The dollar value of terrrestrial ecosystems annually (estimate).
What is trillions of dollars... or more accurately, all the money you can imagine?
100
How does nitrogen get back into the ecosystem from a dead organism?
What is it is absorbed by bacteria which transfer it to the roots of plants?
100
The level with the most energy on any diagram of trophic levels.
What is the first level, the level of the producers?
100
The definition of abiotic factors.
What are any factors about the environment that are not organic (i.e. water, rocks, soil, air)?
100
The relationship between photosynthesis and respiration?
What is: they are opposites?
200
The process by which life spreads to an area that did not previously support life.
What is primary succession?
200
How is carbon moved into the air in the carbon cycle?
What is cellular respiration and combustion?
200
On a graph of moose and wolves, the relationship of the wolf graph to the moose graph.
What is it would lag behind?
200
The definition of carrying capacity.
What is the number of organisms who can live in equilibrium in a certain area?
200
The relationship between two animals who need the same food to survive.
What is competition?
300
The reason why biodiversity is important to an ecosystem.
What is because everything is interdependent: that to weaken the thread anywhere is to weaken the fabric everywhere?
300
A tree sapling weighs 1 kg. 20 years later, it weighs 4000 tons. The place where the mass came from.
What is the CO2 in the air?
300
The amount of energy (%age) that moves up the trophic pyramid.
What is about 10%
300
A term that means: "the ability of eco systems to endure, to remain strong and productive over long periods of time."
What is sustainability?
300
The relationship between two animals when one benefits at the cost of the other?
What is parasitism?
400
The 3 ways human beings tried to contain an invasive species:
What is:
a) chemical control (pesiticides?)
b) mechanical control (physical barriers/embargoes)
c) biological control (introduce a predator)?
400
The four main steps in the water cycle.
What is: evaporation, condensation, precipitation, and runoff?
400
What will happen to the 2nd tier of a trophic pyramid if the 3rd tier experiences a catastrophe (disease, habitat destruction).
What is it will rapidly grow?
400
The definition of biodiversity.
What is the rich variety of life that lives in an area?
400
The relationship between the sun, consumers, and producers?
What is the sun provides energy, the producers convert energy, and the consumers absorb energy?
500
The four ways human beings try to "clean up" oil when it spills from a tanker or a drilling rig.
What is:
a) using dispersants?
b) vacuuming/skimming to remove the oil from the surface
c) burning the oil
d) bioremediation: using microorganisms to eat the oil (slow, we're working on speeding it up)?
500
The reason why we do not run out of energy, water, and carbon in our ecosystems?
What is that each goes through a cycle in which the products are recycled and made available again?
500
The number of consumers vs. the number of producers:
compare 3 things:
number of organisms
amount of energy
amount of mass
What is:
a) irrelevant
b) producers have more than consumers
c) producers have more than consumers?
500
The definition the hydrosphere.
What is the water on Earth: solid, liquid, and gas?
500
The difference between an endangered and an extirpated species.
What is: both are in imminent danger of going extinct; but an extirpated species no longer lives in the wild?