Sulfa drugs like bactrim, given for bacterial infections, inhibit bacteria by blocking folic acid synthesis. the precursor molecule of folic acid is para-amino benzoic acid (paba). interestingly, paba has a structure very similar to a sulfa drug. if a sulfa drug is present, the bacterial enzyme will bind the sulfa drug because of structural similarity. this is an example of:

Dwarf galaxies are select one: a. relatively rare. b. not very bright c. mostly spiral shaped. d. none of these.

Listed in the item bank are some key terms and expressions associated with the categories seen in the venn diagram. to find out more information about items, some have more details available when you click on them. drag and drop each item onto the proper area of the diagram. if an item describes more than one category, be sure to place it in the overlapping space. viruses are tiny infectious pathogens that cause many different diseases, such as polio, and the flu. though they are similar to one celled organisms in some ways, in many ways they are very different. use the venn diagram below to show the similarities and differences between viruses and living organisms.

Solutions to environmental problems in europe must