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
Mrac [35]
3 years ago
11

During winter break you came down with a horrible cold. Then, during spring break, you came down with another horrible cold! In

fact, you have probably had the common cold dozens of times in your life. If having a disease is one way to gain immunity, why have you not become immune to the common cold?
a. There are at least 200 different viruses that can cause the common cold, and they change over time.
b. Actually, you have developed immunity to the common cold and get sick only from bacterial infections.
c. Only non-specific immunity helps you fight the common cold, and specific immunity is not an effective defense against viruses.
d. The pathogen that causes the common cold attacks and kills memory cells, continually "erasing" the immune system's memory of it.
e. The rhinovirus that causes the common cold has no surface antigens and so can move through the body without being detected.
Health
1 answer:
hjlf3 years ago
6 0

the answer would be A

You might be interested in
Analyze the evolution of food and drug labeling in the United States and its impact. Your answer should bd at least 100 words.
HACTEHA [7]
Food and drugs are often viewed as safer then what they really are, wether it’s on the package or by hearing it from other people. often food seems healthy like strawberry icecream although it is not, people only think it is because there is a fruit in the name. People think you just get drugs from bad people but you can go and get them at ur local store these are called over the counter medication and because of this people often think they are safe to take because you need no prescription. the best thing to do is talk to a doctor before getting them. also plan a healthy diet or just watch what ur eating. i hope this helped :)
4 0
2 years ago
What are the best ways for you to study far a test please be honest and do plagiarize the internet
gtnhenbr [62]

it wont let me post it so i'll comment on the question box

7 0
3 years ago
I have to make up a game that includes movement and materials for pe over zoom class. And it only has to be one person for the g
Strike441 [17]
What what do you mean
7 0
2 years ago
Read 2 more answers
Mengapakah teknik cpr yang digunakan ke atas bayi berbeza dengan orang dewasa?​
ale4655 [162]

Answer:

si

Explanation:

si

3 0
2 years ago
Which kind of tumor grows slowly and is surrounded by membranes that prevent it from spreading from the original site? A. benign
Shkiper50 [21]

Answer:

The correct answer is a benign tumor.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is classical conditioning
    15·1 answer
  • You are a police officer on a routine patrol. As you pass by a neighborhood park, you notice a group of what appear to be 14 to
    13·1 answer
  • The cessation of the pumping of the heart
    8·1 answer
  • In which system does atherosclerosis develop
    7·2 answers
  • In the space below, list and describe two treatment options available for people with a serious drug addiction.
    10·1 answer
  • What does dynamic stretches mean?
    10·2 answers
  • According to the recent Deary study in Psychology and Aging, as individuals grow older, their _____ scores _____.
    6·1 answer
  • This is an area where items are opened separate from the sterile storage area.
    10·1 answer
  • Please I need your help and fast this is worth 15 point for my class!!
    13·1 answer
  • A universal human symbol that can be seen in a dream is a(n) __________.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!