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
nlexa [21]
3 years ago
14

Sam came home from school with a cold caused by a virus and his sister, Ana, caught it from him. Sam got well and went back to s

chool. A few days before Ana got well, Sam came down with a cold again. Their mother said that Ana had given the cold back to Sam. How likely is it that their mother is correct, and what does it mean for Ana's chances of getting sick again?
A. If Sam only had a mild infection of the virus he might not have acquired immunity to it and could catch it again, as could Ana if she had a mild infection.

B. Sam could not get sick with the same virus again since he has acquired immunity to it, so he must have a different virus which Ana could catch.

C. If Sam's body did not store up enough antibodies to the virus he could get sick with it again, as could Ana if the same thing happened to her.

D. Sam could have picked up another virus at school as well as catching the same one from Ana again, so Ana could get sick again with either virus.
Biology
2 answers:
IRINA_888 [86]3 years ago
5 0
<span>~Hello there!

Your question: Sam came home from school with a cold caused by a virus and his sister, Ana, caught it from him. Sam got well and went back to school. A few days before Ana got well, Sam came down with a cold again. Their mother said that Ana had given the cold back to Sam. How likely is it that their mother is correct, and what does it mean for Ana's chances of
getting sick again? 

Your answer: Acquired immunity, he must have picked picked up a different disease virus so Ana can get sick again.

The answer is option A.

Hope this helps~



</span>
Tatiana [17]3 years ago
4 0

Answer:

If Sam only had a mild infection of the virus he might not have acquired immunity to it and could catch it again, as could Ana if she had a mild infection.

Explanation:

You might be interested in
What is the diploid chromosome number for your karyotype
LekaFEV [45]

Answer:

For example, a haploid human nucleus (i.e. sperm or egg) normally has 23 chromosomes (n=23), and a diploid human nucleus has 23 pairs of chromosomes (2n=46). A karyotype is the complete set of chromosomes of an individual.

Explanation:

5 0
3 years ago
Water molecules attract other water molecules and tend to pile up via? Adhesion, vaporization, dissociation, cohesion
lyudmila [28]
Cohesion is water sticking to water. adhesion is water sticking to another thing, think of it as you're adding something to the water molecules. add-hesion
3 0
3 years ago
after the brain receives information from the body's sensory receptors, what is the next step in responding to this information?
Bumek [7]

The sensory receptors refer to the portions of the nervous system, which sense variations in the external or internal surroundings. The sensory input can be in various forms, comprising taste, pressure, light, sound, pH of blood, or levels of hormones, which are transformed into a signal and are transmitted to the brain or spinal cord.  

In the sensory centers of the brain, the barrage of information is integrated and a response is produced. The response, that is, a motor output refers to a signal conducted towards organs via motor neurons, which then transforms the signal into some kind of action, like changes in heart rate, movement, discharge of hormones, and others.  


7 0
3 years ago
Read 2 more answers
Which organism is most specialized
gregori [183]

Answer:

The answer is a human.

Humans are multicellular eukaryotic organisms

4 0
3 years ago
Read 2 more answers
describe how the theory of evolution is supported by fossils, comparative anatomy, comparative embryology, biogeography, and mol
Zolol [24]

Answer: The theory of evolution supports fossils

Explanation:

By looking at fossils it shows how that species evolved

8 0
3 years ago
Other questions:
  • Three organs that are part of the digestive system even though food does not pass through them
    15·1 answer
  • What is the purpose of a cell wall
    11·1 answer
  • What body tissue is routinely transplanted?
    10·2 answers
  • _____ cells form the body's skin, inner linings, and glands.
    12·2 answers
  • The development of specific plant structures in particular locations is called pattern formation. Events in a plant's early deve
    6·1 answer
  • What is DNA? What is RNA?​
    6·1 answer
  • What is the sequence of amino acids formed from this gene?
    6·1 answer
  • Birds are the main predators of these beetles; they hunt the beetles by sight and pick them off the tree bark where they feed. A
    12·1 answer
  • The Earth remained a frozen snow ball until carbon dioxide levels in the atmosphere increased. Why did carbon dioxide from the v
    9·1 answer
  • What is the part of the flower with the pollen in it?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!