Why are lymph nodes considered secondary lymphoid tissue?
Lymph nodes produce white blood cells, but they do not use white blood cells to fight infection.
Lymph nodes use white blood cells to fight infection, but they do not produce white blood cells.
Lymph nodes are the second line of defense against infection.
Lymph nodes are produced by the primary lymphoid tissues.

Answers

Answer 1

Explanation:

they filter out pathogens they mantain the population of mature lymphocytes
Answer 2

The secondary lymphoid organs are the lymph nodes and spleen, which keep the number of mature lymphocytes in check and filter out infections, hence option B is correct.

What is secondary lymphoid tissue?

The thymus, where T-lymphocytes develop, and red bone marrow, which produces blood and immune cells, are the two main lymphoid organs.

Lymphocytes are also stimulated in secondary lymphoid tissues. Peyer's patches, tonsils, spleen, lymph nodes, and mucosa-associated lymphoid tissue are among them (MALT).

Numerous lymphocytes, a kind of white blood cell, are found in lymph nodes. They produce substances that stimulate other immune system components and aid in the battle against the illness. This is the reason why when you have an infection, your lymph nodes expand.

Therefore, the lymphocytes in your lymph nodes grow if you have an infection, hence option B is correct.

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Related Questions

read "path to zero hunger by 2030." how is world hunger connected and affected by the sustainable development goals? pay attention to the trends and challenges on the infographic​

Answers

Answer:

Hunger effects the process of sustainable development.

Explanation:

The main goals of the sustainable development is zero hunger in the world because without removing hunger we can't attain sustainable development. There are seventeen goals of sustainable development in which hunger is also present so we can say that world hunger has a direct connection and affected by the goals of sustainable development. If the sustainable development has to occurs we have to remove or bring hunger to zero.

!!! I mark a brainliest !!!
Making Informed Healthcare Decisions:
- A two- to three-sentence review of the health solutions you chose, and your reasoning for choosing them
- Use sites such as the Centers for Disease Control and Prevention (CDC) or Consumer Reports for product reviews, or consult a physician for more information. (Cite credible sources to back up your answer.)
- Use your research to list and review three health solutions for each health issue.
- Use your research to identify the most effective health solution for each health issue.
- Write summaries of the health solutions you chose.

Answers

Answer:

It states write 3 summaries of three things. I chose cancer, weight loss, and diebeties.

Explanation:

Summaries of the health solutions I chose.

Cancer: Why is it that only the very expensive places that you can travel to have everything down to a meal planned to assist you with dying or getting better?  Shouldn't all medications and procedures be made available to anyone that needs it? Just because cancer treatments are a lot of money, some people have cancer but not the money. This needs to change.

Weight Loss: There are so many options available, yet the education on how to eat and live healthily is forgotten.  If we would take the time to teach families how to eat healthily, help them with the grocery list, and provide classes to help them learn how to prepare these items in a healthy manner would be appropriate and beneficial.

Diabetes: All people do not have access to everything that they need and they often cannot afford the office visits, etc to include the medication and food prep that they need. This could cause their condition to get worse. There should be ways for people to get the medicine they need even if they can’t afford it.

Other Stuff: People are going to have to be taught how to make an appropriate decision based on their healthcare and their family's needs.  We cannot continue to expect a young mother that is poor and does not have transportation and does not have the money to buy certain foods to be healthy and to make healthy meals for her family. We need to work on not making these young mothers feel guilty based on how to care for their children/families.  Most of them are trying their best and our message to them is that they need to be responsible and give healthy choices to their children/families.  Classes need to be made available online and at certain places in the community so that the solutions to the health problems are attainable for everyone.  People need to receive incentives for attending these types of classes and they may even need a computer or transportation.

Answer: To the person above me, is this an actual response from you, or is it a sample response?

Explanation:

Please respond to me as soon as possible. THANK YOUUU :)

Motivation is best described as the
desire to continue with your exercise
• ability to set goals for your exercise
C way you see your exercise
• ability to be successful with your exercise

Answers

Answer:

desire to continue with your exercise

Desire to continue with your exercise

1. The amount you tan or burn while in the sun depends on the amount of _______ in your skin.

A. melanin B. blood vessels C. fat D. hair follicles

2. _______ in your skin helps you feel sensations.

A. Sweat glands B. Nerve endings C. Fat D. Connective tissue

3. Sunburns and skin cancer are attributed to _______ radiation exposure.

A. UVA B. UVB C. UVC D. UVA and UVC

4. A condition that is not caused by exposure to UV radiation is _______.

A. wrinkles B. leathery skin C. acne D. brown age spots

5. Doctors recommend using sunscreen with an SPF of at least _______ on a daily basis.

A. 15 B. 30 C. 45 D. 60

6. The sun’s rays are strongest between 10:00 AM and _______.

A. 1:00 PM B. 2:00 PM C. 4:00 PM D. 5:00 PM

7. When exposed to sunlight, the ______ thickens to block out UV rays.

A. epidermis B. sweat gland C. dermis D. subcutaneous tissue

8. The amount of sunburn a person gets depends on his or her ______ and ability to produce melanin.

A. weight B. height C. vision D. pigmentation

9. People with severe sunburn can experience each of the following symptoms except _______.

A. tendonitis B. fever C. chills D. weakness

10. _______ is effective in filtering out the sun’s harmful rays.

