Biological position of viruses: Viruses lack a cytoplasmic membrane and they do not have the basic component of a cell. They can only replicate inside the host cell. Outside the host cell, they are non-living.
The yearling program was, however, more variable with a maximum profit of $356 per head compared with $206 for calf fed, and a maximum loss of $171 per head compared with $152 for the calf fed program.
The eight heifer calves sold Sunday averaged $650 per head, compared to $506 per head at last year's stock-show sale. Average weight this year was 511 pounds, for an average price of $1.27 per pound. The six bull calves sold for an average of $1,283, up from $986 in 2007.