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Artist 52 [7]
3 years ago
5

The function(s) of the sternum is (are) to

Biology
2 answers:
Llana [10]3 years ago
8 0

Answer:

the 3rd. please follow Me......

lorasvet [3.4K]3 years ago
5 0

Answer:

The 3rd one actually cause it also protects your heart

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Which structure provides the best surface for diffusion?
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<h3>♫ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ♫</h3>

➷ The structure that provides the best surface for diffusion to occur is the bronchioles.

<h3><u>✽</u></h3>

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3 years ago
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Which type of selection tends to increase genetic variation? A. Disruptive selection B. Directional selection C. Stabilizing sel
aliina [53]

Answer:

Which type of selection tends to increase genetic variation? A. Disruptive selection B. Directional selection C. Stabilizing selection

The Answer is option A (Disruptive selection)

Explanation:

Selection can either shift the mean value of a trait, reduce the trait's variation, or increase its variation.

Genetic variation which allows natural selection to increase or decrease frequency of alleles already in the population is a source of phenotypic variation as it refers to differences in all the hereditary information of members of the same species.

Disruptive Selection is important in maintaining variation and initiating speciation as it Increases Variation by favoring alleles corresponding to more extreme phenotypes. But for it to occur, the mean phenotype has to experience the lowest fitness. Disruptive selection affects the frequency distributions of alleles and genotypes within a population.

Disruptive selection is based on the variance of a trait in a population as it increases genetic variance by equalizing the frequencies of existing alleles at polymorphic loci (a genetic loci with two or more alleles). Disruptive selection maintains and may even increase variation in natural populations by favoring extreme phenotypes, individuals with extreme values for a trait have greater reproductive success than individuals with intermediate values.

7 0
3 years ago
What type of material is a lens
guapka [62]
It is mostly glass and fiber glass
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Which person should the charge nurse assign as a roommate for a client diagnosed with aplastic anemia?
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Aplastic anemia refers to a disorder that takes place when the body loses the tendency to generate enough amount of new blood cells. Aplastic anemia is a rare and serious disorder that can develop or arise at any age. In the condition, the person becomes fatigued and possess a greater threat of developing infections and uncontrolled bleeding.  

Thus, in the given case, the nurse should appoint a roommate who is free from any kind of infectious disease or any other thing, which can stimulate an infection.  


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