A total of 51 sponges (Porifera) and 13 ascidians (Chordata) were collected on the coast of the Yucatan Peninsula (Mexico) and extracted with organic solvents. The resulting extracts were screened for antibacterial activity against four multidrug-resistant (MDR) bacterial pathogens: the Gram-negative Acinetobacter baumannii. Klebsiella pneumoniae. and Pseudomonas aeruginosa and the Gr... https://danddcollectiblers.shop/product-category/jewelry-box/