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inysia [295]
3 years ago
8

History: When did stem cell research become known? Who discovered stem cells? What experiments or studies have been conducted so

far?
Biology
2 answers:
Fofino [41]3 years ago
5 0

In 1963 James Edgar Till discovered that bone marrow transplanted cells in the spleen of mice self-replicated. With the research, Canadian scientist James Edgar Till discovered stem cells that have become a known and controversial subject ever since.

From this, stem cells have become the subject of numerous studies and experiments, and are the main subject of many debates. Experiments have already been performed that tested the influence of stem cells in cancer treatments, cloning, chronic disease treatments, experiments that evaluate the possibility of organ transplantation from animals to humans, tumor treatment, among others.

Several segments of the population have taken a position contrary to this type of research, as they claim that the good of society cannot be obtained from the death of some individuals, even if still in the embryonic stage. The Roman Catholic Church, as well as Protestant churches has defended this position, also accepted by many unrelated scientists and philosophers, that a person's life begins with fertilization, so there is no ethically adequate justification for such research. .

avanturin [10]3 years ago
3 0

Answer:

The stem cells was discovered by Ernest McCulloch and James Till in 1981. Studies conducted for stem cells can be used for bone marrow transplantation and to treat various diseases.

Explanation:

Stem cell are the cells that has the ability to differentiate into different cells of the body. In 1978 human cord blood discovered as stem cell. The stem cell research come to known in 1981.

Ernest McCulloch and James Till discovered the stem cell research while working on the mice bone marrow. He found that the different blood cells were formed by the single class of cells.

Experiments on mice and other animals have been conducted to study the stem cells so far. The study of stem cell is useful to cure the genetic defects, Cancer and other harmful diseases.

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The white hair of a polar bear is an example of a(n) __________
Anna35 [415]

Answer:

The white hair of a polar bear is an example of adaptation.

Explanation:

Adaptation allows organisms to adjust to their surroundings so that they can survive. Polar bears live in the Arctic region, which is one of the coldest places in our planet. They have sharp teeth and their ears are small to reduce the heat loss. They have a thick coat of insulated fur, which insulates their thick layer of body fat and keeps them warm. They have large paws, that are covered by fur which protects them from sinking in the snow and also provides a good grip on ice. Their coat of white fur helps them to hide from their prey by providing a camouflage in Arctic environments.

5 0
3 years ago
What would most likely be included in the "Analysis" section of a lab report?
IgorC [24]

Complete Question:  

What would most likely be included in the “Analysis” section of a lab report?

1) a discussion of any errors in the experimental data

2) a list the supplies that were used in conducting the experiment

3) suggestions for new experiments based on the results

4) a description of what the dependent and independent variables were

Answer:

1). <u>a discussion of any errors in the experimental data</u>.

In the analysis section of the lab report, after analyzing and investigating the data, errors are identified in the experimental data. Furthermore, discussion carried out to point out those error occurred in the data. In an analysis process discussion is carried out to find the errors in the whole process. In this process all facts and figure are gather to inquire if there are any errors or mistake present in the final values or final result. Analysis section in a lab report has a key role because it make sure that the final result is error free.

8 0
2 years ago
Which of the following choices correctly describes the composition of the cell membrane
lukranit [14]
I would say the second one

3 0
3 years ago
Read 2 more answers
How much does an elephant weight
Amiraneli [1.4K]
It depends on the elephant for example an African bush elephant weighs around 13,000 pounds and a Asian elephant weighs around 8,800 pounds and a African forest elephant weighs 6,000 pounds
7 0
3 years ago
Read 2 more answers
The process that enables cells of the body to burn food and release energy is called
serg [7]

...respiration!

Respiration is the biochemical process in which the cells of an organism obtain energy by combining oxygen and glucose, resulting in the release of carbon dioxide, water, and ATP (the currency of energy in cells). Source: https://study.com/academy/lesson/what-is-respiration-definition-process-equation.html

I hope that helps! :)

4 0
2 years ago
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