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3 years ago

Which of the following statements does not accurately describe stem cells?

2 answers:

8 0

Hello! The answers are not A or C, because those are true. Embryonic stem cells do make up the cell mass of the blastocyst and undifferentiated cells can repair or replace bad cells. Adult stem cells are not multi potent and can not differentiate into different types of cells. The answer is D.

son4ous [18]3 years ago

7 0

The answer to this question would be B. the use of stem cells is without any objections since it can be used in therapies to help humans.
The use of stem cell has many controversies, mostly in the religious group that is pro-life. Since the cell of a zygote is totipotent and be able to differentiate into the most type of cell, it is better to use zygote cells. But some religions consider that cell is already human after fertilization, thus using zygote cells is considered as killing a human.
Human blood cell and umbilical cord are multipotent. There should be no pluripotent in the adult by default, but there is some research about induced pluripotent stem cell (IPSCS) in the adult.

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What is the primary purpose of respiration

jolli1 [7]

Answer:

im pretty sure its breathing

Explanation:

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3 years ago

Read 2 more answers

How do scientists know about the structure of the earth?

Andrew [12]

Answer:

I think it's " P waves from earthquakes can travel through both solids and liquids so they tell us what is inside the earth. "

Explanation:

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4 years ago

Classify each statement as an example of adhesion, cohesion, or surface tension. Drag each statement to the appropriate bin. A s

LekaFEV [45]

Answer:

A sewing needle floats when it is placed gently on top of water in a bucket - surface tension

Water molecules ding to plant cell walls - adhesion

A water strider runs across a pond without breaking the surface - surface tension

A drop of water spilled on a table forms a drop on the table, rather than spreading out over the surface - cohesion

Water molecules cling to the side of a beaker - adhesion

Water molecules are attracted to each other - cohesion

Explanation:

The surface tension refers to the tendency of the surface of a liquid to remain unbroken by an external force due to the cohesive property of the molecules of the liquid. Instead of being broken, the surface of the liquid stretches like an elastic membrane.

The adhesive property of a liquid, also known as the force of adhesion, refers to the property of the molecules of the liquid to stick to other molecules while cohesive property or cohesion refers to the property of molecules of liquids to stick to themselves.

Hence,

Surface tension

A sewing needle floats when it is placed gently on top of water in a bucket.
A water strider runs across a pond without breaking the surface.

Cohesion

A drop of water spilled on a table forms a drop on the table, rather than spreading out over the surface.
Water molecules are attracted to each other.

Adhesion

Water molecules ding to plant cell walls
Water molecules cling to the side of a beaker

8 0

3 years ago

Predict the likely effect on the ability of substance L to enter the cells if substance L is attached to a large protein instead

Pani-rosa [81]

Answer:

Since the cell membrane is semi-permeable, the likelihood of substance L entering the cell attached to a large protein is lower than that of substance L free in the culture. Substance L enters the cell membrane through active transport, but the cell membrane may block the larger protein, thus blocking substance L, if it is attached to the large protein.

Explanation:

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3 years ago

Ecology is defined as...

4vir4ik [10]

C. The branch of biology that deals with interactions of organisms with each other and the surroundings :)

7 0

3 years ago