The organisms in the Cretaceous period and Permian Period are now extinct.
The emergence and demise of specific living forms are represented by time periods on the geologic time scale that span hundreds of millions of years. A mass extinction is a period of geologic time when a large number of plant and animal species go extinct, sometimes within a few thousand to a few million years.
Life has recovered after each of the five significant mass extinctions that have taken place during the past 500 million years. Because it led to the extinction of the dinosaurs, the mass extinction at the end of the Cretaceous Period is the most well-known. However, the Permian Period's end saw the most extreme one in terms of the number of species destroyed.
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Answer:
yes you are right its the Aryans
Explanation:
According to one theory by British archaeologist Mortimer Wheeler, a nomadic, Indo-European tribe, called the Aryans, suddenly overwhelmed and conquered the Indus River Valley.
Answer:
The answer is C, Societies could be improved through the use of reason
Explanation: We dont talk about rats
Answer:
candy and no-candy condition
Marnie's strategy used researchers to find out the number of misbehaviors among the children( little enough to fit in shopping cart). She tries to pick chilren randomly by picking out every fifth child who is little enough to fit in cart for her research. She limits her research to certain age group.
Age group is the extraneous variable in the experiment
Ethical challenge: The researchers followed the child. So they had to be careful
mode in candy condition: 3
range in no candy condtion is 3
They can reduce number of mis-behaviors by disciplining them.
Explanation:
Independent variable: Candy and no-candy condition.
Her strategy is to pick chilren randomly so she directs researchers to pick every fifth child. She also restricts her research to a certain age group. The age group is restricted by making sure that child is small enough to fit in shopping cart.
age group. She controlled this by making sure children were small enough to fit in shopping cart.
The researchers followed the child around the store which is unethical. They must have been careful not to get noticed.
range in no-candy condition: 4-1=3
authoritative parenting help to discipline the children
