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
Marina CMI [18]
3 years ago
13

28. Which of the following statements are accurate?

Biology
1 answer:
padilas [110]3 years ago
8 0

Answer:

D. Viruses can avoid activating the adaptive immune system if they do not change their surface antigens once they have been recognized by T and B cells.

E. People who were affected with the smallpox virus before cowpox virus were naturally immune to the smallpox virus because the viruses shared some common antigens and the memory cells that recognized cowpox antigens responded to smallpox antigens as well.

F. Helper T cells can kill cells that are infected with viruses and Cytotoxic T cells are known to activate B cells.

You might be interested in
A group of related classes of plants is a
ollegr [7]
<span>A group of related classes of plants is called a </span>phylum

8 0
3 years ago
Cell cycle is divided into two basic phases. What are they??<br><br>take 50 points​
marta [7]
Answer: The cell cycle has two major phases: interphase and the mitotic phase (Figure 1). During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated, and the cell divides.

Explanation: Have a good day
5 0
3 years ago
Read 2 more answers
How biology is related with chemistry​
Vlad [161]

Answer:

<h3>As they both are the branches of science...</h3>
3 0
3 years ago
The process of _______ is modeled in the plant cell diagram seen here.
GREYUIT [131]

seen where i didn't find that

7 0
3 years ago
Read 2 more answers
which of the following does not occur during the embryonic stage? a. the bones become fully developed. b. the tail begins to rec
abruzzese [7]

Answer;

The bones are fully formed

-This dose not occur during the embryonic stage.

Explanation;

-Embryonic stage is a stage of development which is a period after implantation, during which all the major organs and structures within a growing fetus are formed. For example, the tail begins to recede, the heart, brain, and spinal cord develop and also the eyes and ears begin to form among other events.

-The embryonic stage lasts from implantation up to around 8 weeks from the time of conception.

4 0
3 years ago
Read 2 more answers
Other questions:
  • When there are different amounts of a substance on either side of the cell membrane, (a) _____ gradient results.
    7·2 answers
  • Which characteristic do Venus and Earth share?
    13·2 answers
  • Which of the following statements best describes a suspension feeder?
    15·1 answer
  • What is the name of the processes that change the genetic information into each new form?
    8·1 answer
  • One modern idea on the origin of life states that simple organic molecules such as water vapor, carbon dioxide, nitrogen, methan
    13·1 answer
  • Elias and Jon conducted the same experimental procedure but got very different results. Each student selected test subjects who
    14·1 answer
  • THIS QUESTION IS DUE IN 10 MINUTES I NEED HELP PLEASE ASAP
    12·2 answers
  • Neutral mutations can have a significant effect on the organism try or false
    5·1 answer
  • In kolhbergs conventional stage of moral development moral decisions are based on?
    14·1 answer
  • Which of the following statements correctly describes a difference between bacterial cells and animal cells?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!