Ecosystems & Interactions
What is the difference between biotic and abiotic factors within an ecosystem?
Abiotic: Non-living
Biotic: Living
What is turbidity?
The amount of sediment suspended in a body of water.
What are the reactants and products of photosynthesis?
carbon dioxide & water --> glucose & oxygen
What is the equation for Net Primary Productivity?
GPP-R=NPP
Give an example of a producer.
(ANY PLANT)
Two relationship between two male lions fighting over a mate is an example of what?
Intraspecific Competition
What biome do we live in?
Temperate Seasonal Forest
Which gas is MOST abundant in our atmosphere and WHAT FORM is it in? (chemical formula)
N2 (nitrogen gas)
What are the reactants and products of respiration?
oxygen & glucose --> carbon dioxide & water
Give an example of a primary consumer.
(ANY HERBIVORE) must eat plants only
What is temporal partitioning?
Organisms using the same resource at different times of the day to reduce competition.
How does flowing water affect dissolved oxygen levels in a river?
Flowing water INCREASES dissolved oxygen levels
In the carbon cycle, what is the most long-term carbon sink?
Fossil Fuels like gas, oil, and petroleum
Which process in the water cycle happens when water flows through permeable rock beneath Earth's surface?
Infiltration
What is a heterotroph?
Any type of consumer. Carnivore, Omnivore, Herbivore.
What are the three types of symbiotic relationships and what do they mean?
Mutualism (+, +) , Commensalism (+, 0 ), & Parasitism ( +, -)
Which biome has the highest biodiversity and which biome has the lowest?
Tropical Rainforest (highest) & Tundra (lowest)
What is eutrophication and what TWO nutrients cause this to occur.
The decrease in oxygen in a body of water due to algal blooms caused by a surplus of nitrogen or phosphorus in the water. Usually caused by agricultural runoff.
What are the three most and least productive biomes?
Highest: Swamps & Marshes, Tropical Rainforest, Coral Reef
Lowest: Desert, Tundra, Open Ocean
Explain the 10% rule. Explain how much energy is transferred and what happens to the rest.
As you move up trophic levels, only 10% of energy is transferred. The other 90% is used up for bodily functions or lost as heat.
What is it called when the bodies of organisms evolve differently in order to use different resources and reduce competition
Morphological Partitioning
Explain how the tropical rainforest biome is moving due to the effects of climate change.
Further North and South from the equator.
What is nitrogen fixation and what two things can complete this process?
Converting nitrogen from atmospshere into a useable form for plants.
Bacteria & Lighting.
What is the definition of primary productivity? Include general units.
The rate of photosynthesis in a given area over a period of time. Energy/area/time
Where do the arrows in a food chain or food web point AND what do they represent?
The flow of energy. (goes from producer and points up toward next trophic level)