Aget - 10 centaurus
Our earth is home to a vast
amount of variety of animals. Animals that we see every day would probably
include cats, dogs, cows, chicken, etc. But the animal kingdom is much larger
than just a few thousand species. With roughly around 1, 589, 361 species discovered,
the animal kingdom has so much to offer.
The animal kingdom is grouped
into two subphylum, invertebrates and vertebrates. Invertebrates are animals
without a back bone, meanwhile vertebrates are animals with backbone.
Vertebrates have Well-developed internal skeleton and highly developed brain
with an advanced nervous system. A vertebrate animal also has an outer covering
of protective cellular skin. Invertebrates have 30 phyla, while vertebrates are
classified into five groups: fish (Pisces), amphibians, reptiles, birds (Aves),
and mammals. The invertebrates makeup almost all of the Animalia kingdom with
98% of the kingdom being an invertebrate, while the other 2% consists of
vertebrates. Animals have been a very great help to mankind, from serving us
dinner, technology inspirations, disease cures and much more.
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