Why might humans not have widespread regeneration abilities?

Answers

Answer 1

Answer:

Humans have some stem cells, but those cells are not easily available to help with healing. Most other mammals are the same, so they aren't good at regeneration either. Amphibians and some fish have stem cells that are more easily available, and are usually pretty good at regeneration.

Answer 2
But they think it is because mammals have more complex biological structures; limb regeneration would require sophisticated controls to ensure that limbs and organs don't grow out of control. Humans, for example, are already equipped with safety mechanisms to ensure that individual cells don't grow uncontrollably.

Related Questions

describe the ventricular systole in the cardiac cycle

Answers

Explanation:

Systole represents the time during which the left and right ventricles contract and eject blood into the aorta and pulmonary artery, respectively. During systole, the aortic and pulmonic valves open to permit ejection into the aorta and pulmonary artery. The atrioventricular valves are closed during systole, therefore no blood is entering the ventricles; however, blood continues to enter the atria though the vena cavae and pulmonary veins.

A truck was carrying a substance in a tank. The molecules of that substance were moving away from each other . The truck parked overnight in a place where energy transferred out of the substance

Answers

Answer:

The missing parts of the question and options are:

In the morning, the substance was a gas. How were the molecules moving in the morning?

a. They were moving more slowly away from each other.

b. They were moving more slowly in place.

c. They were moving more slowly around each other.

d. They were moving more quickly around each other.

The substance cooled down, but why was it still a gas?

a. The molecules are so attracted to each other that they need much more energy transferred in to change phase.

b. The molecules are so attracted to each other that they need more energy transferred out to change phase.

c. The molecules are not very attracted to each other, so they need much more energy transferred out to change phase.

d. The molecules are not very attracted to each other, so they need much more energy transferred in to change phase.

The answers are:

a. They were moving more slowly away from each other

c. The molecules are not very attracted to each other, so they need much more energy transferred out to change phase.

Explanation:

If the substance is a gas, the molecules collide with each other, and they drift apart. The intermolecular forces between molecules are weak. As a result, when they bump with each other, they do not get attached. Usually, in a gas, the molecules move fast in all directions, and they gain energy with their collisions. However, in this case, they move slowly because the substance lost energy overnight. If the substance loses more energy, it becomes a liquid, and its molecules would be more attracted to each other.

Which of the following statements about prescription drugs is FALSE?
A.

They are medicines.
B.

They can become illegal.
C.

They require a prescription.
D.

They can be resold freely.

Answers

Answer:

D.

Explanation:

XOXO

Kit

D is false you cannot sell prescription drugs or illegal drugs without working at a pharmacy and many other legal processes

Deer in receiving of a food order you notice a bag of rice with signs that the bag has been wet what do you do

Answers

I demand a refund:((((((

names of agencies that are responsible for first aid in emergency situation​

Answers

Answer:

Names of agencies that are responsible for first aid in emergency situation​

The Department of Health and Human ServicesRed CrossFederal Emergency Management Agency

Two mothers each buy the same pack of sweets. The one mother has 3 children and can give each child 12 sweets. How many sweets can the other mother give to each child if she has 6 children?​

Answers

Answer:

3times 12=36. there for 36/6 children=6 sweets

“I think we have a high rate of obesity because big companies make their food huge.”
(Disagree or agree and why)
(Psst just a short answer)

Answers

Answer:

Quiero decir que estoy de acuerdo, pero hay muchos lugares que tienen cosas buenas.

Explanation:

Answer: i agree

Explanation: the food be big.

What are the avantages of an MRI scan over an xray?

Answers

Answer:

One big advantage to an MRI scan is that there is no exposure to radiation as in the case with X-rays, CT scans, and PET scans. This means MRI can be used more safely on people who are particularly vulnerable to the effects of radiation, such as pregnant women and babies.

MRI also has the advantage over X-ray because it can identify swelling and inflammation. It can show both three-dimensional and cross-sectional images of the body.

What are the six personality types in the Holland Code? Identify one job you associate with each.

Answers

The six personality types in the Holland Code are Realistic, Investigative, Artistic, Social, Enterprising, and Conventional. Social is one job I associate with because you have to have great customer service and be nice to people.

