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DiKsa [7]
3 years ago
15

What is one way a mountain might form

Biology
1 answer:
olganol [36]3 years ago
6 0

by the earth squeezing the tectonic plates to form a mountain

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The population in South Africa is more prone to sickle cell anemia (genotype "ss"). People with genotype "ss" survive only up to
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The answer is stabilizing selection.

<span>Sickle-cell anemia is a recessive disorder caused by the presence of two recessive alleles "s", so genotype is "ss". This disorder is characterized by sickle hemoglobin. In an area with malaria, heterozygous individuals "Ss" (with one dominant allele and one recessive allele) have an advantage. These individuals will have both normal and sickle hemoglobin. But pathogen that causes malaria affect only normal hemoglobin, so heterozygous individuals will have half of the hemoglobin resistant to the pathogen and those individuals are resistant to malaria.</span>

Stabilizing selection favors heterozygotes Ss,  disruptive selection favors dominant (SS) and recessive (ss) homozygotes, while directional selection favors dominant (SS) or recessive (ss) homozygote. Since in this example, people with genotype Ss (heterozygotes) are in advantage, then this is an example of stabilizing selection.

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3 years ago
The difference between the cellular make-up of a living organism and an aluminum cari is the ___
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6 0
3 years ago
What causes the formation of graded beds of sediment?​
Mamont248 [21]

In geology, a graded bed is one characterized by a systematic change in grain or clast size from one side of the bed to the other. Most commonly this takes the form of normal grading, with coarser sediments at the base, which grade upward into progressively finer onesI just learned about this in our rocks and minerals unit for science,

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which of the following is not a function of skin? to protect the body from infection to prevent the body from drying out to prot
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Ok, think about it.  Does your skin prevent germs from getting inside you?
Does your skin prevent water from leaving the body too quickly?  Does your skin protect your insides from getting damaged when you fall?  Do you put food on your skin to absorb nutrients, or do you put food in your mouth like a normal person?
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Why are chloroplasts absent in epidermal cells ?
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<em>the function of epidermis is to protect the leaf
make it air tight 
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also it is transparent and allows all light to enter...
   chloroplast is required for carrying out process of photosynthesis...
    as epidermis is not specialized to carry out photosynthesis... so it does not have any chloroplast...</em>
6 0
3 years ago
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