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Kamila [148]
3 years ago
12

What types of sedimentary rocks are formed from the remains of dead organisms

Biology
2 answers:
Arturiano [62]3 years ago
5 0
<span>Coal and limestone. These are two that you are looking for. I hope this helps you.</span>
kicyunya [14]3 years ago
4 0

Answer:

Organic

Explanation:

I took the test

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According to natural selection, individuals that tend to survive are those that have which of the following?
DedPeter [7]

Answer:

The genetic variations that are best suited for their enviornment

Explanation:

Those that are not well suited for their environment will die off, leaving only the ones that are suited for it. This species will slowly take hold until the species has adapted and become a completely different one.

6 0
3 years ago
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It’s easy to understand why multiple bands would be present in the lanes containing DNA that has been cut with restriction enzym
bulgar [2K]

Answer:

These bands represent different confirmation of DNA

Explanation:

pGLO DNA is a plasmid DNA that is used as a vector for genetic engineering. Plasmid DNA is found in supercoiled confirmation in vivo. The double helix forms extra twists to easily fit inside the cells. During isolation of plasmid from the cell, nicks can be introduced in the DNA due to harsh isolating methods or contamination by nuclease. As a result the supercoiled confirmation is changed into circular confirmation. It is bulkier than the supercoiled form and travels more slowly. When both DNA stands get cut at the same place, the DNA gets liner confirmation. In the end, supercoiled DNA runs the fastest on gel followed by linear DNA and then the circular DNA.

8 0
3 years ago
How does mRNA differ from DNA?
ch4aika [34]
DNA  is made up of deoxyribose sugar  while mRNa is made up of ribose sugar. DNA has thymine as one of the two pyrimidines while mRNA has uracil as its pyrimidines base. DNA is present in the nucleus while mRNA diffuses into the cytoplasm after synthesis. DNA is double stranded while mRNA is single stranded.

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5 0
3 years ago
Why is it important for a cell to perform checks after DNA replication?
zimovet [89]

Answer:

A. If errors are not removed from areas with a gene, then the resulting proteins could be affected.

Explanation:

Since the genes in DNA contain instructions for the synthesis of proteins, any mistakes in areas of a gene will change how proteins are made.

It is important for cells to perform checks in order to catch these mistakes, because otherwise, RNA will be carrying the wrong instructions to create a protein.

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How do human activities contribute to the water, nitrogen, and carbon cycles?
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Human activities such as pollution , like trash , or boat oil can effect the waters that house 100 of creature and as for nitrogen cycle things like forest burning and fossil fuel combustion can result in the increased deposition of nitrogen from atmospheric sources
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