Animals
can be classified into 2 group :
vertebrates and invertebrates. Examples
of vertebrates are reptiles, birds, fish,mammals
and amphibians. Invertebrates are such as
protozoa, coelenterates, flatworms, arthropods, annelid worms, molluscs
and echinoderms. Examples of Arthropods
are Arachnide Crustaceans Insects and Myriapods.
Force system can be classified into 2 type: coplnar and non-coplanar or spatial forces. Examples of coplanar are
collinear, concurrent, parallel and general (non-concurrent non-parallel). Parallel includes
like and unlike.Concurrent, parallel and general (non-concurrent non-parallel) examples of non-coplanar or spatial forces.
ไม่มีความคิดเห็น:
แสดงความคิดเห็น