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T cells and B cells are important in:  

Your cows weigh 1300 lb and are offered a free choice brome round bale. You assume that each cow is consuming 3.0% of her BW/day on a DM basis.  In reference to the previous question, each round bale weighs 1300 lb (AF). How many round bales do you need to get your 20-cow herd through the winter (4 months, assume 30d/month)?

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The next 4 questions go together and use this same information. Your friend, Jim Halpert, needs to figure out the cheapest source of energy to feed his livestock. Please calculate the relative energy value of the following feeds and determine the least expensive option.   The oats cost $_______/mcal. Show and label your work on the file upload but just provide a numerical answer here, rounded to the nearest thousandth (3 decimals). Feed  Price/unit  Lb./unit  Mcal/lb.  Oats  $2.00/bushel  32 lb./bushel  1.32  Corn  $3.15/bushel  53 lb./bushel  1.54  Alfalfa  $200/ton  2000lb/ton  1.38 

Glucagon has the opposite effect of:  

Match the accessory digestive organ with its function.

Match the description with the appropriate organ in the bird.

The receptor cells in the retina are the:

A lymphocyte is a:  

The valve between the left atrium and ventricle is the: