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
ExtremeBDS [4]
4 years ago
13

A. Measles generates a weak immune response that allows reinfection of hosts, and therefore does not easily evolve escape varian

ts.
b. Human influenza a virus evolves escape variants, resulting in a distinctive cactus-shaped phylogeny.
c. Measles experiences strong selection for escape variants, resulting in a phylogeny similar to a nonpathogenic species.
d. Human influenza a generates lifelong immunity, so there is no selection for escape variants.
Biology
1 answer:
Doss [256]4 years ago
3 0

The correct answers are:

b. Human influenza a virus evolves escape variants, resulting in a distinctive cactus-shaped phylogeny.  

All types of Human influenza viruses evolve to escape immunity induced by prior infections and vaccinations.

c. Measles experiences strong selection for escape variants, resulting in a phylogeny similar to a nonpathogenic species.  

As a result of measles infection, specific antibody and CD4 and CD8 T cell responses are generated and contribute to virus clearance and protection from reinfection.

 


You might be interested in
Plz help due today i really need help with this plz help meeeeeee
Tpy6a [65]
Well what I notice right here. He correct, because if the moon is completely dark that is called a new moon. Its fine really! The moon is away from the sunlight so if its rotating and its not from the sun its just a new moon. And the OTHER side is showing brightness. I hope this helpsss!
3 0
3 years ago
1. Which are the two important roles of the atmosphere?
Korolek [52]
The important role of the atmosphere is to supply oxygen, water, carbon dioxide and nutrients. It also protects all living things from extreme temperatures and radiation (protects us from harmful solar rays).
6 0
3 years ago
Symbiotic relationships between plant roots and fungi are called A. root nodules. B. tendrils. C. mycorrhizae. D. protists.
Shalnov [3]
The answer is C. mycorrhizae.
Hope that helped you.
7 0
4 years ago
Read 2 more answers
Which statement regarding organisms in this food web is correct
Butoxors [25]

Answer:

im not sure

Explanation:

there is no photo

5 0
3 years ago
Which of the following describes receptor-mediated endocytosis?
Anestetic [448]

Answer:

Receptor-mediated endocytosis is a form of endocytosis in which receptor proteins on the cell surface are used to capture a specific target molecule. The receptors, which are transmembrane proteins, cluster in regions of the plasma membrane known as coated pits.

Explanation:

hope this is the answer that you look for

5 0
2 years ago
Other questions:
  • Tv commercials promote reverse mortgages. other ads promote medications for high blood pressure, ed, immune system disorders, an
    10·2 answers
  • Osmosis causes water to move from areas of low salt concentration to areas of high salt concentration. The internal NaCl concent
    6·2 answers
  • Match the part of the cell to its correct function.
    6·1 answer
  • Scientists have changed the DNA of a type of cabbage so that it contains a tiny amount of poison from a scorpion’s tail. The poi
    9·2 answers
  • Guys please help me !!
    13·1 answer
  • Which statement concerning sexual reproduction is correct?
    5·1 answer
  • What would happen to the predators if there were too many prey
    11·1 answer
  • Define the following words:
    7·1 answer
  • Water power is a clean and renewable source of energy, but has many drawbacks. Which of the statement describes how hydropower d
    6·2 answers
  • ⭐Read the instructions above and then COMPARE the process of TRANSCRIPTION to the process of TRANSLATION. 1) How are they differ
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!