this organisms helps recycle nutrients in the environment
What is a decomposer or detritovore
100
A place where fresh and salt water meet
What is an estuary
100
What is habitat degradation
What is pollution of air, water or land
200
An organism's job in an ecosystem is
What is a niche
200
All communities and abiotic factors would be called
What is an ecosystem
200
How much enegy is transfered to the next trophic level ? How much energy is lost?
What is 10% is transferred to the next trophic level. 90% is lost as heat
200
Clown fish are literally defenseless against predators, however they have evolved to live in extremely close proximity to a sea anenmone, the sea anenmome provides protection. What type of relationship is this
What is Commensalism
200
What pesticide was banned in the 1970's but we are still seeing the residual negative effects in our environment?
What is DDT
300
Portion of earth that supports life
What is a biosphere
300
Many ecosystems come together to form
What is the biosphere
300
General name for secondary and primary consumers?
What is heterotrophs
300
Decompostion occurs rapidly in this biome. Why?
What is Tropical Rain Forest. Due to the fact that it is wet, dark, humid ideal conditions for fungus and bacteria to decompose
300
Explain how eutrophication occurs
What is excess nutrients are added to the water, causes algal bloom, which kills plants and proliferates very quickly, eventually dies and decomposes and the bacteria consumes all of the oxygen in the water
400
Eats already dead organism
What is a scavenger
400
The levels of an ecosystem in order from the least amount of organsims to the most
What is organism, population, community, ecosystem, biosphere
400
Network of interconnected food chains?
What is a food web
400
Increase in the amount of nutrients in an aquatic ecosystem.
What is Eutrophication
400
This curve shows expontenial growth and this curve shows exponential growth followed by a leveling off period called the carryin capactiy. Which curve is normal for a population ?
What is J curve for exponential growth, S curve for exponential growth with the leveling off period. S curve is normal for a population since they all have limiting factors that prevent a population from increasing forever
500
Another name for a decomposer
What is a detritovore
500
What are organism that make their own food called, organism that eat these organisms called, what are organisms called that eat other animals?
What is an autotroph, primary consumer, secondary consumer
500
The 3 ways in which the transfer of energy is depicted?
What is a food chain, food web, energy pyramid
500
What are 5 adaptations that organisms have developed in order to survive in a desert ecosystem
What is escivating, being nocturnal, plants have horizontal root system, spines, waxy stems
500
This is the most abundant atmospheric gas? What percentage? How is it converted to a usuable form?
What is Nitrogen, 78%..Lightening and Bacteria help convert it to nitrates, the usuable form