happen if there was no Carbon dioxide?
the earth would be too cold (photosynthesis could also not occur)
regular movement of individuals or populations each year during certain seasons
migration
Name the two most basic needs for all organisms
Energy and matter
Organisms that are introduced to a new habitats, have no natural predators, increase competition, and are resistant to local disease.
invasive, exotic, or non-native species
What are the four ways in which waste material can be hazardous?
toxic, chemically active, corrosive, flammable
What kind of organisms exist at the 3rd trophic levels, and what do they eat for food?
secondary consumers eat primary consumers
Provide an example of interspecific competition.
Anything with two different species competeting
most precipitation falls....?
in the ocean
How does increased biodiversity impact the stability of an ecosystem?
increases the stability
10 Joules of energy are used to process a particular resource for use. This resource will allow for 50 Joules of energy to be available. What is the net energy ratio?
50:10, 50/10, or 5, 5:1
Bonus:
Is this net gain or net loss?
A sapling begins to grow in the cracks between exposed rock after a landslide. This is an example of a pioneer species in what kind of succession?
primary
What kind of survivorship curve would demonstrate a population of muskrats that have about 15 young at a time. The parents are involved at first, but only partially.
Draw on the board
Decomposers return nitrogen to the soil in what form?
ammonia
What are the three measures of life's diversity?
genetic diversity, ecological diversity, and species diveristy
Name an example of a nonrenewable resource?
ore, fossil fuels, coal, natural gas, uranium, petroleum, nuclear energy, oil
the process of extracting ore that involves roasting the rock and causing it to separate into layers
smelting
Bonus:
Name the other two process and summarize how they work
Two species cannot occupy the same niche in the same area for very long
competitive exclusion principle
what element is essential for all organic compounds?
carbon
Name two reasons the human death rate has begun to fall.
Advances in science and technology
cleaner water
improved farming techniques
What is the largest environmental issue caused by chemical runoff?
algal blooms causing dead zones
Name three facts about K-selected species
exist in stable environments
impacted by density-dependent factors
usually type 1 survivorship curve