It allows the scientist to determine the effect of the changed variable , it also allows samples and organisms to be tested under comfortable conditions
Answer:
1.
Explanation:
Controlling the level of sugar in the blood is an example of a feedback mechanism
The answer is B) limiting, would you like an explanation? <span />
Answer:
lead pencils (graphite)
fertilizer (potassium, sodium, calcium)
chalk (gypsum)
flashbulb (zirconium)
window glass/mirrors (silica)
table salt (halite)
Explanation: