Why is the system of classification of organisms continually developing from year to year

Millions of plants, animals, and microorganisms found on earth, have been identified by the scientists while many new species are still being discovered around the world. Therefore, to classify these newly discovered species, with new characters, new systems of classification have to be devised every now and then.

the answers for the whole quick check is

1. b

2. b

3. a

4. c

5. b

6. a

7. d

answer; european crusades;