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Dominik [7]
2 years ago
9

How does weathering of rock expanding and breaking rocks apart impact water quality?

Biology
1 answer:
ivann1987 [24]2 years ago
6 0
Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth.
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A different DNA ladder from NEB (Cat #N3200L) comes as 500 uL of a 1000 ug/mL solution and is not pre-mixed with the 6 X DNA loa
JulijaS [17]

Answer:

4 ul Loading Buffer + 19.70 ul dH2O + 0.30 ul DNA Ladder

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Explanation:

DNA Ladder concentration = 1000 ug/ml

1000 ug DNA in 1 ml DNA Ladder solution →    150 ng DNA = 0.15 ug DNA in..... 0.00015 ml = 0.15 ul DNA Ladder solution

6x DNA Loading Buffer → it has to be diluted by an equal volume 6 times (1 ul LB + 1 ul distilled H2O)

An appropriate volume to load on an average agarose gel is 12 ul, so:

2 ul Loading Buffer + 9.85 ul dH2O + 0.15 ul DNA Ladder = 12 ul

But since 0.15 ul is a very small volume and mistakes could be made while measuring it, let's make double:

4 ul Loading Buffer + 19.70 ul dH2O + 0.30 ul DNA Ladder = 24 ul

And load half of that solution (12 ul) on the gel.

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3 years ago
What do you call an organism that lives in or on another organism and feeds on that other organism
goldfiish [28.3K]
The host. have a good day!!
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Salsk061 [2.6K]

Answer:

Plants compete with eachother for necessary resources. They compete for nutrients, light, water, space, and pollinators.

Explanation:

hope this helps :)

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What do all members of the swine species always have in common?
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Answer:

The members of the swine species <u>always have the same number and kinds of chromosomes</u>.

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How does a comparison of the embryos provide evidence of evolution?
MakcuM [25]

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Comparative embryology is one of the main lines of evidence in support of evolution. In comparative embryology, the anatomy of embryos from different species are compared through the embryos development. Similarities between different species indicate that we all came from a common ancestor.

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