Inventors and Scientific Discoveries

J.B. Priestley (1894-1984) was indeed a renowned British author and playwright, famous for works like 'An Inspector Calls'. He was not a scientist from France, Germany, or Italy. His contributions to English literature make 'British author' the correct answer.

Kenneth Vivian Thimann is known for his studies of plant hormones, which were widely influential in agriculture and horticulture. He isolated and determined the structure of auxin, the first known plant hormone.

This is the correct option.

This is the correct option. 

Antonie Philips van Leeuwenhoek  is commonly known as  the Father of Microbiology. Sperm cells were first observed by him.

Alfred Nobel invented dynamite in 1867. He was a Swedish chemist who established the Nobel Prizes using his fortune from dynamite and other inventions, including ballistite.

Correct answer is (3). 

BASIC was developed by John Kemeny and Thomas Kurtz at Dartmouth College in 1964. While only Kemeny is listed, he was indeed one of the two co-developers. Charles Babbage was a 19th-century computer pioneer, and John Keats was a poet.

Niklaus Wirth, a Swiss computer scientist, developed the Pascal programming language in 1970. Pascal was designed as a language for teaching structured programming and data structures. George Booler is not a known computer scientist, Charles Babbage was a 19th-century pioneer, and 'None of these' is incorrect.

Haberlandt was the first scientist who isolated a single plant cell and cultured it over artificial culture media.

The principle of linkage was first observed in Pea by Bateson and Punnet in 1906.

Hugo de Vries proposed the mutation theory of evolution.

Strasburger gave the first satisfactory account of the structure of nucleus and its mode of division.

Jacob and Monad got the Nobel Prize in 1965 for the discovery of operon.

Arthur Tansley, a British ecologist, was the first person to use the term ecosystem in a published work.