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Karolina [17]
3 years ago
13

The immune system tries to stop invasions by foreign agents by either killing cells directly or by

Biology
2 answers:
salantis [7]3 years ago
7 0
Directly The immune system is designed to defend the body against foreign or dangerous invaders. Such invaders include

Microorganisms (commonly called germs, such as bacteria, viruses, and fungi)

Parasites (such as worms)

Cancer cells

Transplanted organs and tissues

To defend the body against these invaders, the immune system must be able to distinguish between

What belongs in the body (self)

What does not (nonself or foreign) normal immune response consists of the following:

Recognizing a potentially harmful foreign antigen

Activating and mobilizing forces to defend against it

Attacking it

Controlling and ending the attack

If the immune system malfunctions and mistakes self for nonself, it may attack the body’s own tissues, causing an autoimmune disorder, such as rheumatoid arthritis, Hashimoto thyroiditis, or systemic lupus erythematosus (lupus).
Oliga [24]3 years ago
7 0
Some immune cells kill it by phagositos. Some of them(T cells,B cells) kill them via producing antibodies
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When a wave is refracted,
fgiga [73]

Answer:

dis Question tripin

Explanation:

8 0
3 years ago
How are energy inputs and outputs related to chemical reactions
GREYUIT [131]

The large number of areas covered by the chemical energetics can be explained by the different forms in which chemical energy can be released: heat and combustion work, electrical energy in electrochemistry, radiant energy in chemiluminescent systems.

The chemical energy provided by a reaction reflects the energy balance associated with the electronic modifications suffered by the species involved.

From an energy point of view, a chemical reaction between molecules can be schematized in two stages. The first requires a supply of energy and corresponds to the rupture of the bonds of the reactant molecules with release of the atoms which constitute them.

The second releases energy and concerns the creation, by recombination of these atoms, of new bonds entering the structure of the reaction molecules.

As a general rule, the energy released in the second stage is greater than the first. We are talking about exothermic reaction. The difference between these two energies (reaction enthalpy) measures the amount of chemical energy transferred to the external environment.

It is conceivable that this quantity translates, not only the number, but also the strength of the connections involved.

6 0
3 years ago
HEY PLEASE HELP ME ASAP I WILL GIVE YOU BRAINLEST!!!
satela [25.4K]
Okay what u want me to help you with
4 0
3 years ago
Read 2 more answers
How do mutations effect individual traits?
Lostsunrise [7]
Mutations can affect the coding of "base pairs" in the chromosome of an individual by various means like:
1) by Deletion
2) by Duplication
3) by Translocation
4) by Inversion

After all that changes, codes deviates from normal information & can affect individual in negative way. In that manner, Mutations affect individual traits.

Hope this helps!
6 0
3 years ago
Most coastal areas on Earth experience two high tides and two low tides every lunar day. What is a lunar day? Our days on Earth
ahrayia [7]

The correct answer is - C) 5:35 PM Friday.

The low tides occur twice in a lunar day, thus they are diurnal. The low tides appear when the Moon is between that point of the planet and the opposite of that point of the planet, thus in between, which is happening twice, on opposite parts of the planet.

Since the lunar day lasts for 24 h 50 m, we should just divide it in two, thus get 12 h 25 m. Than we should add the 12 h 25 to the time when one of the low tides appeared, which is 5:10 AM, so we will get 5:35 PM.

The low tides appear because the Moon is pulling the water upwards with its gravitational pull above the place where it is, so the side parts of the planet have their waters dragged away,thus resulting in the retreating of the water, known as low tide.

3 0
3 years ago
Read 2 more answers
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