The correct answer is: Prions are proteins that are folded incorrectly.
These misfolded proteins have abnormal 3D structure but the cause is not clearly known. They aggregate in tissue and cause it damage and cell death. Prion aggregates are stable, meaning that are resistant to denaturation by chemical and physical agents.
Prions cause neurodegenerative diseases such as Creutzfeldt–Jakob disease (fatal degenerative brain disorder) or Gerstmann–Sträussler–Scheinker syndrome (also fatal).
The hominid that is described is <em>Australopithecus africanus</em>.
<em>Australopithecus africanus</em> is one of the extinct hominids. It lived approximately from between 3.2 to 2.1 million years ago, in the late Pliocene and early Pleistocene. It is a species that lived in Africa, but its total range is not well known as there is only four fossils from it found, all in the same region, in the southern part of Africa.
The <em>Australopithecus africanus</em> is thought to be the ancestor of the later <em>Homo habilis</em>, and it is also considered to be a direct ancestor of the modern <em>Homo</em> <em>sapiens</em>, though that is still debatable.
Answer:
Biomass
Explanation:
Biomass is renewable organic material that comes from plants and animals. Biomass was the largest source of total annual U.S. energy consumption until the mid-1800s. Biomass continues to be an important fuel in many countries, especially for cooking and heating in developing countries
