populations Flashcards

1
Q

what does a bomb calorimetry do

A

measures the energy storage in biomass of something

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2
Q

what does a bomb calorimetry have for efficient use

A

contains direct oxygen supply
avoids incomplete combustion

contains air space
insulation

contains stirrer
equal energy distribution

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3
Q

how to calculate the percentage efficiency

A

energy of consumer over energy of producer

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4
Q

how can we find percentage efficiency of

A

(equation)

sample of producers and herbivores collected form the same area

measure biomass

energy content calculation of producer and herbivore using bomb calorimeter

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5
Q

reasons for less than 100% efficient food chain

A

light reflected
respiration
photosynthesis
light energy distribution
wrong wavelength

indigestible parts

excretion

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6
Q

what is an ecosystem

A

physical area including all organisms and their interactions with each other and their physical environment

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7
Q

what does it mean when we say an ecosystem is dynamic

A

smallest change can have a knock-on effect

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