Answer:
lead pencils (graphite)
fertilizer (potassium, sodium, calcium)
chalk (gypsum)
flashbulb (zirconium)
window glass/mirrors (silica)
table salt (halite)
Explanation:
Answer:
To achieve precipitation of the DNA.
Explanation:
Isopropyl alcohol makes the DNA sediment. The DNA, once out of the solution, becomes visible, as it clumps.
The result of adding isopropyl alcohol is the precipitation or sedimentation of DNA when DNA becomes like a visible thread with the help of alcohol and salt. The precipitation of DNA is important because it removes the dirt from DNA.
The answer is the equilibrium concentrations or pressures of each species that occurs in the equilibrium expression, or enough information to determine them. These values are substitued into the equilibrium expression and the value of the equilibrium constant is then calculated.
Answer:
d. Simple Columnar Epithelia
Explanation:
The simple columnar epithelium is an epithelial tissue that has a single layer of nonciliated cells. The cells look like columns and have oval nuclei near their base. This type of epithelial tissue has microvilli at the apical surface of their columnar epithelial cells. These microvilli are the fingerlike cytoplasmic projections that serve to increase the surface area for absorption.
Simple columnar epithelium makes the linings of the gastrointestinal tract, specifically from the stomach to anus where they live the cavities of these organs.
