Answer:
The earliest stone tool making developed by at least 2.6 million years ago. The Early Stone Age began with the most basic stone implements made by early humans. By 200,000 years ago, the pace of innovation in stone technology began to accelerate. Middle Stone Age tool kits included points, which could be hafted on to shafts to make spears. During the Later Stone Age, the pace of innovations rose. People experimented with diverse raw materials the level of craftsmanship increased, and different groups sought their own distinct cultural identity and adopted their own ways of making things.
Explanation:
The antigen's foreignness is the most important determinant of immunogenicity when considering an antigen.
An antigen in immunology is a molecule, molecular structure, foreign particle, pollen grain, etc. that may attach to a particular antibody or T-cell receptor. Antigens within the body may cause an immunological response.
Antigens are outside elements. Normally, the body's defence cells don't react to molecules that belong to it (self antigen). A substance's antigenicity is often correlated with its foreignness . When compared to antigen from other members of the same species, it is less antigenic.
A foreign substance must make up the immunogen. Only substances that are not normally found in the body or exposed to the cells of the particular immune system trigger immune reactions. The immune system will distinguish between "self" and "non-self" in normal circumstances.
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Ability to inspire gotta want people around you to want to achieve better, ability to listen don’t know everything, and honesty
You find out the theme. Which is the underlying messages a story gives. Then provide evidence that supports the theme.
The correct answer would be option A, the negative symptoms of schizophrenia
His demeanor is unusual compared to most people because he does not show emotional expression when he speaks, and does not appear to have the ability to read other's emotional expressions. These symptoms are also known as the the negative symptoms of schizophrenia.
Explanation:
Schizophrenia is a mental disorder in which people cannot interpret the reality normally. Their thoughts, feelings, perceptions, behaviors and emotions are all faulty and abnormal. Schizophrenia can cause delusions, hallucinations and extremely disordered thinking.
There are two types of symptoms of schizophrenia. One is Negative and the other is positive. Positive symptoms may include hallucinations, delusions, and racing thoughts, whereas negative symptoms may include apathy, lack of emotion, poor or nonexistent social functioning, etc.
So when Barry does not show his emotional expressions when he speaks, it means he has negative symptoms of Schizophrenia.
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