A yard is mostly grass with no herbivores. On May 1, you measure that the average above-ground biomass density in 20 plots is 10 grams Carbon per meter squared. You wait until May 15 and you do NOT mow the lawn. On May 15, you study the 20 plots and find that there has been net primary productivity equal to about 15 grams Carbon per meter squared. You know that the NPP is less than the GPP, due to respiration. In your plots, organisms performed cellular respiration that accounts for the difference between NPP and GPP. Which organisms performed this cellular respiration

the energy generated by an individual's metabolism is calculated in met (metabolic equivalent of task). the met is the ratio of the work metabolic rate to the resting metabolic rate. one met is illustrated as 1 kcal per kilogram per hour, and is probably equal to the energy cost of sitting quietly.

1 met is equal to 1.162 watt per kg

1 kg is equal to 1000 grams

as the person weighs 80000 gm, that is, 80 kg.

therefore, 80*1.162 = 92.96

thus, the person expends 92.96 watts of power while at rest.

answer an inhibitory neurotransmitter in the brain;

reflection is the bouncing back of a propagating wave when it encounters a barrier; usually shows an image of the source of light wave

1) bounces back from an opaque material

2) bounces back from the boundary

3) seen in mirrors

refraction is the bending of a propagating wave having a shift of direction as it passes through different media; usually seen in lenses to magnify or lessen

1) passes through a prism

2) moves from one medium to another

3) seen in lenses