Answer:
Volume of stock 50X TAE buffer required is 4 mL;
Volume of distilled water needed = 196 mL
The researcher will measure 4 mL of the stock 50X TAE solution using a pipette into a 250 mL volumetric flask. The researcher will then add 196 ml of distilled water to make it up to the 200 ml mark.
Explanation:
The following values are given: initial concentration, final concentration and final volume
Initial concentration,C₁ = 50X
Final concentration, C₂ = 1X
Final volume, V₂ = 200 mL
Initial volume, V₁ = ?
Using C₁V₁ = C₂V₂
V₁ = C₂V₂/C₁
V₁ = 1X * 200 mL/50X
V₁ = 4 mL
Therefore, volume of stock 50X TAE buffer required is 4 mL
Volume of distilled water needed = 200 mL - 4 mL
Volume of distilled water needed = 196 mL
The researcher will measure 4 mL of the stock 50X TAE solution using a pipette into a 250 mL volumetric flask. The researcher will then add 196 ml of distilled water to make it up to the 200 ml mark.
Answer:
frequency should be doubled
The disadvantage is that i hunt them down and suck the marrow from their bones
<span>Why was modern classification invented?
A: traditional classification could not classify all living things.
B:scientists realized related organisms do not share similar characteristics.
C: Scientists understood that species share a common ancestor.
D: modern classification is faster and easier to use.
the correct answer is C</span>
Answer:
Anaerobic heterotroph
Explanation:
E. histolytica It is an anaerobic parasite of the protozoan family. It's anaerobic because they can survive within the human being's organism in the absence of oxygen. It is heterotrophic because it feeds on digested food in the intestine of its guests. It also kills and degrades nearby cells to ingest nutrients.
This amoeba causes diarrhea. Amebic colitis is one of the leading causes of diarrhea in the world, especially in developing countries.