I believe the answer is: catgut tied to crude metal wires
The catgut is made by the intestines of mammals such as horse or sheep. Ancient Egypt was among the first one to use this method in order to preserve the teeth.
For wealthier citizens, they might use a more expensive metal for the braces. The Etruscans for example use gold as a form of brace in order to prevent tooth collapse.
Answer:
Hey there. That would be Jorge Soler.
Explanation:
That is for this year
Answer:
this my answer
/hope's helps/
Explanation:
It can have different compositions, but it has a set of characteristics that does not change.
Answer: c) the response results in an increase in the probability of an aversive or an appetitive event
Explanation:The word "positive" in "positive reinforcement" and "positive punishment" means that the response results in an increase in the probability of an aversive or an appetitive event.
Positive in positive reinforcement is a price or reward attached to an occurrence to strengthen a future occurrence.
Positive punishment is focus of reducing an unwanted behavior through presenting an unfavorable outcome
They do good things for the communtiy and pay taxes and obey the law which is good, and they set good examples.
