Gonadotropic hormones are produced by .....

The following four wires of length $L$ and radius $r$ are made of the same material. Which of these will have the largest extension,when the same tension is applied?

The total number of atomic orbitals in the fourth energy level of an atom is .......

Who proposed the cell theory for plants?

$A$ body of weight $64\, N$ is pushed with just enough force to start it moving across a horizontal floor and the same force continues to act afterwards. If the coefficients of static and dynamic friction are $0.6$ and $0.4$ respectively,the acceleration of the body will be (Acceleration due to gravity $= g$)

Two plants can be conclusively said to belong to the same species if they