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AfilCa [17]
2 years ago
7

What radiation is used in hospitals and how does it cause a problem for staff/workers?

Biology
2 answers:
UkoKoshka [18]2 years ago
8 0
Radiation is used for X-rays, MRIS, any type of cancer killing. 
Too much of radiation can be a dangerous thing... you could end up dying from a lot of exposure. 
Strike441 [17]2 years ago
7 0
The radiation used is gamma radiation. It causes a problem for staff/workers as it's highly penetrating meaning it can penetrate (go through) almost anything . The staff/workers will have a lot of exposure to this gamma radiation and too much exposure allows the radiation to kill cells, even the useful ones.
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When a objects remain in the same place is called
ruslelena [56]

Answer:

you would say that the object is in its "resting position"

7 0
2 years ago
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Which statement represents the correct association of organisms and their habitat? Each organism will be found in only one habit
AleksandrR [38]
<span>The correct answer is Some plant and animals are restricted to a particular habitat. That means that they would not be able to live in other habitats either because of natural predators that would eliminate them or because they would ruin the ecological system if they were to interfere with the natural order of things. Things like climate might also affect this.</span>
7 0
3 years ago
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In the southern european plains, a species of flower comes in two colors, purple and pink. when pink flowers are most common in
gogolik [260]
<span>It will result in Negative frequency-dependent selection.

</span> Frequency-dependent selection is when the fitness of a phenotype depends on the frequency of the other phenotype in the population. In this case is negative frequency-dependent selection, because the fitness of a phenotype(pink) decreases as it becomes more common.



8 0
2 years ago
Describe one observation that supports the theory that mitochondria and chloroplasts originated as independent prokaryotic organ
olga nikolaevna [1]

Answer:

  • Both organelles present their genetic material.
  • Both organelles divide by binary fission
  • Both organelles present a double membrane, the internal one looks identical to the bacterial membrane, while the external membrane looks like the eukaryotic one.
  • In the internal membrane are placed the energy centers, just as it occurs in bacterias membrane.
  • The sizes of the organelles are similar to the size of some procaryotes

Explanation:

The endosymbiotic theory essentially states that some organules of the eukaryotic cells, such as mitochondria and chloroplasts, were once free-living bacteria. Probably, these organisms must have been phagocytized but not digested by another cell. These bacteria were able to adapt to their host, establishing a bond of dependence among each other.

Both organelles have many similarities with other free-living bacteria. For this reason, the theory states that chloroplasts derivate from cyanobacteria (because they both absorb sunlight, store the energy in ATP, and produce organic molecules) and that mitochondria derivate from rickettsias (because they produce ATP in the same way, by using the Krebs Cycle and Oxidative Phosphorylation).

This theory is supported by a few characteristics of the chloroplasts and mitochondria that suggest that they once were free cells. For example,

  • Both organelles present their genetic material. This DNI is independent of the cells´ DNA, is bi-catenary and circular, identical to the bacterial DNA, and very different from the one of the eukaryotic cells.
  • Both organelles divide by binary fission, not by mitosis, and can synthesize their ribosomes and organelles.
  • Both organelles present a double membrane, a characteristic that reinforces the idea of being phagocyted. The internal membrane looks identical to the bacterial membrane, while the external membrane looks like the eukaryotic one.
  • In fact, in this internal membrane are placed the energy centers, just as it occurs in bacterias membrane.
  • Finally, the sizes of the organelles are similar to the size of some procaryotes

3 0
3 years ago
If a mother is homozygous for curly hair and the father is homozygous for straight hair, what percentage of the offspring will e
makvit [3.9K]

Answer:

<h2><u>The correct answer is "D" 100 percent</u></h2>

Explanation:

If the allele for curly hair is incompletely dominant and a mother is homozygous for curly hair and the father is homozygous for straight hair, the percentage of the offspring that will exhibit characteristics of both parents is 100%. 

Hope this help

plz mark brainliest

Have a nice day!!!!!

5 0
3 years ago
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