The human immune system uses a variety of means to defend the body from pathogens. Of the lists below, which elements are parts of the human immune system?a. skin, lymph nodes, white blood cells, and spleen


b. mucous, urine, and kidneys

c. white blood cells and red blood cells


d. skin, neurons, muscle cells, and pancreas

Answers

Answer 1
Answer:

Answer: a. skin, lymph nodes, white blood cells, and spleen

Explanation:

The human immune system involves various components and organs which protects the body against the disease causing organisms. Among the given options skin, lymph nodes, white blood cells, and spleen is the correct option. This is due to the following facts:

Skin: It forms the outer covering layer of the human body which prevents the entry of the pathogens inside the body.

Lymph nodes: The lymph nodes are the parts of the lymphatic system. It consists of lymphocytes which fights against disease causing pathogens.

White blood cells: The white blood cells are the cells of the immune system which also fights against invading pathogens.

Spleen: The spleen is the spongy soft organ of the human body. It is located in the upper left part of the abdomen. It filters blood as a part of the immune system. The old blood cells as well as the intruding microbes are degraded inside the spleen this way spleen provides the immunity to the body.

Answer 2
Answer:

Answer:

I believe that the answer to this and your question is going to be: (A) skin, lymph nodes, white blood cells, and spleen.

Let me know if i got it right because it was right on my test.


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What weathering agent would cause rocks to be pushed to the earth's surface where they often crack or break? erosion gravity pressure changes temperature

Answers

Answer: pressure changes

Weathering is a natural phenomena in which the rocks are broken down into small pieces or sediments. It is caused by weathering agents such as wind, water, chemical, pressure and temperature.

Pressure changes is the weathering agent which would cause rocks to be pushed to the earth's surface where they often crack or break. The pressure could be applied by the superficial rocks or any other denser object.  

Pressure change is definitely ur answer :D

Special adaptations of parasitism

Answers

1) Body shape and Size
2) Simple Structures
3) H
ooks and Mouths to suck easier.
The the body size and shape of the parasite depends upon the space  available at the site of infection.

What are the pros and cons of AREAIL WOLF HUNTING?

Answers

Pros:
1. It would keep the wolf population under control
2. Their prey's population will increase
Cons:
1. Their prey would become overpopulated from not being eaten
2. The wolf population might be endangered if people keep on hunting them.
not to mention that along the food chain, if that prey is taken out, the plant population, or whatever that animal eats, will also go down, resulting in possibly MANY threatening population drops.

Why does a pregnant woman need more energy than a woman who isn't pregnant

Answers

To help the baby develop.

What is the relationship between the zooxanthellae and the hard coral, the remora and the manta ray, the tiger shark and the green sea turtle, and the dolphin and the school of trevallies and state why you chose that relationship. The relationships will be predation, competition, commensalism, or mutualism.

Answers

The Zooxantelae and the hard coral are in a mutualistic relationship. This means that both the hard coral and the algae benefit from this relationship. The coral gets extra nutrients produced by the photosynthesizing algae, and the algae gets protection and a stable environment by living inside the coral tissue.

The case of the remora and the manta ray is a perfect example of commensalism. In this type of relationship, one of the participants has benefits, and the other participant has no benefits, nor costs. The remora gets ''leftovers'' from the manta ray, and possible protection from larger predators and the manta ray does not benefit from this relationship.

The tiger shark prays on the green sea turtle, so this is a clear example of predation.

The trevallies and the dolphins are both apex predators, therefore they are competing against each other for pray.

Zooxanthellae and the hard coral-Zooxanthellae are the symbiotic algae that live within the hard or stony corals. The symbiotic relation is based on the coral's inability to generate sufficient amounts of food and the algaeā€™s ability for photosynthesis and converting chemical elements into energy. - mutualism

The remora and the manta ray-The benefits to the remoras and remora for living in such close association with their larger hosts are clear, but there is a debate about whether the manta rays receive a significant return in benefits from these relationships. - mutualism

The tiger shark and the green sea turtle - the turtle is eaten by the shark-predation

The dolphin and the school of trevallies-To feed, dolphins use a fast, surprise attack, and, unlike the hunting packs of trevallies, dolphins can successfully hunt alone. - predation

I hope that this is the answer that you were looking for and it has helped you.

What type of white blood cell produced antibodies ?

Answers

Lymphocyte (Cell B)

Explanation

A lymphocyte is a type of white blood cell that is part of the immune system.
hope this helps please brainlist