Streptococcus pneumoniae, or pneumococcus, is a Gram-positive, alpha-hemolytic, aerotolerant anaerobic member of the genus Streptococcus.
Organic Chemistry Functional Groups Cheat Sheet - print this guide for a handy reference to the common groups you will come across during IUPAC naming and advanced reactions:
The Biologian: Virus Evolution Website also has cool videos to watch on topic
cross-section of a tree, cellular level -royalty-free stock image from dreamstime.com -chosen because of the intricacy of the pattern of nature that creates something as solid as a tree
The Aids Virus. Enlarge: pinterest.com/pin/287386019942747849 Толкова красив, а толкова коварен..
Pneumonia bacteria (Streptococcus pneumoniae) (imaged using a scanning electron microscope [SEM])
Volvox with daughter colonies
Microbiologie evolutive epidemiologie.jpg
Influenza Virus, Tem