Explain the growing diversity of plants and it's evolution.
Answers
Answer:
The study of plant evolution attempts to explain how the present diversity of plants arose over geologic time. It includes the study of genetic change and the consequent variation that often results in speciation, one of the most important types of radiation into taxonomic groups called clades.
Plant diversity refers to the existence of wide variety of plant species in their natural environments. There are around 300,000-500,000 species of vascular plants that exist on earth.
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Answer:
Animals have achieved greater diversification than plants due to reasons :
(i) They have nervous system to receive stimuli and respond against them Most of their responses are adaptive for their survival in changing environment.
(ii) They are mobile and to avoid competition. They show niche specialization.
(iii) They are subjected to less seasonal and more constant environment. Plants are fixed and require fewer evolutionary adaptations in order to obtain their requirement of water, minerals and sunlight or avoid destruction due to excessive herbivory. All this has resulted in higher species diversity among animals than plants