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Sever21 [200]
3 years ago
14

Which of the following statements is true about prokaryotic and eukaryotic cells?

Biology
1 answer:
zvonat [6]3 years ago
6 0
The answer is <span>A. Prokaryotic cells reproduce asexually using binary fission, while eukaryotic cells use mitosis to divide. 

Prokaryotic cells produce only asexually using binary fission. However, eukaryotic cells are more complex and they use mitosis to divide. They divide only sexually, so binary fission is not an option for eukaryotic cells.</span>
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Why are enzymes necessary? to the rate of decomposition to act as a catalyst in chemical reactions to conserve the stored energy
mario62 [17]
Enzymes acts as a catalyst in chemical reactions to speed up the rate of reaction.

Enzymes are not necessarily needed because substrates can disintegrate on their own, but enzymes are helpful to aid this process.

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2 years ago
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Which type of mining is likely the least harmful to the environment?
bezimeni [28]

Answer:

Placer mining can be less damaging to the environment than surface mines, as the sediment is returned to the water after the minerals have been extracted.

Explanation:

8 0
2 years ago
Dean is a crime scene photographer. In which order should he photograph the crime scene?
Artemon [7]
There is no prescribed length of time it takes to photographically document a crime scene. The amount of time spent depends on the size and complication in the crime scene, how much there is to document and environmental factors like weather or danger to the investigative team. It can consist of thousands of photographs and hours of work.
Crime scene photography should not just focus on the obvious. The purpose of crime scene photography is to document what is there and where it is in relationship to the scene, whether it is obviously connected to the crime or not. For example, a photographer in Florida shot the inside of every cabinet and the refrigerator at a homicide scene in a home, just as a matter of procedure. It was later discovered that the victim had a receipt for a six-pack of beer, matching the beer shown in the photograph of the refrigerator. Relatives noted that the victim did not drink beer. Further investigation led the team to the convenience store where the beer was purchased and the surveillance tape showed the victim with an unknown person purchasing the beer. It turns out that the victim had picked up a hitchhiker, purchased beer for that person and come back to the house. The photograph of the refrigerator contents had created the link enabling the investigators to find the suspect.
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2 years ago
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A 4-year-old boy with a tracheostomy tube is experiencing respiratory distress. He has intercostal retractions, a heart rate of
creativ13 [48]

Answer: carefully suction the tracheostomy tube.

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4 0
3 years ago
Based on the demonstration and your microscopic investigation, which of the three solutions is hypotonic to the red blood cells?
r-ruslan [8.4K]

You have given no demonstration based on your microscopic investigation so I cant tell you the answer to the question. I will try to help you by elaborating how to decipher..

Three terms hypotonic, hypertonic and isotonic are used when referring to two solutions separated by a selectively permeable membrane.

The hypertonic solution has a great concentration of OAS than the solution on the other side of the membrane. It is described, therefore, as having a great osmolarity. The hypotonic solution has a lower concentration of OAS, or osmolarity, than the solution on the other side of the membrane. When the two solutions are at an equilibrium, the concentration of OAS being equal on both sides of the membrane, the osmolarities are equal and are said to be isotonic.

The net flow of water is from the hypotonic to the hypertonic solution. When the solutions are isotonic, there is no net flow of water across the membrane.

If red blood cells are placed in a solution with a lower solute concentration than is found in the cells, water moves into the cells by osmosis, causing the cells to swell; such a solution is hypotonic to the cells.

So, look at the information and data you have on your microscopic investigation and use these guidelines to tell you which is which.
6 0
2 years ago
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