The answer is D. A compound
Before the development of electrophoresis to separate macromolecules, high-speed centrifugation was used to isolate DNA.
A laboratory procedure called electrophoresis is used to divide DNA, RNA, or protein molecules according to their size and electrical charge. The molecules are moved by an electric current through a gel or other matrix. The technology of electrophoresis is crucial for the separation and examination of nucleic acids. At the lab bench, cloned DNA fragments are frequently isolated and worked with using nucleic acid electrophoresis.
High-speed centrifugation employs centrifugal force to separate particles with various densities or masses suspended in a liquid. High-speed rotation of the solution inside the tube causes each particle's angular momentum to experience centrifugal forces inversely proportionate to its mass.
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When it has sunlight and water
Answer:
Explanation:
We are given the mass, specific heat, and temperature, so we must use this formula for heat energy.
The mass is 5 grams, the specific heat capacity is 0.14 Joules per gram degree Celsius. Let's find the change in temperature.
- ΔT= final temperature - initial temperature
- ΔT= 95°C - 15°C = 80°C
We know the variables and can substitute them into the formula.
Multiply the first numbers. The grams will cancel.
Multiply again. This time the degrees Celsius cancel.
56 Joules of heat are needed.
During a lifetime, a heart beats 3.1 x 10^9 times and it beats 91 times in one minute.
Thus, we can use cross multiplication to determine the number of minutes in the person's lifetime as follows:
number of minutes in person's lifetime = (3.1 x 10^9) / 91 = 34.0659 x 10^6 min
One year has 365.25 days (disregarding leap). Each day has 24 hours and each hour has 60 minutes.
Therefore,
one year = 365.25 x 24 x 60 = 525960 minutes
We can now use cross multiplication to determine the number of years of a person's lifetime as follows:
number of years = (34.0659 x 10^6 x 1) / 525960 = 64.76899 years.
