NEET Botany Evolution Class 12 Questions

From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in

Which of the following statements are incorrect for Natural selection? (i) Natural selection is based on certain observations which are factual. (ii) Populations are stable in size except for seasonal fluctuation, means that there had been competition for resources. (iii) Variation is the most fundamental evolutionary factor and all variations are inherited to the progeny. (iv) Variations which are heritable and which make resource utilisation better for few (adapted to habitat better) will enable only those to reproduce and leave more progeny. (v) Herbicides, pesticides etc., resistant organisms/cells are appearing in a time scale of months or years and not centuries. (vi) Appearance of herbicides, pesticides etc., resistant organisms/cells are examples of evolution by anthropogenic action.

Match column I with column II

Match List I with List II with respect to chronology of evolution of life forms

Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action?