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Gnoma [55]
2 years ago
13

Which of these is not a natural earth cycle? rock water carbon oil

Biology
1 answer:
Andrei [34K]2 years ago
4 0

Answer:

The answer is oil .

Explanation:

<u>Oil</u> is not a natural Earth cycle.

(Correct me if I am wrong)

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A scientist thinks that a certain chemical is a mutagen. She exposes plant cells to a large amount of this chemical in the labor
bekas [8.4K]

Answer:

The cells change after being exposed to the chemical, and this change is passed to the next generation of cells.

Explanation:

A mutation is any change, whether big or small, that occurs to the nucleotide sequence of a gene in a cell as caused by mistake during replication or induced by a mutation causing substance. These mutation-causing substances are called MUTAGEN.

A MUTAGEN is any substance that causes genetic mutation in an organism's cell. These changes in the nucleotide sequence can affect one or more phenotypic characteristics of the affected organism, which is also passed to offsprings because it is a genetic change.

Hence, a plant cell exposed to this mutagen will be induced to mutate.

Hence, the cells changing after being exposed to the chemical, which is also passed to the next generation of cells best provides explanation that the chemical is a MUTAGEN.

4 0
3 years ago
Which of the following statements is true about the structure of the cell membrane?
miskamm [114]

Answer:

The correct answer is:

The two layers of the plasma membrane are identical.

Explanation:

The plasma membrane is called a lipid bilayer because it is composed of two layers of cells and it makes the boundary of cell.

The other three statements are false because

Plasma membrane is semipermeable i.e it allows the transport of materials inside and outside the cell.

The proteins in the plasma membrane are integral proteins

The proteins in the plasma membrane are extensively folded and protruding from the membrane are in contact with inside and outside the cell.

4 0
3 years ago
What strategies and electromagnetic frequencies are thought to be the most logical for long-range communication across the unive
katrin [286]

The answer is C. The widely used technique for finding extraterrestrial life is use of SETI (search for extraterrestrial intelligence) dishes that listen for radio waves from outer space. NASA has also been sending radio waves to outer space with messages that could purportedly be decoded by alien intelligent life.







7 0
3 years ago
Classify each feature as describing prokaryotic dna structure or eukaryotic dna structure.
Lapatulllka [165]
Please put the choices so we can help you futher please and thanks!
5 0
3 years ago
A client with heart failure has not slept for the past 3 nights because of dyspnea. arterial blood gas (abg) analysis reveals ph
Delicious77 [7]
The priority nursing intervention for this client is FOR THE NURSE TO TAKE CARE OF THE IMPAIRED GAS EXCHANGE.
Dyspnea is a medical condition in which the affected individuals have difficulty in breathing properly, that is, such individuals usually experience shortness of breath. Shortness of breath is one of the symptoms that are associated with heart failure. In the scenario given above, the first thing for the nurse to do is to ensure that the patient is breathing normally again, before setting out to take care of other things.
8 0
3 years ago
Read 2 more answers
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