1.  Energy transformation is never 100% efficient because of

2. Which of the following is correct?

3. Two taxonomic species are distinguished from each other by

4. A group of closely related classes is called

5. Energy flow and energy transformation in a living system follow

6. Systematics deals with

7. A group of plants and animals with similar traits of any rank is

8. Phylogenetic classification is based on

9. Scientific name of plants are given by

10.  The defining characteristic of living beings is

11. As we go from species to kingdom in a taxonomic hierarchy, the number of common characteristics

12. Binomial nomenclature was given by

13. The ozone layer is found in the

14. The term phylum was given by

15. Taxonomic studies depends on

16. A system which gets a continuous flow of energy is called

17. Which is less general in characters as compared to genus

18. In a scientific name, the name of the author is printed in

19. Which of the following shows maximum diversity?

20. Wheat belongs to division ______.