Explain how an index is used and calculated, and give an example.
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An index can be a measure of the genetic differences between animals, because the animals being considered are presumably raised under the same conditions and treated alike. An index is measured based on a scale of 100, with 100 being the group average. For instance, if a group of calves is weaned when the calves are 205 days old and average weight of the group is 583 pounds, an index of 100 equals 583 pounds. If one of the calves weighs 614 pounds, the calf is said to have a 205-day weaning index of 105.3, meaning it outperformed its peers_
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Which of the following is unlikely to directly affect the ability of a heating system to vent combustion products?
a. The diameter of the vent and vent connector b. The combined length of the vent and vent connector c. The number of elbows in the vent system d. The type of ignition system used
Two common types of metal roofing systems are the lap-seam roof and the _____.
a. seamless roof b. standing-seam roof c. laminated sheet roof d. interlocked seam roof
What field of science involves the study of our planet’s surface waters, including ocean and freshwater environments?
What will be an ideal response?
The generic schematic symbol for an amplifier is a ____ with one of its points facing to the right.
a. triangle b. diamond c. feathered arrow d. rhomboid