The organisms in the Cretaceous period and Permian Period are now extinct.
The emergence and demise of specific living forms are represented by time periods on the geologic time scale that span hundreds of millions of years. A mass extinction is a period of geologic time when a large number of plant and animal species go extinct, sometimes within a few thousand to a few million years.
Life has recovered after each of the five significant mass extinctions that have taken place during the past 500 million years. Because it led to the extinction of the dinosaurs, the mass extinction at the end of the Cretaceous Period is the most well-known. However, the Permian Period's end saw the most extreme one in terms of the number of species destroyed.
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North Korea considers the United States a threat and an outsider that shouldn’t be on the Korean Peninsula. The military exercises are seen as a act of agression
Answer: False
Hormones are molecules produced by glands which are transported by the circulatory system. Neurons, on the other hand, are cells that are designed to transmit information to other nerve cells, muscle or glands cells. They have a cell body, an axon, and dendrites. Neurons are the basic unit of the brain and their function is to transmit information.
