<span>All of their skulls were fairly long with sharp teeth.</span>
The myelin sheath is the protective layer, which is present in the outer layer of the neural cells. This myelin sheath prevents the loss of electrical impulses, which are being conducted in the neurons. This also act as an insulator between neuron and its external environment.
This layer is mainly made up of the protein and fatty substance. The degeneration of the myelin sheath result in many neurological disorders.
Hence, the correct answer is myelin sheath.
Answer:
An ecosystem consists of a community of organisms together with their physical environment. In ecosystems, both matter and energy are conserved. Energy flows through the system usually from light to heat while matter is recycled.
Explanation:
<span>James Ussher was a creative scholar, a church leader
and became famous for his genuine letters of the church. He is the Archbishop
of all Ireland and majorly impacted Reformation theology. He is best
known for his chronology research that concluded Adam was created in 4004
B.C. In reality, Ussher was a first-class scholar very involved in
scholarly research. He regularly interacted with “the most learned men of the
day” to intellectually savor their ideas. He was also “a real connoisseur of
books,” and there was scarcely a book in any British library that he was
unfamiliar with. While James Hutton is known as the Father of Modern Geology,
Hutton is a Scottish Geologist and a naturalist who originated the concept of
earth’s crust during geological history, which explains the features of the
Earth's crust by means of natural processes over geologic time. Hutton
had formulated controversial theories of the origin of the earth and of
atmospheric changes known as 'uniformitarian’s'. This paved the way for modern
geological science.</span>