You then measure polly's internal temperature to be 13°c, which is quite a drop from the normal human body temperature of 37°c. and weighing polly, you find her mass to be 60 kg. now, subtracting the heat warming the water from the surrounding environment, we assume polly gave up only 5000 kj of thermal energy to warm the bath. with these numbers, determine polly's specific heat in units j/(kg°

Using the expression to find the Heat exchange energy, we can find the required value for the Poly's specific heat in its respectively units. Matematically this can be expressed as,

Where,

m = Mass

= Specific heat

= Change in temperature

Q = Heat change

Re-arrange to find the specific heat we have that

Therefore the Polly's specific heat is

bacteria that live on the ocean floor are sustained by phytoplankton. phytoplankton, microscopic marine photosynthetic organisms, have a vastly significant role to play not only in the marine food web of which they’re part of, but also on a more global scale. despite their infinitely small size in comparison to other marine organisms, these tiny creatures occupy an immensely important ecological niche: they are the foundation of the marine food web, and as primary producers, play key roles in supporting all other organisms in the marine environment, as well as in the regulation of the earth’s climate through the sequestration of carbon, oxygen production, and other related processes. phytoplankton account for roughly half of all global primary productivity; therefore, their significance extends far beyond the marine environment alone. there is an intriguing sense of irony in the realization that these tiny living beings that often live out their existence unnoticed and undetected by the rest of the world, have such a far-reaching impact on the lives of virtually all other living organisms on the planet, particularly on those in the marine environment. the world that we have become accustomed to has been and is continuously shaped by the workings of these miniscule yet vital “plants of the sea”.

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