Scientists infer evolutionary relationships by comparing the early development of different organisms by phylogeny.
In scientific terms, the evolutionary relationship and history of an organism or cluster of organisms is termed its phylogeny. It describes the relationships of associate organism, like from that organisms it's thought to own evolved, to that species it's most closely connected, so forth.
Scientists collect information that enables them to create evolutionary relationships between organisms. Almost like a detective work, scientists use proof to uncover the facts. Within the case of phylogeny, evolutionary investigations specialize in 2 styles of evidence which are morphologic and genetic.
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Sin(30°) =1/2 0.5
cos(30°) = (√3)/2
Note that the sin of an angle is equal to the cos of the complementary angle:
sin(60°) =cos(30°) = (√3)/2 since 30+60 = 90 (compl. angle)
Considering the data in the question, the focal length of the objective lens that will give a total magnification of 200x is <u>0.8cm focal length.</u>
The whole question is:
You are using a microscope with a 10x eyepiece. What focal length of the objective lens will give a total magnification of 200x? Assume a length L = 160mm.
<h3>How was the answer derived?</h3>
Given that total magnification is 200
And the Assume length is 160
Since we used a microscope with a 10x eyepiece, the magnification would be divided by 10.
=> 200 ÷ 10 = 20.
Also, the focal length is measured in centimeters or meters; we would change the millimeters of focal length to centimeters. Therefore, we have 160 ÷ 10 = 16
The formula for the focal length of the objective lens = assumed length ÷ total magnification.
=> 16 ÷ 20 = 0.8cm.
Hence, in this case, it is concluded that the correct answer is "0.8cm."
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Answer:
The September equinox occurs the moment the Sun crosses the celestial Equator – the imaginary line in the sky above Earth's Equator – from north to south. This happens either on September 22, 23, or 24 every year.
Explanation:
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