Question
Biology Question on evolution
Diversification in plant life appeared
A
due to long periods of evolutionary changes
B
due to abrupt mutations
C
suddenly on earth
D
by seed dispersal.
Answer
due to long periods of evolutionary changes
Explanation
Solution
Diversification in plant life appeared due to long periods of evolutionary changes. Initially plants were thalloid. There were no differentiation among root, stem and leaves. Vascular tissues were absent.