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MakcuM [25]
3 years ago
15

Dendritic cells and macrophages kill by ingestion and destruction of particulate matter in a process called phagocytosis. Dendri

tic cells and macrophages kill by ingestion and destruction of particulate matter in a process called phagocytosis. True False
Biology
1 answer:
Korvikt [17]3 years ago
6 0

Answer:

The statement is true

Explanation:

Hematopoietic stem cells give rise to myeloid progenitor and lymphoid progenitor and these two progenitors give rise to many immune cells. Dendritic cells are produced by both the progenitors and macrophages are produced by myeloid progenitor.

Both macrophages and dendritic cells are phagocytes. In phagocytosis, the foreing particles are injected by these phagocytes and they are destryoyed by the action of digestive enzymes present in these phagocytic cells.  

Macrophages are present in tissue and if they are present in blood they are called monocytes. Therefore the statement is true.

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1. In which way does the circulatory system rely on the skeletal system? (1 point)
german

Answer:

The correct option is Blood cells are produced in bone marrow.​

Explanation:

Skeletal system can be described as the system which comprises of all the bones and joints of an organism. The main function of the skeleton system is to provide support and protection to the organism.

The circulatory system can be described as a system which comprises of the heart, blood vessels and blood. This system is mainly involved in the transportation of substances like oxygen, nutrients etc in the body.

The skeletal system interacts with many other systems of the body and helps them perform their functions. For example, the skeletal system interacts with the muscular system so that a muscle can contract and relax.

The skeletal system interacts with the circulatory system by producing blood cells in the bone marrow. Red blood cells, as well as white blood cells, are produced by this process.

5 0
3 years ago
Predation and parasitism are the same thing. *<br> True<br> False
Butoxors [25]

Explanation:

I think it fulse

I am positive, good luck man.

4 0
2 years ago
TO INVESTIGATE AND COMPARE THE MOVEMENT OF TWO NAMED JOINTS IN THE HUMAN BODY
WINSTONCH [101]

Answer:

tendons and knees

Explanation:

the tendons are in the fingers, and they move to allow various actions such as holding things. the knees, allow us to walk, and join the forelegs and legs. their movement is different and they allow various actions, however, both are important.

8 0
3 years ago
What word is used to describe knowledge about the universe and the method of obtaining that knowledge?
Salsk061 [2.6K]
Science and the method is the scientific process.

Science is the pursuit of knowledge and discovery from and to describe the unknown.
<span>Scientific models, paradigms and theories are used widely by most scientist as to serve possible predictions, testing hypotheses, providing explicit answers and even saving human lives. These models are the simple paradigms that shapes and at the most provide clarity to the unknown. </span>
4 0
3 years ago
For science class, your teacher gives you and your partner a ball. She asks you to figure out a way to balance forces that you a
UkoKoshka [18]

Answer:

A.Both of you pull with equal force on opposite sides of the ball.

Explanation:

Balanced forces means that the total force or the sum of the force done on the object should be equal to 0 newtons or in other words, it should not be moving.

Force is defined as the push or pull on an object. For both people to balance out the forces on the ball while both applying a force, you need to do this from opposite sides.

You could either pull with equal forces on opposite sides of the ball or you can push with equal forces on opposite sides of the ball.

→ ball ←

← ball →

For the other choices, if you both push or pull on the same side, the ball would move that direction because there is no opposing force.

ball → →

If one pushes while the other pulls on opposite sides, it will move the direction you are pulling and pushing.

→ ball →

3 0
3 years ago
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