Answer:
7 Important Criteria for Classification of Animal Kingdom
Symmetry: Many protozoan's are asymmetrical because they are not divisible into equivalent parts; a few show spherical symmetry. ...
Segmentation: ...
Appendages: ...
Skeleton: ...
Sex: ...
Embryonic development: ...
Larvae:
Explanation:
International Labour Organization
Answer:
a. Went on crusades , built churches , and collected holy relics