G. Ledyard Stebbins
George Ledyard Stebbins, Jr. (January 6 1906 – January 19 2000 ) was an American botanist and geneticist who is widely regarded as one of the leading evolutionary biologists and botanists of the 20th century. Stebbins received his Ph.D. in botany from Harvard Uni more
Verbascum thapsus
Verbascum thapsus (; Great Mullein or Common Mullein) is a species of mullein native to Europe , northern Africa and Asia , and introduced in the Americas and Australia .
It is a hairy biennial plant that can grow to 2 m or more tall. Its small yellow flowers are dens more
Barbara McClintock
Barbara McClintock (June 16 , 1902 – September 2 , 1992 ) was a pioneering American scientist and one of the world's most distinguished cytogeneticists . McClintock received her Ph.D. in botany from Cornell University in 1927, where she was a leader in the development more
Tuberculosis
Tuberculosis (abbreviated as TB for tubercle bacillus or Tuberculosis) is a common and deadly infectious disease caused by mycobacteria , mainly Mycobacterium tuberculosis . Tuberculosis most commonly attacks the lungs (as pulmonary TB) but can also affect the central nervous syst more
Black pepper
Black pepper (Piper nigrum) is a flowering vine in the family Piperaceae , cultivated for its fruit , which is usually dried and used as a spice and seasoning . The same fruit is also used to produce white pepper, red/pink pepper, and green pepper. Black pepper is native to South more