Lamarck’s theory of inheritance of acquired characteristics – with reference to use of organs (e.g: neck and forelimbs of giraffe) and disuse of organs (e.g: vestigial organs in humans like wisdom teeth, vermiform appendix, pinnae).
Tick mark (√) the correct option in the following statement.
The fossil history of humans is _________.
Given alongside are two figures (A and B) showing a phenomenon that was first observed in Manchester before and after the year 1850.
Give the common name and the scientific name of the insect involved in this phenomenon.