The answer would be : by comparing the DNA from the test using the Kastle-Meyer test. Kastle-Mayer test is used to detect possible presence of hemoglobin in the DNA. This results could be compared to the Law enforcement's database to find out the one's who is involved in the crime scene
Answer:
Explanation:
One of the biggest problems was that the national government had no power to impose taxes. To avoid any perception of “taxation without representation,” the Articles of Confederation allowed only state governments to levy taxes. To pay for its expenses, the national government had to request money from the states.
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Answer: 3) Confounding variable
Explanation:Confounding variable is the variable that indicates about the external influential factors that produces the manipulated consequences of independent and dependent variable.This variable can lead to producing useless outcomes in an experiment.
According to the question, the changes occurring in interest of student in algebra can be due to the outside factors which are not generating the actual results and thus, experiment is getting ruined.
Other options are incorrect because application variable remain same for the experiment,system variable are the variables of certain system and reliability variables describe about the variable on which dependent or stable.Thus, the correct option is option(3)
1.
The Columbian Exchange began in the 16th century.
2.
potatoes
3.
livestock
