Question

Write the contribution of a) Robert Hooke. b) Leeuwenhoek

Answer 1

Answer:

Robert Hooke: Robert Hooke was the first scientist to observe cells,in 1665. He observed the cells in a cork slice with the help of a primitive microscope. Leeuwenhoek (1674), with the improved microscope, discovered the free living cells in pond water for the first time.

Robert Brown: Robert Brown in 1831 who discovered the nucleus in the cell.

Answer 2

Answer:

1.(a) Robert Hooke is credited with the discovery of the cell and stating the laws of elasticity. Robert Brown has made important contributions to botany through his pioneering invention and use of the microscope. He also gave the earliest detailed descriptions of the cell structure....

2. Leeuwenhoek. In 1976 he discovered first living cell bacteria and named it animalcules. He is also known for the discovery of RBC, sperm and protozoa.....