FRQS for unit 1 and 2 test

frq2) c.if you measure the available biomass for a patch of first as 10kg C/m2 per year, and the amount of co2 given off the atmosphere as 5 kg C/m2 per year, what is the gpp?

10 kg c/m2 + 5 kg c/m2 = 15g c/m2 per year

frq3) b I. explain how atmospheric carbon is incorporated into two oceanic sinks

can be taken by organisms like photo plankton for photosynthesis and carbon can also be taken up by marine organisms and used for shells skeletons and coral. atmospheric co2 can be dissolved directly into ocean water.

frq2) a. distinguish between gross primary productivity and net primary productivity

gpp- the rate at which an ecosystems producers capture and store a given amount of chemical energy as biomass in a given length of time. total gain of energy or biomass per unit area per unit time fixed by photosynthesis in green plants npp- the rate at which all plants produce net useful chemical energy, refers to net productivity that is converted to organic matter excluding the energy utilized for desperation by the producers. gain in biomass or energy per unit of time after allowing for respiratory loss.

frq1) a. state a hypothesis

i predict that product x is toxic to minnow health and there would be an increased survivorship of minnows if product x was decreased

frq1) e. describe the experimental results that would lead you to reject your hypothesis in part a

if it resulted in all the fish surviving despite the exposure of product x

frq3) c. discuss two other human activities that increase the concentration of carbon in the atmosphere

-deforestation -cutting down of trees that results in carbon being released back into the atmosphere through the process of decay. - biomass burning that releases carbon

frq 3) e II. one reason phosphorous are needed for organisms

it is necessary for the formation of dna and rna

frq3) d. identify an environmental problem that results from elevated atmospheric carbon concentrations

melting of glaciers that results n flooding and habitat loss

frq2) b. explain how net primary productivity affects the number of consumers in an ecosystem and on earth.

npp affects the number of consumers in an ecosystem and on earth because npp measures how fast producers can provide biomass needed by consumers in an ecosystem.

frq3) e I. describe one major way in which the phosphorous cycle differs from the carbon cycle

phosphorous has no atmospheric phase

frq3) a I. the atmosphere is an important carbon reservoir , describe a biological process by which carbon is removed from the atmosphere and converted to organic molecules

photosynthesis- plants take in carbon dioxide from atmosphere and convert it into glucose and then the plants fix carbon into glucose

frq 3) a II. describe a biological process by wish carbon is converted from organic molecules to a gas and returned to the atmosphere

respiration- glucose is broken down and releases co2 into the atmosphere. animals then digest the food and produce gases such as methane that can be emitted either through belching. then decomposition of organic carbon into gases such as methane

frq3) b II. identity one terrestrial sink, other than fossil fuels that stores carbon for thousands to millions of years

sedimentary rock is a type of fossil that stores carbon for thousands of years

frq1) c.identify the control

the group unexposed to product x

frq1) d. identify dependent variable

the health of the minnows

frq2) e. what acts on all levels of any diagram of energy and plays an important role in an ecosystem by recycling nutrients back into the environment?

the sun helps producers survive through photosynthesis . the sun recycles nutrients back into the environment by helping decomposers remove the last energy from the remains of organisms and then cycling back to the producers

frq1) b. describe the method you would use to test your hypothesis

three minnows in three fish bowls , each the same temperature. One bowl unexposed to product x, one bowl slightly exposed to product sand one fully exposed to product x. then note how the minnows behave every ten minutes

frq2) d. describe how a pyramid of energy illustrates the flow of energy

as you move through an ecosystem, the amount of energy in each trophic level decreases. each level degrade 10% from the previous level