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Georgia [21]
2 years ago
12

Running a mineral across a porcelain plate to see the color it leaves behind on the plate may be described as testing

Biology
1 answer:
Vika [28.1K]2 years ago
5 0

Answer:

D) Streak

Explanation:

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No system is closed off by it surroundings.

4 0
3 years ago
Read 2 more answers
DNA is to deoxyribose as DNA?
slavikrds [6]

Answer:

Deoxyribose, found in DNA, is a modified sugar, lacking one oxygen atom (hence the name "deoxy"). This difference of one oxygen atom is important for the enzymes that recognize DNA and RNA, because it allows these two molecules to be easily distinguished inside organisms.

Explanation:

5 0
3 years ago
Now we need to prepare a buffer that has a pH of 7.4. We need this specific pH to
Anestetic [448]

Answer:

b) By mixing weak base with its conjugate acid and then adjusting the pH with strong  acid.

Explanation:

Hello,

In this case, considering that the buffer required a pH greater than 7 where the basic conditions are present, we need a weak base and its conjugate base in order to assure such pH greater than 7. Moreover, by using a strong acid, we can gently add it in order to decrease the pH up to 7.4 via a properly measured neutralization of the necessary moles of base up to a hydrogen concentration of 3.98x10⁻⁸ (pH). Therefore, answer is b) By mixing weak base with its conjugate acid and then adjusting the pH with strong  acid.

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8 0
3 years ago
What does it mean when a trait is independent from another trait? Give one example.
coldgirl [10]

Answer:

It means one trait does not influence the expression of the other. Example is given in the explanation section.

Explanation:

A trait is the phenotypic characteristics an organism possesses. It is determined and controlled by genes. According to Mendel, an organism receives two forms of every gene called ALLELE. Each allele of a gene encodes a different trait.

Mendel, in his law of independent assortment stated that the inheritance of a trait encoded by the alleles of one gene does not influence the inheritance of another trait encoded by the alleles of another gene. A trait is said to be independent of another if it doesn't influence the expression of the other trait.

An example is the seed colour and seed shape trait in a plant. The seed colour trait is encoded by a certain gene and its expression and inheritance is independent of the seed shape trait encoded by another gene.

8 0
3 years ago
PLEASE HELP Scientists in a lab were running tests on a new enzyme found inside of squid ink. While experimenting how the enzyme
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3 years ago
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