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murzikaleks [220]
2 years ago
9

Which best describes the outcome of mitosis?

Biology
1 answer:
Pie2 years ago
8 0

Answer:

Mitosis produces genetically identical daughter cells.

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Complete the phylogenetic tree by matching each characteristic that arose during the evolution of animals to its correct positio
spayn [35]

Answer:

The correct characteristics are -<em><u> tissue, coelom, segmentation, endoskeleton, and backbone</u></em> from top to bottom boxes.

Explanation:

This phylogenetic tree showing the evolution and relatedness of the different organisms on their shared characteristics. In the given phylogenetic tree there are some characters are missing and we can predict or state them on the basis of evolution and studying the characteristics.

After the Porifera phylum tissue-level organization is found in the organism hence Tissue would be placed in the first box.

The coelom is found organisms above the Nematoda level, which further include a character segmentation in Annelida and Arthropoda. Another lineage from arising with the coelom organism that included endoskelton and backbone.

Thus, The correct characteristics are - tissue, coelom, segmentation, endoskeleton, and backbone from top to bottom boxes.

3 0
3 years ago
Some autoimmune diseases show a positive correlation with dramatically decreased expression of histone deacetylase (HDAC9, an en
soldier1979 [14.2K]

Answer:

The positive charge of the histone proteins get reduced due to the process of histone acetylation, thus making the wrapping of DNA around the histones less tightened. The loose connected DNA afterward associates with the transcription factors for the articulation of the genes situated in that area.  

Generally, when there is no requirement of gene anymore, the acetyl groups from the histones get withdrawn by the activity of histone deacetylase enzyme (HDAC9) that makes the DNA tightly wrapped and inaccessible again. In case, when less expression of histone deacetylase enzyme occurs, the process of deacetylation fails to take place. This indicates that within an immune cell, at the time of infection, the inflammatory gene, which was made available does not get re-wrapped firmly around the histones.  

6 0
3 years ago
Two species of ant compete for limited resources in a front yard until only one species is able to remain. this is an example of
PolarNik [594]
I think this is an example of competitive exclusion principle. Competitive exclusion principle is a proposition that two species competing for the same limiting resource can not coexist at constant population values.For Example the Red squirrel is native to Britain but its population has declined due to competitive exclusion, disease and the disappearance of hazel coppices and mature confer forests i law land Britain.
3 0
3 years ago
What are the main structures of the lymphatic system ?
irakobra [83]

<span>The lymphatic system is considered as the subsystem of the circulatory system that is composed of networks of vessels, tissues and organs in vertebrates. Its anatomy is composed of lymph nodes and lymphatic vessels which connect the other parts systematically. A picture of the lymphatic system is attached below.</span>

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5 0
2 years ago
Which correlation represents the strongest correlation
Mariulka [41]
The strongest linear relationship is indicated by a correlation coefficient of -1 or 1. The weakest linear relationship is indicated by a correlation coefficient equal to 0. A positive correlation means that if one variable gets bigger, the other variable tends to get bigger.
3 0
3 years ago
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