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lana66690 [7]
3 years ago
10

For what purpose were oldowan tools most likely used

Social Studies
1 answer:
madreJ [45]3 years ago
7 0
Mostly for buthuring (sorry for spelling)
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Twenty-five-year-old Alexandra is mentally handicapped and can neither read nor write. However, after hearing lengthy, unfamilia
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<em>The correct option is d) someone with savant syndrome.</em>

Explanation:

Savant syndrome can be described as a condition in which a person who has mental disabilities is seen to be excellent or above average in certain other activities. Generally,people with savant syndrome have known to have excellent memory. For example, such people can be excellent in calculation or music abilities.  

As the scenario in the question depicts, Alexandra is mentally handicapped but excellent in music abilities. Hence, she is having savant syndrome.

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2 years ago
Negative reinforcement and punishment produce entirely different effects on behavior. Negative reinforcement the likelihood that
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Answer:

A. True                                  

Explanation:

Negative reinforcement: In psychology, the term "negative reinforcement" is described as a part of operant conditioning theory which was proposed by B. F. Skinner. It is referred to as a process through which a specific behavior or response is being strengthened through avoiding, stopping, or removing an aversive stimulus.

Punishment: In psychology, the term "punishment" is referred to as a term in operant conditioning theory and is described as a change in an organism's (animal & human beings) surroundings that generally occurs after a specific response or behavior that reduces the likelihood of the occurrence of that specific behavior in future.

In the question above, the given statement is considered as true as it refers that negative reinforcement increases the repetition of behavior in future whereas punishment decreases the occurrence of behavior in future.

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2 years ago
3. The area indicated by the blue arrow is a stream. In which direction does this stream flow?
Alex73 [517]

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It flows south pls mark brainliest

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3 years ago
Innovation and creativity is discouraged in a market economy<br><br> True or False?
Debora [2.8K]

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False because creativity helps economy growth.

Explanation:

Hope This Helps

Have A Great Day

4 0
2 years ago
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What two things would change if you swapped out dichloromethane and used ethyl acetate instead? why would those change?.
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If dichloromethane is swapped out and ethyl acetate is used in its place, the extracts then obtained would be highly anti-radical and would be more efficient than dichloromethane.

Since "like dissolves like," ethyl acetate is a polar molecule that works well as a solvent to extract the polar caffeine molecules from coffee beans. The ethyl acetate molecules bind to the caffeine molecules, which then move through the bean cells' cell membranes. After all, the ethanol:water (1:1) solvent combination has been demonstrated to be the best for recovering catechins and delivering extracts with the highest antiradical activity.

Dichloromethane is a volatile colourless liquid used as an organic solvent in many industries. One of its main application is that it used to extract caffeine because of its highly effective solvent nature. Because DCM is a non-polar solvent and caffeine is readily soluble in DCM, it can easily be extracted without losing its aroma.

To know more about dichloromethane, refer to the following link:

brainly.com/question/15402012

#SPJ4

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1 year ago
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