Vocabulary
Food chains, webs & trophic pyramids
Open vs. Closed systems
Earth Cycles
100
a model that shows feeding relationships between organisms in an ecosystem
Food WEB
100
In the following food chain, which will have a indirect effect on snake populations?
BEETLES
100
What type of system is earth?
CLOSED system
100
Where does the carbon, nitrogen and carbon cycle get the energy to transform matter?
The SUN
200
an interaction in a food web where one population directly affects the abundance of another
DIRECT effect
200
What happens to 90% of energy & matter when a consumer eats another organism?
Is lost as HEAT, WASTE, OR CARBON DIOXIDE (CO2)
200
Where does earth get it's energy and matter from?
ENERGY:
MATTER:
Energy -> SUN
Matter -> All matter on earth, STAYS on earth
200
Which organisms play a key role in the nitrogen cycle?
BACTERIA/ DECOMPOSERS
300
a kind of consumer that uses the wastes or dead remains of other organisms as a source of energy and matter
DECOMPOSER
300
Which # represents the decomposer in the following food chain?
2
300
What type of system is a boiling pot of water?
OPEN
300
As water molecules move through the different stages of the water cycle over millions of years, what has happened to the amount of water on Earth?
The amount of water has STAYED THE SAME
400
a model that shows how much energy is transferred from one stage to the next in a food chain
TROPHIC PYRAMID
400
What type of consumer is the deer mouse?
PRIMARY & SECONDARY
400
What CAN enter and leave a closed system, such as a terrarium?
LIGHT/ ENERGY
400
During which stage of the carbon cycle is carbon added back to the atmosphere?
Either:
- GEOLOGICAL ACTIVITY
- HUMAN INFLUENCE
- RESPIRATION
500
The process of using energy from the sun and matter from the environment to produce molecules that store energy in chemical bonds
PHOTOSYNTHESIS
500
How many food chains is the beetle a part of?
4
500
When measuring the mass of the matter in a closed system, such as a terrarium, what should you notice?
Mass BEFORE: 24 kgs
Mass AFTER: ___ kgs
Mass STAYS THE SAME
Mass AFTER = 24 kgs
500
Humans have added excessive carbon dioxide to our atmosphere by burning fossil fuels. What is the BEST solution to minimize the amount of CO2 in Earth's atmosphere?
Add more producers/ trees
REFORESTATION