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ololo11 [35]
3 years ago
8

M protein is produced by

Biology
1 answer:
egoroff_w [7]3 years ago
4 0

Answer:

The correct answer will be option- <em>Streptococcus pyogenes.</em>

Explanation:

M protein is an important virulence factor which is produced and expressed on the surface of <em>Streptococcus pyogenes. </em>

This protein plays important role in the bacterial infection like adherence to epidermal keratinocytes, resistance to phagocytosis,  invasion of epithelial cells and microcolony formation.

The M-protein is a α-helical coiled structure protein which consists of the four distinct regions (A–D) in which  A-region in the N-terminal is highly variable.

Thus,  option- <em>Streptococcus pyogenes</em> is the correct answer.

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the biological species concept proposed by states that a biological species is a population whose members can interbreed and pro
jek_recluse [69]

The biological species concept proposed by Mayr states that a biological species is a population whose members can interbreed and produce fertile offspring.

<h3>What is the biological species concept?</h3>

The biological species concept is a model used in biology sciences to delimit a species through mating fertile features of the individual that belong to such species.

This concept (biological species concept) was proposed by Ernst Mayr to understand how each species represent a functional unit.

In conclusion, the biological species concept was proposed by Mayr and states that a biological species is a population whose members can interbreed and produce fertile offspring.

Complete question:

Fill the blank. The biological species concept proposed by ______ states that a biological species is a population whose members can interbreed and produce fertile offspring.

Learn more about the biological species concept here:

brainly.com/question/985104

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4 0
2 years ago
Explain why fossil evidence is consisten<br> with the scientific theory of evolution.
-BARSIC- [3]

Answer:

This supports Darwin's theory of evolution, which states that simple life forms gradually evolved into more complex ones. Evidence for early forms of life comes from fossils. By studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth.

5 0
3 years ago
A valid scientific investigation must be able to be
san4es73 [151]
Answer: in order for a scientific investigation to be valid A hypothesis must be tested throughout a Scientific investigation that can gather evidence and support it.

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Hope this helped!
7 0
3 years ago
A survey that includes only people who choose to respond is susceptible to
sammy [17]

Answer:

I'm pretty sure its B. voluntary-response bias

5 0
3 years ago
HELP ME WITH THIS 2 PLZ
Aliun [14]
The first option for 1 and the second option for 2
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