What type of cell has no membrane-bound nucleus?

What kind of crystalline solid is graphite? o a. molecular solid b. metallic solid o c. network solid d. ionic solid

During an investigation of an xss attack, the investigator comes across the term "[a-za-z0-9\%]+" in analyzed evidence details. what is the expression used for?

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?