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
madreJ [45]
3 years ago
13

Adrian caught a virus while staying with his grandmother. A few years later, his mother and sister got the same virus. This viru

s could spread through touch and direct contact. However, Adrian did not contract the virus this time, even though he was living with his mother and sister. Why did he not get sick?
Adrian’s adaptive immunity remembered the antigens from the virus and gave him lifelong immunity to it.

Adrian’s innate immunity remembered the antigens from the virus and gave him lifelong immunity to it.

Adrian’s skin layer recognized the antigens and attacked them, which prevented the occurrence of the virus again.

Adrian’s innate immunity identified antibodies specific for the virus and targeted them against the antigen.

Adrian’s adaptive immunity produced a higher amount of specific antibodies for the antigen, preventing the virus.
Biology
2 answers:
arlik [135]3 years ago
4 0
Adrian’s adaptive immunity remembered the antigens from the virus and gave him lifelong immunity to it.
Verizon [17]3 years ago
3 0
  • Adrian did not contract the virus this time, even though he was living with his mother and sister<em> because Adrian’s adaptive immunity remembered the antigens from the virus and gave him lifelong immunity to it.</em>
  • The adaptive immune system consists primarily of the lymphocytes.
  • Whenever the body encounters the antigen, the lymphocytes of the adaptive immunity are activated to combat the infection and in this process, they also produce memory cells.
  • These <em>memory cells</em> protect the host from the infection from the same antigen in the future.
  • Due to the memory cells produced during the first viral infection, Adrian is protected from the infection after being exposed to the virus again.

You might be interested in
Please help me.
ahrayia [7]

Answer:

Primary producers

Explanation:

In any food web, energy is lost each time one organism eats another. Because of this, there have to be many more plants than there are plant-eaters. There are more autotrophs than heterotrophs, and more plant-eaters than meat-eaters.

  this is just nonsense

3 0
3 years ago
Fresh raspberry contains 80% water. dried raspberry contains only 20% water. what weight of dried raspberry can you get from 36
adell [148]

There 2 ways to solve this

1-      Directly :

80% of water in the fresh berries è 20% of water in the dried berries

36 Ibs of the fresh berries è X Ibs of the dried berries

X = \frac{36 * 20}{80}<span> = 9 Ibs</span>

 

<span>2-      </span>If you do not understand the first method, the second one is more explicit:

First, we gonna calculate the weight of the berries without water (dehydrated):

<span>36 * 80% = 28.8 Ibs    (of water in the berries)</span>

Then:

<span>36 – 28.8 = 7.2 Ibs (of completely dehydrated berries)</span>

 

Next, we gonna add 20% of water in the dehydrated berries:

X (total weight of dried berries) è 100%

7.2 Ibs of dehydrated berries è 80%

X = <span>  </span>\frac{7.2 * 100}{80}   = 9 Ibs

4 0
3 years ago
A virus requires a host cell in order to?
Ad libitum [116K]
Infect to reproduce
Hope it helps you
6 0
3 years ago
Your grandmother is very impressed with the size of the tomatoes from a plant that she planted in her garden. These tomatoes are
marusya05 [52]

Answer: The blank can be filled correctly by "if the seeds contain the gene or allele responsible for large size of the tomatoes"

Explanation:

In plants also, characters or traits of characters are defined by genes. Different alleles produce different traits of the same character.

For example, in classic Mendelian genetics, T was the allele responsible for tall plant trait while t was the responsible for dwarf trait.

Similarly, there would be a gene(s) responsible for size of the tomatoes. In addition, seeds are the products of sexual reproduction of plants. So, they may carry genetic combination different from parent plants (due to meiosis, crossing over, independent assortment, et cetera).

So, if the seed contains the gene or allele responsible for large size of tomatoes then only they will produce same kind of tomatoes.

4 0
3 years ago
Describe why populations increase and decrease.
Masja [62]

Answer:

There are three components of change: births, deaths, and migration. The change in the population from births and deaths is often combined and referred to as natural increase or natural change. Populations grow or shrink depending on if they gain people faster than they lose them.

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • All species descended from a what are part of a monophyletic group
    14·1 answer
  • How do plants help clean and renew air
    11·1 answer
  • The origin of the universe remains a question. The most accepted theory, that suggests our universe started as a hot, dense, com
    12·2 answers
  • What is the probability that a seed from a parent plant of genotype Rr will carry the r gene
    11·2 answers
  • 5. What causes a thunderstorm to end?
    14·1 answer
  • The swim bladder does all of the following except ____________________.
    15·1 answer
  • Which of these statements is true about autotrophs, but not heterotrophs?
    15·2 answers
  • Which category is the largest (most diversity)?
    10·1 answer
  • Which of the choices below is the best comparison of commensalism with parasitism?
    5·1 answer
  • Giving everything!!!!!!!!! Plzzzz help!!!!!!!!!!! ASAP!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!