7 Which two body systems pictured above interact with each other to break down and transport the nutrients found in food?
OA. the digestive system and the nervous system
B. the nervous system and the respiratory system
OC. the respiratory system and the cardiovascular system
OD. the cardiovascular system and the digestive system
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the answer is c

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metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)

answer; 4 electrons;

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.