1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zloy xaker [14]
3 years ago
10

Explain how a vaccine that contains the cowpox virus can prevent smallpox?

Biology
1 answer:
FrozenT [24]3 years ago
5 0
Cowpox and Smallpox are very similar diseases. When cowpox is injected into the body in a form of a vaccine, a weakened germ cell of the disease enters the body. Since it is weakened, the body is able to easily fight it off by sending antibodies. After the antibodies kill off the germ cell, B memory cells hold the information of the threat, so if in the future, when the host contracts the virus/disease again, the body is able to counteract it faster than it did the first time around. So since Cowpox and Smallpox are very similar, when a person is first injected with the Cowpox vaccine, the B memory cell remembers information about Cowpox. Then when the host contracts Smallpox, the body sees Smallpox as the same thing as Cowpox, so the body can fight off Smallpox quickly, and thus preventing Smallpox.
You might be interested in
What is placebo and why is it used in some experiments
Hoochie [10]
A placebo is kind of a "fake" treatment but, typically the person receiving a placebo is unaware it has no medical effect on them so they believe they are feeling better. For example, a lot of anxiety meds are placebos and people don't know so their brain tricks them into thinking they are feeling less anxious. This could be used in experiments where a group believes they are affected to see how they react
6 0
3 years ago
Read 2 more answers
There are initially 1000 bacteria in a culture. The number of bacteria doubles each hour. The number of bacteria N present after
polet [3.4K]
There are several information's of immense importance already given in the question. Based on those information's the answer can be easily deduced. 
Initial number of bacteria in the culture = 1000
Number of bacteria after t hours = 1000 (2)^t
Then
1000 (2)^t = 50000
2 ^t = 50
t = 5.6

I hope the procedure is clear enough for you to understand.
3 0
3 years ago
How does meiosis I differ from meiosis II?
PIT_PIT [208]
Option D is correct, I believe that option A is wrong because in meosis 1 sister chromatids are together option B is wrong because homologous chromosomes are in meiosis 1 not 2 option C is wrong because 4 sex cells are produced in the process of meosis 2
6 0
3 years ago
ALOT OF POINTS MARKING POEPLE AS BRAINLIST
alexira [117]

both species had growth in number within the same time period

7 0
3 years ago
Read 2 more answers
List five reasons to explain why the leaf is specialized for its function.​
kirza4 [7]

Answer:

has transparent epidermis to allow light to pass for photosynthesis

has chlorophyll to trap sunlight energy needed in photosynthesis

has stomata to allow passage of water and gases

6 0
2 years ago
Other questions:
  • Would happen to the human population if endosperms were not a source of food.
    11·1 answer
  • 2. A structural difference between the trachea and esophagus that prevents the trachea from collapsing is the presence of:
    14·1 answer
  • • What characteristics are used to classify viruses?
    9·1 answer
  • In plants cellulose, which is a carbohydrate, is used for what? A) Structural support B) Store energy C) Promote growth D) Food
    7·2 answers
  • plate tectonics can help explain which of the following a. ocean currents b. weather systems c.land errosion d. trenches
    12·2 answers
  • AP Environmental Question, photosynthesis - please help!
    12·1 answer
  • Brainest for best response!
    13·1 answer
  • Kingdom classifications<br>​
    11·1 answer
  • A hive is an example of what type of skin eruption?
    12·2 answers
  • What are phytoplankton? (Select all that apply.)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!