Order Now

1. Which of the following is t

Uncategorized
1. Which of the following is true about the clonal selection theory?
Select one:
a. An antigen selects certain B cells to produce a clone of plasma cells
b. An antibody stimulates the multiplication of B cell antigens against it
c. T cells select those B cells that should produce antibodies regardless of antigens
d. T cells suppress all those B cells except the ones that should divide and multiply
e. An antibody selects certain B cells to produce a clone of plasma cells
 
2. All of the following are functions of the lymphatic system except it does not _(blank) _.

Select one:
a. Absorb excess fluid and return it to the bloodstream
b. Absorb fats
c. Produce lymphocytes
d. Defend the body against pathogens
e. Transport gases throughout the body
 
3. When a macrophage engulfs a pathogen, a piece of the pathogen is then presented on the macrophage’s surface in the _ (blank) _ protein.

Select one:
a. Self-antigen complex
b. Immunoglobulin complex
c. Histamine complex
d. Cell-mediated complex
e. Major histocompatibility complex
Continue to order Get a quote

1. Which of the following is t

Uncategorized
1. Which of the following is true about atmospheric pressure? *
1 point
A)None
B) Atmospheric pressure decreases in a regular way as one progresses from lower to higher altitudes
C) Atmospheric pressure increases in a regular way at higher altitudes
D) Atmospheric pressure increases when one progresses from troposphere to stratosphere

2. The largest gaseous component of the atmosphere is

A) nitrogen
B)carbon dioxide
C)water vapor
D)oxygen

3. Ozone is
A) none
B) filters harmful UV-radiation in the stratosphere
C) desirable in the troposphere
D) an undesirable pollutant in the stratosphere.

4.Which of the following characteristics of the atmosphere is crucial in protecting life on earth?
A) Production of O2 by plants

B) Reducing temperature extremes between day and night.

C) Acid-base neutralization reactions taking place in the troposphere

5. Existence of O3 in the troposphere
Harmful UV-radiation is blocked by ozone layer in the

A) stratosphere
B) thermosphere
C) mesosphere
D) troposphere
6. The high temperature in the thermosphere is due to
A) the absorption of intense solar radiation by oxygen molecules (O2).
B) the absorption of intense UV-radiation by ozone
C) existence of larger concentration of gaseous molecules which can absorb radiant energy than the other layers
D) all

7. Free radicals are highly reactive due to the reason that *

A. they are free to move in the atmosphere

B. the unpaired electron of a free radical has a strong tendency of pairing.

C. they contain oxygen and hydrogen atoms which are highly reactive

D. a & b

8. Which of the following atmospheric species is not an unstable species? *

A. free radicals
B. None
C. ions having electrically-charged atoms
D. Electronically excited molecules

Continue to order Get a quote

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more