Answer: 27
Explanation:
Cobalt is a chemical element with the symbol Co and atomic number 27. Like nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron.
Answer:
Where and in what arrangement organisms are located
Explanation:
A population distribution shows where and in what arrangement organisms are located.
DNA testing can be used to identify samples from different persons by matching the linear order of nucleotides.
<h3>What is DNA testing?</h3>
DNA testing refers to the genetic approaches and technologies used in the investigation to match different DNA samples.
DNA testing is a very useful approach for identifying individuals and inferring ancestry in evolutionary studies.
In conclusion, DNA testing can be used to identify samples from different persons by matching the linear order of nucleotides.
Learn more about DNA testing here:
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The given data is Magnification, M = 15
Length of the tube , L = 16 cm
The focal length of the lens can be calculated by:
M = L/F
Substituting the value, we get:
15 = 16/f
f = 16/15
f = 1.067 cm
Using the equation of magnification we get,
M = v/u
Substituting the values we get:
15 = v/u
v = 15 u
With the help of lens formula, calculate the object distance:
1/f = 1/v + 1/u
Substituting the value we get,
1/1.067 = 1/15u + 1/u
0.937 = 1.067/u
u = 1.13 cm or 1.1 cm.
Hence, the object distance is 1.1 cm.
Answer: B, C
Explanation: Scientists use radiometric dating of meteorites and analyze the impact craters on planetary body surfaces to learn about the age of the solar system and its planetary bodies.
