Which is a function of the cardiovascular system?

Blood returning from the lungs enters:

A portal system involves:

The wall separating ventricles is the:

Answer the following question. Show the answers here. After uploading your exam, take the pictures of your work and upload them to Exam 1 Solutions, Extra Credit, and Partial Credit assignment. Your work must reflect the answer provided here. Calculate the free energy change in J/mole*K  of the following reaction.   Fe2O3(s)   + 3 CO(g)  => 2Fe(s)  + 3CO2(g)          Fe2O3(s)  CO(g) Fe(s)  CO2(g) ΔGo,kJ/mole    -742.2  -137.2 0.0  -394.4

Answer the following question. Show the answer here. After uploading your exam, take the pictures of your work and upload them to Exam 1 Solutions, Extra Credit, and Partial Credit assignment. Your work must reflect the answer provided here. A solution of 1.20 g of the covalent organic compound in 500.0 mL of benzene has an osmotic pressure of 33.53 mm Hg at 27oC. Estimate the molecular weight of the compound, in Da.

Answer the following questions. Show the answers here. After uploading your exam, take the pictures of your work and upload them to Exam 1 Solutions, Extra Credit, and Partial Credit assignment. Your work must reflect the answer provided here. An aqueous solution of calcium chloride contains 20.0% CaCl2 (MM=110.98 g/mol ) by mass. The density of the solution is 1.215 g/mL at 25o Calculate number of moles of CaCl2 in 100g of solution, molarity, molality, and mole fraction of the solution.  Assuming full dissociation of a salt, predict van ‘t Hoff factor and calculate freezing point depression in 0C and osmotic pressure in atm at 25.0oC for  1.5 molal concentration of the same salt.    Kf=-1.86 °C/m. The density of the solution is 1.115 g/mL at 25o

The lower pumping chambers of the heart are the:

How does the Fis protein function as an activator of the Hin site‑specific recombinase during DNA inversion?

During what stage of homologous recombination do D-loops form? During _____________________.