Answer:
Common sources of error include instrumental, environmental, procedural, and human. All of these errors can be either random or systematic depending on how they affect the results. Instrumental error happens when the instruments being used are inaccurate, such as a balance that does not work (SF Fig
Explanation:
Answer:
Yes, i would say so. Fruit is good for you, chocolate is good for you, chocolate is a fruit.
B. At high temperatures, the active site of the enzyme is damaged and it is no longer able to attack itself to the required substrate as its shape will no longer match.
"Light reactions need light to produce organic energy molecules. They are initiated by colored pigments, mainly green colored chlorophylls. Dark reactions make use of these organic energy molecules. This reaction cycle is also called Calvin Benison Cycle, and it occurs in the stroma."
The short answer is: The scientist means that a dose of 20 mg per kilogram is enough to kill one half or fity percent of the animals used in the test. LD stands for leathal doseage. The 50 means 50 percent. Subsequently a dose of 20 mg per killogram has a lethal dose that will kill 50% of the test subjects.
