Which ones are the most essential for origin of life?
Enzymes
Proteins
Carbohydrates
Nucleic acid
Australopithecus is also called
Given below some major events in the early history of life
$I.$ First heterotrophic prokaryotes
$II.$ First eukaryotes
$III.$ First autotrophic prokaryotes
$IV.$ First animals
Choose the correct sequence of these evolutionary events
The atmosphere became oxidising with the appearance of