All living organisms have an ability to . (reproduce/metamorphosis)

Study the following statements of plant growth. Choose the correct option ?
(i) One single maize root apical meristem can give rise to mor than $17,500$ nerr cells per hour
(ii) A cell in watermelon can increase in its size up to $3,50,000$ times
(iii) Growth of pollen tube is measured in the terms of its length
(iv) Grorth in dorsiventral leaf is measured in terms of an increase in its suface area

Which of the following is not a defining feature of all living organisms?

The most important of all living systems is to