Archaeologists study settlement patterns primarily to reveal population estimates and degrees of social complexity that is a kinds of information about prehistoric communities.
The Prehistoric Communities or Society is an international learned society which devoted to the study of the human past from the earliest times.
Population estimates can describe the size of the total population as well as demographical characteristics such as age, education level, or sex. Population estimates are completely dependent on the demographical components of change, i.e. migration, mortality and fertility.
Social complexity is a kind of conceptual framework which is mainly used in the analysis of society. Contemporary definitions of the complexity in the sciences are generally found in relation to systems theory where a phenomenon under study has multiple parts and multiple possible arrangements of the relationships between those.
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Answer:B6 and B12.
Explanation:
Homocysteine is an amino acid produced from demethylation of methionine.The later is an amino acid needed in the body which must be conserved.
In order to conserve it ,Homocysteine is recycled in a specific pathways which inovles activities of Vitamin B6 and B12
.Therefore deficiency of these vitamins leads to elevated levels of Homocysteine.
HIGH LEVELS OF HOMOCYSTEINE AFFECT THE ENDOTHELIAL CELLS ;LEADING TO ABNORMAL CLOTTING OF BLOOD.THIS INCREASE IN BLOOD VISCOSITY PUT THE HEART AT RISK OF CARDIOVASCULAR DISEASES.
<span>The genetic term used to describe an observable trait is phenotype. More specifically phenotype is the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.</span>
External would be skin, nose hair, etc. Internal is white blood cells and bacteria that the body makes to help prevent infections.
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I believe it's A, but I could be wrong. I apologize if I am so. I will do further research and get back to you