Answer:
Hi There! :P
Explanation:
A controlled experiment is simply an experiment in which all factors are held constant except for one: the independent variable. A common type of controlled experiment compares a control group against an experimental group. All variables are identical between the two groups except for the factor being tested.
<em>happy to help!</em>
Answer:
your answe is 1 million tasound
Explanation:
Answer:
i dono mabye he hated u??
Answer: Option D " all of the above "
Explanation: DNA can be a great source of information when used as a forensic evidence. This technique has many advantages and disadvantages when used as a source of information in case of crime.
Identical twins: There are some common fragments of DNA that is same in identical twins so it can be a difficulty in deciding the criminal.
Not enough of a sample: DNA should be present in a detectable amount to be used an sample for evidence, less than this detectable amount is a waste and cannot be used as a sample for evidence.
Contaminated and degraded sample: If the sample of DNA is contaminated or degraded then the result might be incorrect and might not be used as a sample for forensic evidence.
Hence, the correct answers are all of the above.
The procedures that can be used to perform water erosion laboratory practicals are:
- The use of detachment
- Transportation
- Deposition.
<h3>What is Water Erosion?</h3>
This refers to the biological process where rock particles are broken down into smaller particles and how they are removed by water.
Hence, we can see that in a laboratory experiment, one would need different apparatus such as:
- Pitchers
- Bottles
- Soil
- Water, etc.
This would be used to test the loss of water as it is put into the soil from the set of bottles to see how much the water is retained.
Read more about water erosion here:
brainly.com/question/1599677
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