• It was Filippo Pacini who first discovered the cholera-causing germs.
• He was an Italian Anatomist who became famous for separating cholera bacterium Vibrio cholerae in 1854.

In Japan the hormone gibberellin was discovered. Gibberellin was first recognized in 1926 by a Japanese scientist-Eiichi Kurosawa, while studying aboutthe rice foolish seedling disease in which spindly seedlings are formed due to GA like compounds produced by the fungus (Gibberella fujikuroi) infecting the plant. By Teijiro Yabuta and Sumuki, it was first isolated in 1935, from fungal strain (Gibberella fujikuroi) provided by Kurosawa.

Thyroxin is not a plant hormone instead it is a hormone secreted in thyroid gland of humans and is responsible for regulation of metabolism in the endocrine system.

Mosaicis a viral disease in which the leaves of Tobacco get shrank and become small. The Chlorophyll of leaves gets destroyed. The factor of this disease is Tobacco Mosaic Virus (TMV). It can be controlled by burning affected plants.

• Triticum aestivum is an allohexaploid.
• Allohexaploid with six sets of chromosomes: two sets from each of three different species).
• Of the six sets of chromosomes, two come from Triticum urartu and two from Aegilops speltoides and two sets of chromosomes came from wild goat-grass Aegilops tauschii.

Sea anemones belongs to the phylum Cnidaria. Owing to being cnidarians, sea anemones are related to corals, jellyfish, tube-dwelling anemones, and Hydra and is a single polyp attached to a hard surface by its base. Some species of sea anemones live in soft sediment and a few float near the surface of the water.

Somatostatin is a peptide hormone that regulates the endocrine system and affects neurotransmission and cell proliferation via interaction with G protein-coupled somatostatin receptors and inhibition of the release of numerous secondary hormones.

• Somatostatin inhibits insulin and glucagon secretion

Bacteriophage refers to any of a group of viruses that infect bacteria.

Bacteriophages were discovered independently by Fredrick W. Twort in Great Britain (1915) and Felix D’HJerelle in France (1917). D’Herelle coined the term bacteriophage, meaning ‘bacteria eater’.

A vitamin is an organic compound and a vital nutrient that an organism requires in limited amounts An organic chemical compound (or related set of compounds) is called a vitamin when the organism cannot synthesize the compound in sufficient quantities, and it must be obtained through the diet; thus, the term "vitamin" is conditional upon the circumstances and the particular organism. For example, ascorbic acid (one form of vitamin C) is a vitamin for humans, but not for most other animal organisms. Supplementation is important for the treatment of certain health problems, but there is little evidence of nutritional benefit when used by otherwise healthy people

Blood performs many important functions within the body:-

* Supply of nutrients and oxygen

* Regulation of core body temperature

* Hydraulic functions

* Removal of waste such as carbon dioxide, urea, and lactic acid