Succession
Energy Pyramid
Populations
Food Webs
Carbon Cycle
100
What is defined as the living things that first inhabit an area?
Pioneer Species
100
Where are the producers found on energy pyramid?
1st trophic level
100
How can a population decrease in size?
through death rate and emigration
100
What is this?
a food web
100
What mechanism is responsible for pulling Carbon dioxide down into the biosphere from the atmosphere
photosynthesis
200
What is it called when growth starts in a place without soil?
Primary Succession
200
which level of the energy pyramid has the most energy
the producer or 1st trophic level
200
What is made up of all the populations in an area?
Community
200
what would happen if a catastrophic event were to wipe out the grasses and trees in this food web
The food web would collapse
200
What mechanism do all living things utilize to release carbon dioxide back into the atmosphere
cellular respiration
300
What is sustainability?
the ability for an ecosystem to maintain balance
300
which level of an energy pyramid has the least energy
top level or quaternary consumer
300
What is the largest number of individuals that an ecosystem can support called?
Carrying Capacity
300
Explain what would happen if rabbits got sick and die to the food web
mountain lions and hawks would have to rely on other sources of food.
Those subsequent forces of food would decline
Grasses may overpopulate as a result of rabbits dying
300
in the carbon cycle what is the direct influence that humans have with industrialism
the release of carbon from fossil fuels
400
When does secondary succession occur?
After a natural disaster has occurred to destroy a place that had previously had soil and plants
400
How much energy is transferred from one trophic level to another? Like from producer to consumer. How much is heat energy given off too?
10 %, 90 % not transferred to the next level
400
Name some of the the things that keep a population down and under an adequate number for the ecosystem?
Limiting Factors (number of food, water, space, sunlight) and Competition
400
draw a food chain with a caterpillar, hawk, oak tree, and a treecreeper (small bird)
400
how does carbon enter into the geosphere from the biosphere
through death and decomposition
500
What is the community of plants that are relatively stable and undisturbed because they have reached their stage of succession?
Climax Community
500
What happens to the 90% of energy lost as you go up the pyramid
It goes out as heat and waste and to the decomposers
500
What happens to a population if it arises above the carrying capacity
There will be an overshoot and a sharp decline (deaths) until equilibium is reached
500
why are fungi an important part of an ecosystem even though often not present on a food web
break down dead organisms and recycle nutrients.
500
The rain forests of the world trap a large amount of carbon dioxide, a greenhouse gas. Every year, however, more rain forest is cut down and burned, releasing huge amounts of carbon dioxide. What is the result of these actions
temperatures may increase