___ in ____ new heroin users started out misusing ______________________.

Answers

Answer: Answer:

Drug misuse is when a medication is used inappropriately and not according to medical advice (wrong dosage, frequency, etc). Drug abuse refers to use of illegal drugs.

Explanation:

Drug misuse can be related to legal or illegal drugs. Although by definition, drug abuse refers to illegal drugs, one could argue that drug misuse could also be considered abuse.

Explanation:

what is smoking?How does it affect our life? ​

Answers

Answer:

Smoking causes cancer, heart disease, stroke, lung diseases, diabetes, and chronic obstructive pulmonary disease (COPD), which includes emphysema and chronic bronchitis. Smoking also increases risk for tuberculosis, certain eye diseases, and problems of the immune system, including rheumatoid arthritis.

What do you mean by the word "Solitary"? Explain it in your own words.

❌NO SPAM❌​

Answers

Question:

What do you mean by the word "Solitary"? Explain it in your own words.

Answer:

Solitary: The state of being free to be Alone or the state where you love to live without any friends or companions.

I didn't copy paste it,I have explained it in my own words as per I know. :)

Hope it helps you.

100 points---- Just take the points or make someone else's day?
They didn’t notice you were crying

They didn’t notice you were sad

They didn’t notice you were tired

They didn’t notice you were alone

They didn’t notice how attractive you were

They didn’t notice how sweet you actually are

They didn’t notice how you actually try to make other people smile




They did notice your failing grades

They did notice your unattractive

They did notice the mean side of you

They did notice all of your mistakes

They did notice all of your flaws

They did notice that you were not good enough for them

Answers

Answer:

I dont know what this is but you seem sad

Explanation:

if theres anything i can do to help...

your probably a great girl

who can do many things

so keep your chin high

If these people are making you feel this way you need to leave them

You arrive on scene to find a four-year-old boy with a fresh burn on his back in the approximate shape of a triangle with curved sides. The child is not crying and accepts your examination passively. During your examination, you notice yellow bruises and several healed scars. The father stands in the background with his arms folded, not looking at you. The mother tells you a detailed story about how the child pulled the iron onto himself by pulling on the cord.


Based on your scene size-up and primary assessment of the young boy with a large burn on his back, what do you suspect?
Select one:
A. Head trauma
B. Physical and psychological child abuse
C. Hypoxia and shock
D. Developmental disability

Answers

Answer:

B . Physical and psychological child abuse

Explanation:

top 5 activities to prevent drug abuse

Answers

Answer:

Understand how substance abuse develops. ...

Avoid Temptation and Peer Pressure. ...

Seek help for mental illness. ...

Examine the risk factors. ...

Keep a well-balanced life.

Explanation:

thank me later

Answer:

Seek for mental health

Effectively deal with peer pressure

Examine the risk factor

Having positive friends who won't pressure you.

Say no

Lifetime Health ch 19 review questions 1-20 its the version with 5 ppl on the cover

Answers

Can you send me a link of the book?

How many chambers in the Hart?

(Pringles)

Answers

Explanation:

The heart has four chambers: two atria and two ventricles.

The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle.

The right ventricle pumps the oxygen-poor blood to the lungs.

The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle.

Answer:

4

Explanation:

The heart consists of four chambers in which blood flows. Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle. The left ventricle pumps the blood to the aorta which will distribute the oxygenated blood to all parts of the body.

Alex has a BMR of 1,300 calories and he exercises lightly. His TEE is .

Answers

To find the TDEE you need to know the age and height of the person.

If Alex is an 18 year old woman who is 5'2 and 125 pounds her bmr would be 1,300 her TDEE on light exersice would be 2,016.

The following is an example of a good SMART goal : Michelle will be able to perform 7 perfect push ups within 6 weeks from today .

Answers

Answer:

Flase

Explanation:

The following is not a example of a good SMART goal

Which is an emotional benefit experienced by people who practice abstinence

Answers

Stress has to do with your emotions and practicing abstinence causes less stress. The female doesn't have to be scared because she might be pregnant, etc. Abstinence allows one to focus on goals etc. not on the goals of others.

