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
Ket [755]
3 years ago
12

Explain why mutation and natural selection make developing new flu vaccines every year necessary

Biology
1 answer:
Serhud [2]3 years ago
7 0
Let's just say that everyvyear, many people either get the vaccination, or the flu. These people are left immune to the strain of flu that they were vaccinated/infected with so the number of people who can get and pass on that form of flu (think of these people as that flu strain's "habitat") is reduced. If some of that flu mutates sufficiently that the immune systems of those previously infected vaccinated people no longer recognize it, then it's habitat is expanded back to the original size again.

Hope this helped :)
Have a great day
You might be interested in
North Carolina ranks second in production of Christmas trees in the United States. Scientists in North Carolina use living cells
Snowcat [4.5K]
B, because it's not an advantage for something to be expensive and time consuming
6 0
3 years ago
Read 2 more answers
Which is an example of the bottleneck effect? Green beetles move to a new location and build a new colony there. Green beetles s
hram777 [196]
A bottleneck is very narrow, which means that only a portion of the contents of the bottle cat get out (at the time). 

From this effect, people use the word bottleneck when only a few individuals of a population survive: 

the answer is: I<span>nsecticide spraying eliminates all but a few of the beetles on an island.</span>
6 0
3 years ago
How does heat affect enzymes?
liraira [26]
Raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. However, extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working. pH: Each enzyme has an optimum pH range. ... Extreme pH values can cause enzymes to denature.
4 0
3 years ago
Read 2 more answers
Which of the following is a change from a more condensed to a less condensed state of matter?
777dan777 [17]
By the term "condensed", this refers to the density of a state of matter. As a rule of thumb, solids are the most dense because their molecules are very close together. Next is liquids because they flow compared to solids. The least dense are gases. Therefore, a change from a more condensed state to a less condensed state is boiling (liquid to gas).
7 0
3 years ago
Reproductive cell or sex cells are called
enot [183]
I agree with the person above - reproductive cells or sex cells are called gametes. 
When it comes to women, these gametes are called an ovum, or an egg, and when it comes to men, gametes are called sperm. 
8 0
3 years ago
Read 2 more answers
Other questions:
  • The diagram shown reprsents the input and output of a process performed by the chloroplast of a cell. which substance is most li
    13·2 answers
  • Which of the following is not a factor influencing preventive measures used to combat the spread of disease? A. Antibiotics B. S
    13·2 answers
  • Which of the following best compares mosses and ferns?
    12·2 answers
  • Organisms of two different species interact. One organism is not significantly affected, while the other benefits.
    10·2 answers
  • One of the criteria in the prompt above has been mis-typed. Correct the erroneous phrase so evolution will NOT occur.
    11·2 answers
  • I need help. Please helpppppppp
    7·1 answer
  • Lemon trees receiving the most water produced the most lemons
    15·1 answer
  • If an organism didn't have DNA, it would be missing which sign of life?
    15·1 answer
  • A student is conducting a breeding experiment. She knows the genotype of one parent plant and concludes that she can use a Punne
    13·1 answer
  • Which is one of the primary goals of the Human Genome Project? to cure all diseases that affect humans to sequence the genome of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!