The number of taxa exhibiting asexual reproduction is drastically reduced in the higher plants (angiosperms) and higher animals (vertebrates) as compared with lower groups of plants and animals. Analyse the possible reasons for this situations.

Which of the following statements, support the view that elaborate sexual reproductive process appeared much later in the organic evolution. Lower groups of organisms have simpler body design Asexual reproduction is common in lower groups Asexual reproduction is common in higher groups of organisms The high incicdence of sexual reproduction in angiosperms and vertebrates. Choose the correct answer from the options given below:

Species diversity of plants (22%) is much less than that of animals (72%) .Analyse the reason for greater diversity of animals as compared to plants.

Try to collect all the currently accepted meanings for the word 'species'. Discuss with your teacher the meaning of species in case of higher plants and animals on one hand, and bacteria on the other hand.

Is it possible to consider vegetative propagation observed in certain plants like Bryophyllum, Water hyacinth, Ginger etc. as a type of asexual reproduction? Give two/three reasons.