Show:
Ecosystems
Trophic Levels
Populations
Nutrient Cycles
Human Impact
100
What does Biotic mean?
What is a living, or previously living organism.
100
What is the lowest trophic level? (Be specific)
What is Autotroph
100
Definition of population
What is group of organisms of the same species in the same place at the same time
100
What effect are humans having on the long term carbon cycle?
What is combustion leads to warming and marine acidification.
100
Name the three main impacts humans have on the ecosystem
What is habitat destruction, disruption of the carbon cycle, and overuse of resources
200
What is an ecosystem?
What is all living and non-living organisms in an area.
200
What is the difference between a food web and a food chain?
A food web is very simple with few levels, whereas a food web can get very complex.
200
Define a carrying capacity
What is the total population that can be surrounded by resources in a given ecosystem
200
What are the four major nutrient cycles?
What is Water, Carbon, Nitrogen, Phosphorous
200
Name an effect of overuse of resources
What is starvation, dehydration, loss of energy form, or overcrowding
300
Name two abiotic factors.
What is Nutrients, Water, Soil, and Air
300
What is at the top of the energy pyramid?
What is WRONG -300 FOR YOUR GROUP (Jk Decomposers)
300
what term best describes the following senario??!??!?!!?! bird species prey on mice then another bird immigrates that eats mice as well. lol
What is competitive exculsion
300
What process in the carbon cycle draws CO2 out of the air?
What is photosynthesis
300
How do humans disrupt the long-term carbon cycle?
What is burning fossil fuels
400
Which organism does not benefit in parasitism?
What is Host.
400
Explain why food chains do not usually exceed 3 to 4 levels.
Higher trophic levels have less energy and, therefore, can support fewer organisms.
400
name 4 if the 6 factors that influence the popultaion size
What is birth rate, death rate, immigration, emigration, growth rate, resource availibility
400
What organisms in the soil transform N2 into Ammonium and Nitrates?
What is Nitrogen-fixing bacteria
400
Name two organisms that would thrive if all the humans suddenly disappeared?
What is domesticated cats, tress, birds, mosquitoes
500
What is commensalism?
What is a relationship in which one species benefits and the other is not effected.
500
Explain why the same area can support a greater number of herbivores than carnivores.
There are more autotrophs than there are consumers, because of renewable resources.
500
every square mile there are 10 tigers in the rain forest. name the form of population density please
What is constant
500
describe the short term and long term Carbon cycles
What is short term- cell respiration > atmosphere > photosynthesis Long term- fossil fuels > combustion > soil > oceans
500
Why are baboons believed to be the next "humans"?
What is They have the largest brains of any other primates, and they have adapted to living in other habitats