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yulyashka [42]
3 years ago
5

TIMMER HELP PLLEASE Which of the following is not a benefit to using scientific models? a. Scientific models help scientists gai

n a better understanding of concepts and events. b. Scientific models aid in communication about concepts and events. c. Scientific models are never subject to change. d. Scientific models can help answer scientific questions. Please select the best answer from the choices provided A B C D
Biology
2 answers:
SVETLANKA909090 [29]3 years ago
8 0

Answer:

C!

Explanation:

Lelu [443]3 years ago
6 0

Answer:

c. Scientific models are never subject to change

Explanation:

Scientific models can change when new discoveries are made

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natita [175]
This is a question that you would have to answer

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3 0
3 years ago
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
matrenka [14]
-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>
8 0
3 years ago
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The two dogs sitting here are already poor and ignorant

8 0
3 years ago
HELP ME PLEASE!!!!!!<br><br> What are the characteristics of life?
Leno4ka [110]
Responsiveness to the environment;
growth and change;
ability to reproduce;
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maintain homeostasis;
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passing traits onto offspring.
7 0
3 years ago
Which of the following enzymes in an RBC breaks H2CO3 down to water and carbon dioxide?
Fiesta28 [93]

Answer:

Carbonic anhydrase

Explanation:

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