Ancestor of man, who first stood erect, was
Homo erectus
Cromagnon
Both $a$ and $b$
None
$A$ : Blood group analysis shows the human beings are more closely related to apes than to monkeys.
$R$ : The blood groups $A$ and $B$ are found in apes but not in monkeys.
The first life on earth came in water and evidences indicate that life orginated in one of the following eras
Man was originated in which of the following era
Which one of the following is a pair of homologus organs
Genetic drift operates to