The idea of natural selection as the fundamental process of evolutionary changes was reached
By Alfred Russell Wallace in $1901$
Independently by Charles Darwin and Alfred Russell Wallace in $1859$
Independently by Charles Darwin and Alfred Russell Wallace in $1900$
By Charles Darwin in $1866$
Branch of zoology dealing with similarities and differences between individuals related by descent is
Stings of honey bee and the stings of scorpion are
$I.$ analogous organs
$II.$ heterologous organs
$III.$ homologous organs
$IV.$ vestigial organs
The correct combination is
$A$ : Many countries have banned the use of antibiotics in the cattle feed.
$R$ : Dairymen give antibiotics in the feed to the cattle and it becomes breeding grounds for the antibiotic resistant bacteria
The term 'Fisheries' refers to