Which substances give strength to the cell wall? * A. Fats and Proteins B. Cellulose and Fats C. Lignin and Cellulose D. Lignin and Protein

Me the formula cacl2 represents the compound

Draw the farm's ppf for corn and beef. draw a point that shows an inefficient combination of corn and beef. label ita. draw a point that shows an unattainable combination of corn and beef. label itb. draw a point that shows an efficient combination of corn and beef. label itc.

2points what do bacteria have in common with the cells of other living organisms?