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Triss [41]
3 years ago
12

What prevents a lake or ocean from freezing solid?

Biology
1 answer:
lina2011 [118]3 years ago
8 0

Answer:

The surface layer of the water freezes solid creating a barrier that insulates the ice below so that it keeps a steady temperature usually a few degrees above freezing (32 degrees).

Explanation:

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Andreyy89
There are only two things you need to know. 

<span>1. A probe works by base pairing to the DNA strand, so its sequence must be complementary to the DNA sequence of interest. </span>
<span>2. You need to know which strand is the strand of interest. </span>

<span>To tell the truth I'm not sure about the answer to question 2. Which one is the template strand? Either can be used as the template. I *think* the top strand is typically used as the template, but usually it's specified. Perhaps it's specified somewhere in your question or previously. </span>

<span>Anyway once you find your template strand, an mRNA was made from it so its sequence is complementary to the template strand. Then a probe was made using the mRNA as a template, so it is complementary to the mRNA, which in turn is complementary to the template strand (on the original DNA). So essentially what this means is that the probe will have the same sequence as the DNA template strand (the one you used to make the mRNA).</span>
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How would a biologist explain the variation in the beak sizes of these three species of finches? Question 5 options: The beak si
lidiya [134]
Could you put letters by the answer choices, it's too unorganized
4 0
3 years ago
Which feature is most likely to have been formed by wind? A. canyon B. root pry C. sand dune D. U-shaped valley
Svetllana [295]
The answer is sand dune
6 0
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Please help me i need th is for a big test! Thanks!
Setler [38]

Answer:

Your white blood cells are part of the immune system (helps fight off disease) while your red blood cells are part of the circulatory system  (transports oxygen and carbon dioxide between the lungs and the rest of the tissues in the human body)

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Answer:

True

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