<span>Evaluation of a system provides new information also known as feedback.</span>
Answer:
Explanation: . What small animal is being studied in the red forest? a) rabbit b) dormouse c) finch The researchers studied the bones of animals eaten by the white tailed eagles. What were they? a) fish b) mice c) small birds Why do storks require large, undisturbed forests? Storks, wolves, beavers, deer, and eagles have been reported in the area. Today, radiation levels in the Red Forest can be as high as one roentgen per hour, but levels of ten milliroentgens per hour are more common. More than 90% of the radioactivity of the Red Forest is concentrated in the soil.
The correct answer is option (A) Variation in the strawberry plants.
When the effect of fertilizer on the growth of two strawberry plants is tested, unavoidable source of experimental error is the variation in the strawberry plants. Variation refers to the deviation or differences from the normal plant which can be due to genetic variation. It is due to change in the DNA sequence. If any one of the two plants being tested show variation, the rate of metabolism differs and changes the growth pattern of the plant. The rate of absorption of water and nutrients is effected which brings change in the growth of the plant and causes an error in the experiment and the result.
