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tatuchka [14]
3 years ago
13

Recall from earlier chapters that cells are organized into ____________ which are organized into ____________ which, in turn, ar

e organized into ____________ .
Biology
1 answer:
Vera_Pavlovna [14]3 years ago
7 0
Cells are organized into tissues, which are then organized into organs, and are finally organized into organ systems. 

Systems are composed of different organs working together to carry out a common function or purpose. For example, the stomach, pancreas, intestines, are organs that are part of the digestive system, which breaks down the food we eat to give nourishment to our body. 

Similarly, organs are made up of similar tissues carrying out a common function, and tissues are made up of cells of the same kind or type, also carrying out a common function or purpose. 
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Does a prokaryote have a nucleus
creativ13 [48]

Prokaryotes are organisms whose cells lack a nucleus and other organelles. ... Prokaryotic cells are surrounded by a plasma membrane, but they have no internal membrane-bound organelles within their cytoplasm.

sorry if i'm wrong

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Only the proteins that the bacteria Escherichia coli (E. coli) needs are synthesized at any given time. For example, when lactos
nataly862011 [7]

The correct answer is A. Lac repressor.

Lac repressor prevents lac gene which are found in the DNA of Escherichia Coli from being expressed for many times.

Lac repressor is termed as DNA which binds proteins. It allows the expression of genes from coding which are made for proteins to be involved in metabolism of lactose which is in bacteria.

When there is no lactose which is available in the cell, then the genes are being repressed. Lactose are being converted to allolactose if they are available.

8 0
3 years ago
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How many chromosomes in the dna?​
wariber [46]
Should be 23 I think?
5 0
3 years ago
A surgeon is in the operating room assisting on a lung transplant he is working at the cellular level
Ronch [10]
The statement above is FALSE. In the scenario given above the doctor is working at the organ level. This is because, he is working with lung which is an organ that participates in breathing. The lung is an organ because it is made up of different tissues which are in turn made up of different cells. 
Working at the cellular level involve working with cells. For instance, when a microbiologist is growing a cell in a culture, he is working at a cellular level.
5 0
3 years ago
Both adult and embryonic stem cells have the potential to be used for medical treatment. Evaluate the potential use of adult and
Thepotemich [5.8K]

Stem cells are the body's raw materials — cells from which all other cells with specialized functions are generated. Under the right conditions in the body or a laboratory, stem cells divide to form more cells called daughter cells.Research carried out with the use of these cells has demonstrated their effectiveness in the treatment of various diseases, such as leukemia, heart disease and hematological diseases. Embryonic stem cells, in turn, have the ability to form any tissue in the body.

<h3>How are embryonic stem cells used?</h3>

Stem cells have the ability to differentiate and self-renew. For this reason, they can be used in the treatment of degenerative diseases. Stem cells stand out for their ability to transform into different cell types, that is, they are cells with a great capacity for differentiation.

<h3>What diseases could be treated with the use of Embryonic Stem Cells?</h3>

  • Diseases that can be treated with stem cells
  • leukemias. Leukemia is a generic term used to describe the “cancer” of leukocytes, the white blood cells.
  • Thalassemias.
  • Neuroblastoma.
  • Primary immunodeficiencies.
  • Sideroblastic anemia.
  • Metabolic diseases.
  • Sickle cell anemia.

With this information, we can conclude that Scientists are also working on ways to develop stem cells from other cells, using genetic “reprogramming” techniques.

Learn more about stem cells in brainly.com/question/25584485

#SPJ1

3 0
1 year ago
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