Answer:
Paleozoic
Explanation:
The first insect fossils are dated to the Devonian, but because of the development of the genetics, the scientists have been able to trace the appearance of the first insects in the Ordovician. The insects originated from the crustaceans. Initially they were walking on land, but they hadn't developed wings. The wings came to develop in some insects in the Devonian, and since than it has gradually became one of their trademark features. It is interesting that the first insects actually appeared at the same time with the first terrestrial plants, and also that they are the first organisms to develop wings and be able to fly.
Answer:
internal migration: moving within a state, country, or continent.
external migration: moving to a different state, country, or continent.
Explanation:
Answer:
The essential value of the Universal Declaration of Human Rights, lays in the establishment and protection of individual's fundamental freedoms and rights. Although this document does not have the power to impose any obligations on a domestic level, it has served to bind international law's customs and propel the development of countless treaties, national constitutions, etc. Not losing sight of its limitations we can still see the massive influence it's had, in particular when it came to defining the meaning of these "fundamental freedoms" and "human rights". All members of the United Nations have adopted these igniting principles and commited to further developing the tools to secure and protect them for their citizens.
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