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lubasha [3.4K]
2 years ago
12

In a human body blood carries oxygen to the organs which of the following pumps blood trough tout the body

Biology
2 answers:
Sati [7]2 years ago
8 0
I think it’s the heart because it pumps blood and without it a persons will be dead
Ipatiy [6.2K]2 years ago
5 0

Answer:

A.heart

Explanation:

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black is the dominant phenotype.

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The black gene "overrides" the gene that codes for blue, thus making it dominant.

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How many chromatids are in each replicated chromosome
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Each chromosome (replicated or not) contains 2 chromatids.
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The concept presented to explain the origin of eukaryotic cells, namely that a bacterial cell parasitized another descendant cel
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The concept presented to explain the origin of eukaryotic cells form a bacterial cell parasitized by another descendant cell is called endosymbiosis.

<h3>What is the endosymbiotic theory?</h3>

The endosymbiotic theory is a well-sustained theory in biology about the origin of eukaryotic cells.

According to this theory, eukaryotic cells emerged by endosymbiosis between primitive eukaryotic cells and bacteria that converted into mitochondria and chloroplast organelles.

The endosymbiotic theory is well sustained in several scientific observations such as the existence of DNA in mitochondria and chloroplasts that is independent of nuclear DNA, the size of ribosomal units, etc.

In conclusion, the concept presented to explain the origin of eukaryotic cells form a bacterial cell parasitized by another descendant cell is called endosymbiosis.

Learn more about endosymbiosis here:

brainly.com/question/1698852

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2 years ago
Would you expect the entire crop grown from your preferred stalk to show the characteristics of the parent crop? Explain your an
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Over the ages the tendency of crop improvement efforts has been to select varieties with traits that give the highest return, largely by concentrating on genetic strains that combine the most desirable traits. The resulting homogeneity and uniformity can offer substantial advantages in both the quantity and quality of crop harvested, but this same genetic homogeneity can also reflect greater susceptibility or pathogens. Thus it appears the more that agricultural selection disturbs the natural balance in favor of variety uniformity over large areas, the more vulnerable such varieties are to losses from epidemics. The increased risks presented by genetic selection and the increased cultivation of only a few selected cultivars are easily perceived. Chapters 1 and 2 of this reports focus on crop vulnerability, because it is a broadly recognized problem. The issue of genetic vulnerability, however, is only one of several important problems affecting the management of global genetic resources.

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3 years ago
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