This is true.
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Answer:
The lithosphere is located below the atmosphere and above the asthenosphere.
Explanation:
Answer:
Once a star has reached the main-sequence stage of its life, it derives its energy almost entirely from the conversion of hydrogen to helium via the process of nuclear fusion in its core
Voltage-gated sodium channels represent the chemical (or molecular<span>) level of structural organization in muscle sarcolemma.
Chemical level of structural organization is the first and the simplest level within the structural hierarchy. It includes the smallest unit of any of elements-atom, which combine to form molecules and macromolecules which also combine to form organelles, the functioning units of a cell. Sodium channels are membrane proteins which means that they are macromolecules.</span>
Answer:
The plant types suitable during that period would be ferns, horsetails, and lycopods.
Explanation:
A geologic period and system, which covers 60 million years from the termination of the Devonian period to the start of the Permian period is known as the Carboniferous period. During the Carboniferous period, the plant life was luxuriant and extensive, mainly at the time of Pennsylvanian. It comprises ferns and fernlike trees, that is, the giant horsetails known as club mosses, calamites, or lycopods like Sigillaria and Lepidodendron.
Thus, if humans had been present to construct log structures during the Carboniferous period, then they would have used logs of ferns, horsetails, and lycopods for construction work.