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
UNO [17]
3 years ago
6

Calculate the frequency of b cells specific for antigen a on day 36 if the antibody concentration on day 36 is about 8 × 103. (f

or practice doing calculations with proportions, try this exercise. for practice doing calculations with numbers written in scientific notation, try this exercise.)
Biology
1 answer:
matrenka [14]3 years ago
8 0
-The number of B cells producing the antibody is proportional to the concentration of that antibody.

-On day 16, one out of  100000 B cells are specific for antigen A
\frac{1}{100000} = 1 x 10⁻⁵ B cells

- on day 16, Antibody concentration is  2 × 10¹= 20 Antibodies
- on day 36, antibody concentration 8 × 10³.= 8000

20 antibodies ------------ 1 x 10⁻⁵ B cells
8000 antibodies--------------x

x= (8000 x 1 x 10⁻⁵)/ 20
x= 4x10⁻³ or 1 in 250 are <span>B cells specific for antigen A</span>
You might be interested in
PLEASE HELP ASAP!!!!
STALIN [3.7K]

Answer:

lipids is nitrogen nucleic acids is phosphorus

Explanation:

I guessed but I am not sure

7 0
3 years ago
Why is mitosis important to your body
Hitman42 [59]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ Mitosis is important for our body because mitosis makes our bodies grow and develop. Without mitosis, we wouldn't grow and our cells wouldn't be repaired or replaced.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

8 0
3 years ago
Read 2 more answers
Maintaining an internal body temperature is one of the key components to maintaining homeostasis. ____________________ involves
rusak2 [61]
The answers could be vasodilation and vasoconstriction (respectively) if that’s what u are studying.
3 0
3 years ago
How does weathering help to create soil?
liberstina [14]
Weathering breaks down and loosens the surface minerals of rock. Hence, the broken rocks are transported to another place where it decomposes and forms soil. Therefore weathering is important for soil formation
7 0
3 years ago
9. Because the sun heats sections of the Earth more or less, and hot
Nadya [2.5K]

Answer:

This shows the interaction between the earth and sun.

Explanation:

  • There is a variation in the amount of heat that reaches the different latitudes as the interaction between the sun and earth which firms different angles of incidence on the surface.  
  • The rays of the sun are more concentrated in mid latitudes that is the tropics and are slanting towards the poles this due the tilt in axis of earth.  
  • This variation lads the warm air to rise and reach the poles and similar the cold polar air reaches the tropics and develops a cycle of convective cells.  This leads to a latitudinal balance in temperatures.
3 0
3 years ago
Other questions:
  • Which two hypothesis can be supported with quantitative data?
    14·1 answer
  • What is the water potential of a .20 M solution of sucrose in an open beaker at 23 degrees Celsius?
    12·1 answer
  • A tiny skeleton found in chile might look like a alienher gense dont what is the central idea
    11·1 answer
  • What is the primary function of a fruit?
    8·1 answer
  • Imagine that you are asked to measure the rate of respiration for a 25 g reptile and a 25 g mammal at 10 degrees Celsius. Predic
    8·1 answer
  • A "code" for organisms genetic makeup or allele combinations; this is found in our DNA/chemicals. A.phenotype B.Genetics C.Genot
    11·1 answer
  • I need 9 examples of Egg-Retaining Animals.
    10·1 answer
  • ANYONE KNOW THIS?? PLZ LMK ASAP!!
    15·1 answer
  • What is the total magnification with each objective?
    8·1 answer
  • 1. Why do most enzymes have Km values the same or similar to the concentration of their substrates This is necessary for coopera
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!