All categories

3 years ago

Why are jenner's vaccine superior to previous methods for conferring resistance to smallpox?

Biology

1 answer:

VLD [36.1K]3 years ago

6 0

Answer:

The risk of disease transmission is drastically low with his method, compare to the previous method with great tendency of transmitting diseases,which were lethal to the recipient.

Explanation:

He had noticed that milkmaids were only affected with cowpox,but are not affected with small pox.Thus he reasoned that they must have immunity against small pox.

Through his crude methods he extracted pus from a milkmaid who carried the virus for cowpox,and inserted this into the arm of a young through the opening created. After latent period of days he exposed the boy to the smallpox,and surprisingly he was not infected,thus the boy developed immunity to this virus which was related to the virus injected.

Thus he was able to develop immunity against the related diseases.

Besides he observed that this boy did not show symptoms of any other diseases or infection.

You might be interested in

10 POINTS !!!!!!!!!!!!!!!!!

Ann [662]

Answer:

Two environmental factors that influence the shape of proteins are pH and temperature.
The term for when the shape of a protein is altered, is denaturation. The impact is has on the proteins ability to function, is that is changes and loses their function.

I hope this helps!

3 0

3 years ago

Cells within organisms often need to communicate and work together to carry out life's processes. Which of the following enables

LenKa [72]

There are many different ways that cells can connect to each other. The three main ways for cells to connect with each other are: gap junctions, tight junctions, and desmosomes. These types of junctions have different purposes, and are found in different places.

7 0

3 years ago

Which of the following organic compounds is the main source of energy for living things?a.carbohydratesc.nucleic acidsb.lipidsd.

Alex Ar [27]

Well, carbohydrates burn and release energy. Nucleic acids give identity (like DNA, RNA). Lipids also give energy, but it's more difficult (they must be first turned into carbohydrates first). Proteins are building blocks for the cells.
Now, knowing all of this should make it easy to choose the correct answer :)

3 0

4 years ago

Read 2 more answers

What are 4 effects of global climate change

m_a_m_a [10]

Answer:

I think I can help you.

Explanation:

I think I can help you.

answer 

the 4 effects of global climate change are as follow:

1.due to more factories.

2.due to pollution.

3.due to air pollution.

4.due to water pollution.

3 0

3 years ago

PLS PLS PLS ANSWER NOWWWWW

Ilia_Sergeevich [38]

Answer:

D.aerobic respiration of lactic acid

4 0

3 years ago