عالم وراثة أمريكي ، ولد عام 1928 ، حائز على جائزة نوبل في الطب ؛ لدوره في اكتشاف بنية المورثات DNA

Painting of Short-beaked echidna ( Tachyglossus aculeatus):It regularly eats ants and termites, therefore its nickname, the spiny anteater. It inhabits most of Australia and many nearby islands including Tasmania and New Guinea. They generally use their smell to locate food. Some scientists...

Painting of Asian elephant ( Elephas maximus): The species is found primarily in Bangladesh, India, Sri Lanka, Indochina and parts of Nepal and Indonesia (primarily Borneo), and Thailand. It is considered endangered.Asian Elephant usually lacks tusks..This species once roamed through much of the...

Vector generated image of A Scientist with a Chemical

Vector generated image of Electrophorus:An electrophorus is a capacitive generator used to produce electrostatic charge via the process of electrostatic induction. A first version of it was invented in 1762 by Swedish professor Johan Carl Wilcke, but Italian scientist Alessandro Volta improved...

Painting of Baikal seal ( Phoca sibirica),Known locally as the nerpa and referred to by some scientists as Pusa sibirica, the Baikal seal is found only in Russia's isolated Lake Baikal,The Baikal seal’s main food source is the golomyanka, found only in Lake Baikal. Baikal seals eat more than...

Painting of Square Bacteria:In 1980 they were discovered: square bacteria. The bacteria are the most numerous type of cell found in salt lakes and are believed to be responsible for their characteristic red colour. Unusually, they are perfectly square in shape, appearing like small tiles when...

Vector generated Image of Magdeburg Hemisphere:The Magdeburg hemispheres were a pair of large copper hemispheres with mating rims. When the rims were sealed with grease and the air was pumped out, the sphere contained a vacuum and could not be pulled apart by teams of horses. The Magdeburg...

Painting of The Black-head Female sheep that scientists removed the nuclei from its eggs during the method of cloning Dolly the sheep

Painting of The White-head adult Female sheep that scientists removed from mammary gland cells during the method of cloning Dolly the sheep

Painting of Edward Jenner (17 May 1749 – 26 January 1823) was an English scientist who studied his natural surroundings in Berkeley, Gloucestershire, England. Jenner is widely credited as the pioneer of smallpox vaccine, and is sometimes referred to as the 'Father of Immunology'....

Vector image of A scientist in the lab performing an experiment--A scientist is any person who engages in a systematic activity to acquire knowledge or an individual that engages in such practices and traditions that are linked to schools of thought or philosophy. In a more restricted sense,...

Vector image of Biologist--A biologist is a scientist devoted to and producing results in biology through the study of life. Typically biologists study organisms and their relationship to their environment. Biologists involved in basic research attempt to discover underlying mechanisms that...

Vector image of Geologist--A geologist is a scientist who studies the solid and liquid matter that constitutes the Earth and terrestrial planets. Geologists usually engage studying geology, and approach this using physics, chemistry and biology as well as other sciences.

Vector image of Chemist--A chemist is a scientist trained in the science of chemistry. Chemists study the composition of matter and its properties such as density, acidity, size and shape.

Saudi Explorers in the Antarctic - Discussion - English - 3rd Year Secondary - Term 2

Vector Generated Image of Chocolate:Chocolate contains alkaloids such as theobromine and phenethylamine, which have physiological effects on the body. It has been linked to serotonin levels in the brain. Scientists claim that chocolate, eaten in moderation, can lower blood pressure.Dark chocolate...

Vector Generated Image of Scientist or a researcher exposes plants to radiation.

Painting of James Dewey Watson, born April 6, 1928, in Chicago, Illinois, is an American molecular biologist, best known as one of the two co-discoverers of the structure of DNA, with Francis Crick in 1953. Watson, Francis Crick, and Maurice Wilkins were awarded the 1962 Nobel Prize in Physiology...

Painting of The scientist Francis Crick: He was a British molecular biologist, physicist, and neuroscientist, and most noted for being one of two co-discoverers of the structure of the DNA molecule in 1953, together with James D. Watson. He, James D. Watson and Maurice Wilkins were jointly...

Painting of Alfred Nobel (1833-1896) was a Swedish scientist. He is best known for the invention of dynamite (an explosive) and for founding the Nobel Prize awards. He left instructions in his will that his money should found the Nobel Prize. He decided to found the awards because someone had...

Painting of The scientist Beadle:George Wells Beadle (October 22, 1903 – June 9, 1989) was an American scientist in the field of genetics, and Nobel Prize in Physiology or Medicine Nobel laureate who with Edward Lawrie Tatum discovered the role of genes in regulating biochemical events within...

Painting of Edward Lawrie Tatum (December 14, 1909 – November 5, 1975) was an American geneticist. He shared half of the Nobel Prize in Physiology or Medicine in 1958 with George Wells Beadle for showing that genes control individual steps in metabolism. The other half of that year's award went...

Painting of Gregor Johann MENDELwas an American scientist in the field of genetics, and Nobel Prize in Physiology or Medicine Nobel laureate who with Edward Lawrie Tatum discovered the role of genes in regulating biochemical events within cells. Beadle and Tatum's key experiments involved...

Vector generated Image of Continental drift:The continental drift theory is the theory that once all the continents were joined in a super-continent, which scientists call Pangaea. Over a vast period of time, the continents drifted apart to their current locations. Alfred Wegener first supported...