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
leva [86]
3 years ago
14

Select all of the statements that apply to scarlet fever, to test your understanding of skin diseases caused by streptococcus py

ogenes. most common mode of transmission is droplet or direct contact virulence is due to the action of erythrogenic toxin virulence is due to the action of an exfoliative toxin it is characterized by a vesicular rash it can be prevented with live attenuated vaccine
Biology
2 answers:
Naddika [18.5K]3 years ago
4 0

Answer:

Scarlet fever or scarlatina is a bacterial infection usually caused by  <em>Streptococcus pyogenes</em><em>.</em>

This bacteria can be found in the mouth and nasal passage of human beings.

They produce poison or toxins which produce bright red rashes on the body.

Other symptoms may include Pastia's lines, strawberry tongue, fever, chills, red, sore and swollen throats, et cetera.

The infection can spread when a healthy individual comes in direct contact with infected droplets, mouth, nose, or eyes of an infected individual.

Virulence factors include lipoteichoic acid and M protein (attachment), hyaluronic acid capsule (inhibits phagocytosis), erythrogenic toxins (causes rash) et cetera.

The treatment is usually done with the help of antibiotics and other medicines to treat symptoms.

Presently, there is no vaccine available for this fever.

Thus, the correct statements would be:

  • caused by <em>Streptococcus pyogenes</em>.
  • most common mode of transmission is droplet or direct contact
  • virulence is due to the action of erythrogenic toxin
  • it is characterized by a vesicular rash

polet [3.4K]3 years ago
3 0
Scarlet fever or scarlatina is an infection for those people having sore throat. It's symptoms usually is a bright red rash with fever as well as sore throat. It affects children from 5-15 years old. It is cause by the streptococcus pyogenes. It's mode of transmission is droplet and direct contact and the virulence is cause by erythrogenic toxin.
You might be interested in
A typical fungi thallus includes many filamentous BLANK-1 that combine to form a BLANK-2 that grows underground, and produce a B
vitfil [10]

Answer:

hypha

mycelium

fruiting body

spores

Explanation:

<em>A typical fungi thallus includes many filamentous hypha that combine to form mycelium that grows underground, and produce a fruiting body reproductive structure that produce spores that disperse on the wind to new habitat.</em>

Fungi body are generally made up of hypha, a network of which forms the mycelium. The mycelium grows underground within the substrate and occasionally bring out fruiting bodies which bear the sporangium containing the spores. The spores act as agent of dispersal and are used to form new organisms when the conditions are right.

3 0
3 years ago
Which of the following serves as the cell's boundary from its environment
Bad White [126]
B. Cell membrane
Remember cell membrane is the structure aka “wall of the house” is the clear boundary between the cells internal and external environments:))
Hope this helps
4 0
3 years ago
In a plant, leaf color and leaf shape are controlled by two linked genes Leaves of the wild-type plant are red. A recessive muta
Brrunno [24]

Solution :

Red is dominant over the white leaves and pointed is dominant over smooth.

Red = R ,    white = r

Pointed = P ,   smooth = p

Red, pointed x white,smooth ------ Parents

RRPP                 rrpp

RP                      rp  ----------------- Gametes

         RrPp    -------- $F_1$

  (red, pointed)

When this $F_1$ is test crossed,

RrPp  x  rrpp     ----  $F_1$ test cross

Gametes   → rp

RP ---------- RrPp - red, pointed - 36 parental type

Rp ---------- Rprp - red, smooth - 14 re- combination

rP ----------- rrPp - white pointed - 10 re- combination

rp ----------- rrpp - white, smooth - 40 - parental type

                                    Total =   100

As this ratio is deviating from 1:1:1:1, it indicated the two genes are linked.

Linkage strength = percentage of crossing over = map distance between the genes.

Percentage crossing = recombination frequency = percentage of recombination.

Recombination frequency $=\frac{\text{total no. of recombination}}{\text{total no. of progeny}}\times 100$

                                         $=\frac{14+10}{100} \times 100$

                                         = 24 %

                                        = 24 map units

4 0
3 years ago
Which of these geological features would most likely occur where tectonic plates move away from each other?
Ahat [919]

Hot spot volcano, hope this helps

8 0
2 years ago
Why is the cell membrane so important?
Nady [450]

C, because it protects the cell from the outside environment

3 0
2 years ago
Other questions:
  • does an allele bringing dominant mean that it is better than the recessive allele? justify your response
    12·1 answer
  • What is it called when you interpret the things you observe
    6·2 answers
  • Which of these is an environmental change that occurs rapidly?
    13·2 answers
  • What is a darker contor line usaly every fifth line?
    15·2 answers
  • What three ways do plates move?(tectonic plates)
    8·1 answer
  • How many oxygen atoms are in one unit of the compound Ba(0H)2
    11·1 answer
  • Answer this question properly​
    12·1 answer
  • The French biologist Lamarck hypothesized that “organisms could acquire traits making them better adapted to their environment a
    6·1 answer
  • HELPPPPPPPPPPPPPPPPPPPP
    7·2 answers
  • What is a nonrenewable resource?(1 point)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!