Prompted by observations of seemingly related species

This topic has expert replies
User avatar
Master | Next Rank: 500 Posts
Posts: 345
Joined: Sun Dec 21, 2008 10:57 pm
Thanked: 6 times
Followed by:3 members
Prompted by observations of seemingly related species in neighboring locales that he made during his five-year voyage around the world on the HMS Beagle, Charles Darwin conceived his theory of natural selection in which all species evolved over time from a single ancestor or very few common ancestors.

A
in which all species evolved over time from a single ancestor or very few common ancestors

B
in which all species evolve from a single ancestor or very few common ancestors over time
C
whereby over time all species evolve from a single ancestor or very few common ancestors
D
whereby all species have evolved over time from a single ancestor or very few common ancestors
E
whereby all species evolved over time from a single ancestor or very few common ancestors
Source: — Sentence Correction |

User avatar
Senior | Next Rank: 100 Posts
Posts: 40
Joined: Mon Sep 24, 2012 12:07 am
Location: Kabale, Uganda
Thanked: 1 times

by pscher31 » Thu Jan 10, 2013 1:45 am
IMO A


It is the difference between two prepositions.

'Whereby' means 'by which', hence you merely need to look at the words 'by' and 'in'.

If you need to refer to the means of getting something done, you use 'by'. You might say something like "the rules by which you must follow" or "the rules whereby you must follow".

If you need to refer to an inclusion within a physical or abstract space, you use 'in which'. You might say something like "this is the chair in which I sit" or "this is the time in which this art belongs".[/spoiler]

• Page 1 of 1