Which animals have evolved from reptiles?

In recent years,$DNA$ sequences (nucleotide sequence) of $mt-DNA$ and $Y$-chromosomes were considered for the study of human evolution,because

Match the columns:

Column-$I$	Column-$II$
$(1)$ Mutation	$(a)$ Change in population allele frequencies due to chance alone.
$(2)$ Gene flow	$(b)$ Difference in survival and reproduction.
$(3)$ Natural selection	$(c)$ Immigration,emigration change allele frequencies.
$(4)$ Genetic drift	$(d)$ Source of new alleles.

The $Mesozoic$ era is also known as the:

During evolution,which of the following plants lost its chlorophyll?

Similarity developed in distantly related groups as an adaptation to the same function is called