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dlinn [17]
3 years ago
15

How is a secondary immune response different from a primary immune response?

Biology
1 answer:
borishaifa [10]3 years ago
6 0

Answer:

The secondary immune response is the immune response when the same antigen , memory cells that was encountered before is remembered and the immune system make antibodies to counter it.

Explanation:

There is a difference between the primary immune response and secondary immune response.

In the primary immune response occur when the immune system encountered an antigen for the first time which lead to the generation of memory cells and and the B cells with the T cells produce antibodies.

While the secondary immune response occur when the same antigen that was encountered the first time is encountered the second time and it lead to the stimulation of memory cells to produce more and high quantities of antibodies to fight foreign substances.

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Kingdom Animalia:
Mice21 [21]

Answer:

Eukaryotic

Prokaryotic

Unicellular

Multicellular

Autotrophic

Heterotrophic

Explanation:

-organism having nucleus

-organism without nucleus

-organism having one cell

-organism having many cell

-Organism that can make their own food

-Organism that cannot make their own food.

4 0
3 years ago
What general surgical techniques are necessary for a live donor kidney transplant?
Bogdan [553]
Kidneys for transplant can come from a living or a cadaver. Nephrectomy is the surgical removal of one or both kidneys. It is done by removing a healthy kidney from what you call a donor.They are usually to treat kidney diseases and injuries.
5 0
3 years ago
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One coiled spring is shown in the diagram. A teacher modeled part of a DNA molecular using two of these coiled springs. Which pa
romanna [79]

The teacher was most likely using the Backbone.

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3 years ago
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You dilute your bacteriophage for plating 10^-6. You mix 0.1ml of the bacteriophage dilution with 0.3ml of bacteria and plate wi
Blizzard [7]

Answer:

46 * 10^7 pfu/ml

Explanation:

Given -

Bacteriophage dilution = 0.1 ml

Volume of bacteria and plate with top agar  = 0.3 ml

Number of plaques = 46 pfu

Dilution (d) = 10^{-6}

Final concentration of phage stock is equal to

= \frac{pfu}{d*v}

Where pfu is the count of plaques

d is the dilution and v is the volume

Substituting the given values, we get -

\frac{46}{10^{-6} * 10^{-1}} \\= 46 * 10^7 pfu/ml

7 0
3 years ago
Wind power, water power (also called hydroelectricity), solar power, ethanol:
lora16 [44]
Wind power:

Advantages:

-Using wind as a source of power is very cost-effective. This is method is fuel free and the electricity harvested from wind farms is sold at a fixed price over a long period of time.

-Wind power is a clean fuel source. Using wind as a source of power prevents air pollution unlike power plants that mostly rely on fossil fuels which releases toxins into the hair causing both environmental and health problems.

-Wind power is a sustainable source of power since nothing can really stop it from being produced. Since this source of power relies on air, as long as there is air, energy can be harvested.

Disadvantages:

-Wind turbines are usually built in rural areas due to the size of them and the amount of space needed to build them. Because of this, they aren’t usually close to cities or remote locations where the energy harvested from them is most needed.

-Wind turbines can harmfully impact nature. Because of their height and size, many birds and other flying animals end up getting killed by the spinning blades connected to the turbine.

-Locations to build wind turbines may be hard to get due to competition with other things that may be of more importance on the land compared to wind farms.
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2 years ago
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