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The answer is <span>c. to anticipate the observations or measurements that will be made.
</span>Controlled experiment is used parallel with experiment in which some alteration of the subject is induced. This is because this way can be compared in treated and non-treated subject. This way <span> the observations or measurements that will be made can be </span><span>anticipated.</span>
Answer:
Their own food materials through photosynthesis by using sunlight, water and carbon dioxide. They also require other nutrients for growth and survival such as nitrogen (NOx) and phosphorus (POx).
Explanation:
pretty sure of it
Answer:
They use the polymerase chain reaction.
Explanation:
- Polymerase chain reaction ( PCR) is a processof making numerous copies of a specific segment of DNA quickly and accurately.
- The polymerase chain reaction helps researchers to obtain the large quantities of DNA that are needed for various experiments and procedures in molecular biology, forensic analysis, evolutionary biology, and medical diagnostics.
Flooding can cause rivers to expand. when it does, it can get out of control and go to any urbanization near by. once it does it picks up any small items in the city. this can cause the river to get dirty, or polluted.
When people make dam's, a earth quake could happen, causing the dam to collapse and create a flood. If humans didn't build the dam, the flood would never happen.