Answer:

A. Experiencing Less Stress

Explanation:

boonk

Responsible behavior should be based on _______ and motivated by a will to _________ injury to self and others.

feelings, cause
rules of safety, prevent
instinct, inflict

Answers

Responsible behavior should be based on [tex]\sf\purple{rules\:of\:safety}[/tex] and motivated by a will to [tex]\sf\pink{prevent}[/tex] injury to self and others.

b) rules of safety, prevent

[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]

50 POINTS + BRAINLIEST

________ protects our organs, insulates our bodies, and help carry vitamins A, D, E, and K.

Fat
Protein
Sugar
Water

Answers

Answer:

Fat

Explanation:

Triglycerides, cholesterol and other essential fatty acids--the scientific term for fats the body can't make on its own--store energy, insulate us and protect our vital organs.

Hope it is helpful....

Answer:

Fat is the correct answer.

Explanation:

Fat protects our organs, insulates our bodies, and help carry vitamins A, D, E, and K.

Fat fills your fat cells and insulates your body to help keep you warm.

Which characteristic is typical of distress?

worry and anxiety
increased energy
improved motivation
better reaction time

Answers

99% sure it's worry and anxiety
The answer should be Worry and Anxiety

what is my age? Guess plz ​

Answers

Answer:

i think your 16 yr old hehe

Imagine you have your own blog. You want people to know the truth about teens and drugs. Write a paragraph to post on your blog that explains that most teens do not use tobacco, alcohol, or other drugs. PLS HELPP

Answers

Answer:

Although it is true that the use of recreational drugs, especially tobacco, alcohol or cannabis, is relatively common among adolescents, it is also true that the percentages in which this situation occurs do not exceed 20% of the total number of adolescents of the country. In other words, only 1 in 5 children under 18 years of age regularly use any of these three substances, while 80% stay completely away from their use. In this way, it is a concept that undergoes a generalization that is not true, but on the contrary a fallacious attribution to a whole group of people.

I need help for med school, I’ve been working on is for hoursss

Answers

Answer:

Graduated cylinder and the equipment is unknown.

Explanation:

The Graduated cylinder and the other instrument is used to measure the volume of urine as well as to find out the ingredients or materials that is present in the composition of urine. Turbidity, pH and density are the physical characteristics that can also be find out with these two instruments so we can conclude that there are many physical properties were find out with these two instruments.

A[n] ________ disease is a disease that can be passed from one person to another.

Select one:

a.asymptomatic

b.communicable

c.cardiac

d.adult-onset

Answers

Communicable

Communicable is another way to say its a tramission disease and that it can spread through people.

Communicable, its means that it can be passed

I’m confused on if it’s C or D please help

Answers

Answer:

i say C

Explanation:

I believe the answer is C, the word isolation causes me to equate it with her loneliness

If correct will give Brainliest

Answers

Answer:

A. Iron can be made by every cell in the human body

Explanation:

all the rest are true

Answer:

The correct answer is CHoice A.

(Iron can be made by every cell in the human body.)

Explanation:

Hope this helps!

Please mark me as Brainlinieast.

Imagine that a you and a friend are exercising together at a gym. Your friend suddenly trips and falls, and it is clear that he or she has suffered an ankle sprain. Luckily you know exactly what has happened. Explain how your friend sustained the injury and, assuming you had the necessary supplies, including a first aid kit and a phone, explain what steps could you take to stabilize your friend's injury.

Answers

Answer and Explanation:

My friend's ankle sprain occurred because he walked on an uneven surface. This caused his foot to turn towards the inside of his leg, stretching the ankle ligaments to the point of tearing them. To help my friend, I have to help him lie down and raise his foot, then I should apply a cold compress to his ankle and call the emergency service and explain what happened, so that he can receive care appropriate doctor. While we wait for the emergency service, I should move my friend's toes slowly to ease the pain and aid recovery.

The person is correct, I put this: My friend's ankle sprain occurred because he walked on an uneven surface. This caused his foot to turn towards the inside of his leg, stretching the ankle ligaments to the point of tearing them. To help my friend, I have to help him lie down and raise his foot, then I should apply a cold compress to his ankle and call the emergency service and explain what happened, so that he can receive care appropriate doctor. While we wait for the emergency service, I should move my friend's toes slowly to ease the pain and aid recovery.

And got a 100%.

On edge, have a good day :).

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