A. Snow B. Cloud cover C. Clothing D. Water

11. Thick ointments with zinc oxide that help block sunlight from the skin are called ______.

A. sunscreens B. sunblocks C. moisturizers D. chemical peels

12. After sunburned skin peels, the new thin and sensitive skin that appears must be protected from the sun for several _______.

A. hours B. days C. weeks D. months

Answers

Melanin , Nerve endings,  UVB rays, leathery skin, 30, 4:00pm, Epidermis, Pigmentation, Tendonitis, Cloud cover, sunscreens, weeks are the right answers in the following fill in the blank respectively.

What are UV radiations?UV radiation is a kind of non-ionizing radiation released by the sun as well as artificial sources like tanning beds. While it has certain advantages for individuals, like as the production of Vitamin D, it may also be harmful to their health. The sun is our natural source of UV radiation.Harmful effect of UV raysUVB rays have a minor advantage over UVA rays in terms of energy.They are the principal rays that cause sunburns because they may directly damage the DNA in skin cells.They are also suspected to be the cause of the majority of skin malignancies.UVC rays have a higher energy level than other UV rays.Sunburns, skin cancer, ageing, and snow blindness (a sunburn to the cornea that causes a temporary loss of vision) are all caused by UVB rays, which can also reduce your body's capacity to fight sickness.Prevention of UV radiationShade your face, head, ears, and neck with a wide-brimmed hat. Wraparound sunglasses that prevent UVA and UVB rays are recommended. For UVA and UVB protection, use sunscreen with a sun protection factor SPF of 15 or greater i.e. 30. Indoor tanning should be avoided.

Hence, the correct options are A,B,B,B,B,C,A,D,A,B,A,C respectively.

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Losing more fluids than taking in will cause hydration.
A. True
B. False

Answers

Answer:

B

Explanation:

cause  mi teacher told me the answer lol

B. false Losing fluids cause dehydration

When stretching you should not take a
long time and rush through so you can
start your other workout?
False o true

False o true

Answers

Answer:

False

Explanation: Take as much time as you need to stretch. It is important to before and after doing a workout.

False.... Stretching should be slow and steady with no bouncing. Each stretch should be held for approximately 30 seconds

Which plays both a role in physical and chemical digestion?

Answers

Answer:

Saliva and your stomach

Explanation:

Both physical and chemical digestion start in the mouth. Your saliva breaks down the food into pieces that can easily be swallowed which also makes it easier to digest. Furthermore, the saliva breaks down the carbohydrates, and the stomach breaks down protein.

Answer:

B

Explanation:

Saliva

why does domestic violence happen?
A. the abuser is trying to control the victim
B. the abuser is in a stressful relationship.
C. the couple don't have much money and this causes stress in the relationship.
D. None of these.​

Answers

Answer:

A. The abuser is trying to control the victim

Explanation:

The abuser is trying to dominate the victim through abusive behavior or fights or rude statements. Kind of like animals when they fight for dominance this is close to that.

~ LadyBrain

Does anyone know this answer??

Answers

Answer:

Gabe's case did not require the services of a physical treatment

The 3rd one down is the answer

One under par on a golf hole is called a _________?
birdie
bogey
par
ace

Answers

Answer:

it is birdie

Explanation:

Minerals are essential nutrients that?

A.regulate vital body functions
B.can come from living sources
C.all of these are true
D.can come from non-living sources

Answers

☁️ANSWER:

Minerals are essential nutrients that?

A.regulate vital body functions

B.can come from living sources

C.all of these are true

D.can come from non-living sources

☁️WHY...?

All the choices there are true because minerals truly regulate body functions and can come from iving or non-living sources.

☁️ Authentic Answer

☁️ 좋은 하루 되세요 !!

❤︎ PeachyBuns ❤︎

Excess sugar that isn't used by the body is stored as what

-Glucose
-Glycogen
-Lactic Acid
-ATP

Answers

Answer:

B, Glycogen

Explanation:

Pls mark Brainliest

It is stored as glycogen

A driver over the age of 21 whose blood alcohol concentration is over 0.8 should be charged with a _

Answers

Answer:

chraged with a domestic demeanor

Select all of the following that are causes of low sperm count?
A) use of body-building drugs
B) heavy use of alcohol, cocaine, or marijuana
C) chronic, warm temperature of the testes
D) damage to the ducts that convey sperm

Answers

B and D are big factors
B and d are the mains

A ________ is a device that can be used to monitor daily physical activity.

1. digital scale
2. fitness band
3. standard wrist watch
4. talk test

Answers

I believe the answer will be fitness band. Sorry if I’m incorrect

which of the following is an effect of tobacco use

A. delayed menopause
B. Increased appetite
C.Premature aging
D.Kidney failure

Answers

D it affects the inside body which would be the kidney in this case
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