Suggest how whooping cough spreads from person to person​

Answers

Answer 1

Answer:

People with pertussis usually spread the disease to another person by coughing or sneezing or when spending a lot of time near one another where you share breathing space. Many babies who get pertussis are infected by older siblings, parents, or caregivers who might not even know they have the disease.

Explanation:

Answer 2

Answer:

Explanation:People with pertussis usually spread the disease to another person by coughing or sneezing or when spending a lot of time near one another where you share breathing space. Many babies who get pertussis are infected by older siblings, parents, or caregivers who might not even know they have the disease


Related Questions

Below is an image of a nucleus before it divides via meiosis. The chromosomes shown in red are from the female parent, and the chromosomes
in blue are from the male parent. Predict the gametes that can be created from this organism and explain the reason these different gametes are
possible.

Answers

Answer:

I predict that the gametes will be unique from their parents.

Explanation:

I predict that the chromosomes will pair up, with each pair having a red chromosome and a blue chromosome, then they'll cross over and exchange similar genetic information with each other. I think this because variety is important for any species for survival.

Alguien me puede explicar

Answers

Yes, because if two samples come from the same individual, all the bands of one sample must coincide with all the bands of the other. Compare the bands in each sample and determine if any of the suspects left the blood found at the crime scene.

I need help please

Are mutations always harmful? Why or why not?

Answers

Answer: Mutational effects can be beneficial, harmful, or neutral

Explanation:

Most non-neutral mutations are deleterious. In general, the more base pairs that are affected by a mutation, the larger the effect of the mutation, and the larger the mutation's probability of being deleterious.

"nature.com"

As regards the use of animal models,

Select one:

a.
Animals can model anything in the realm of human psychology


b.
The rat brain is completely different from a human brain in its neuroanatomy


c.
The 5-choice serial reaction time task is a way to operationalize spatial memory and spatial learning


d.
Rats can drive little cars


e.
All of the other answers are correct

Answers

Answer:

b number is the answer is it ok

What differences would you expect to see in a population made up of individuals whose chromosomes experience crossing-over frequently compared with a population made up of individuals whose chromosomes do not cross over? Please explain your reasoning.

Answers

Explanation:

Crossing over is a type of recombination that occurs during prophase I of meiosis and results in the exchange of genetic material between homologous chromosomes. In a population where crossing over occurs frequently, there would be increased gene pool or genetic drift and variations compared to a population where individual chromosomes do not cross over. The offspring will be genetically unique because of crossing over and independent assortment.

Question 7(Multiple Choice Worth 4 points)
(01.03 MC)
The evolution from vesicles to true cells was enabled by the development of

A) a membrane separating the cell from its environment
organic molecules, such as carbohydrates and lipids

B) self-replicating molecules, such as RNA and DNA
Thing

C) inorganic molecules, such as nitrogen and oxygen

Answers

Answer: The correct option is B (self-replicating molecules, such as RNA and DNA)

Explanation:

The current theory of the process of evolution makes use of present day knowledge of genes and chromosomes to explain the source of genetic variation upon which natural selection works. These genes are discrete units of inheritance which determine hereditary characteristics. All the information for the inheritable characteristics of an individual are contained in these genes.

When a cell divides, the genes duplicate themselves so that each daughter cell has an identical set of genes as the original parent cell. These genes are passed from parents to offspring in the gametes of the parents.

Gene are found in the DNA( Deoxyribonucleic acid) molecules or RNA (Ribonucleic acid) molecules. These molecules are capable of self replication due to a process called mutation. Mutations are random changes in DNA that alter genetic information and sin introduce new characteristics. They may occur

--> in body cells or

--> during gamete formation.

Thus, evolution from vesicles to true cells is through self replicating molecules through the process of mutation which is the raw material for evolution

Answer:

B (self replicating molecules such as RNA and DNA)

Got it right on the bio test.

A. Look carefully the next image, label its parts with the words from the box: SPINAL CORD CEREBRUM CEREBELLUM PERIPHERAL NERVES BRAIN STEM ​

Answers

No

You're welcome please give brainliest

_______ are disturbances caused by humans
Anthropogenic factors
Primary succession forces
Human interventions

Answers

Answer:

I think the answer is Human interventions!!!

The function of the placental hormone human placental lactogen (hPL) is to ________. Question 12 options: prepare the breasts for lactation nourish the placenta regulate the menstrual cycle help the placenta to mature All of the above are true.

Answers

Answer:

nourish the placenta

Explanation:

The hormone called human placental lactogen (hPL) is a hormone secreted by the placenta, which functions to supply nutrients and oxygen to the growing fetus in the womb.

The human placental lactogen is produced to help in the efficient use of ingested food substances in the production of energy (metabolism). This indirectly helps to nourish the placenta because if the mother efficiently converts food into nutrients, the placenta is also adequately nourished.


1) Explain how trees cool the environment ??

Answers

Answer:

Trees cool the environment by shading small areas.

Trees cool the air by shading. They cool the air during the process of ‘transpiration cooling’.

Why can't we meet all of our protein needs in one meal?

Answers

Because most people go for what tastes good rather than what is protein rich, and what tastes good is usually high in fat and carbohydrates, as opposed to proteins.

the life cycle of animals

Answers

First birth then growth, reproduction and then death.

These are the 4 factors that take place in the circle of life of an animal

que es atomo y cuales son sus componente :3 rapido

Answers

Answer:

átomo es la unidad constituyente más pequeña de la materia que tiene propiedades de un elemento químico.[1] Cada sólido, líquido, gas y plasma se compone de átomos neutros o ionizados. Los átomos son microscópicos; los tamaños típicos son alrededor de 100 pm (diez mil millonésima parte de un metro).[2] No obstante, los átomos no tienen límites bien definidos y hay diferentes formas de definir su tamaño que dan valores diferentes pero cercanos. Los átomos son lo suficientemente pequeños para que la física clásica dé resultados notablemente incorrectos. A través del desarrollo de la física, los modelos atómicos han incorporado principios cuánticos para explicar y predecir mejor su comportamiento

Explanation:

El átomo contiene protones, neutrones y electrones, con la excepción del átomo de hidrógeno-1, que no contiene neutrones, y del catión hidrógeno o hidrón, que no contiene electrones. Los protones y neutrones del átomo se denominan nucleones, por formar parte del núcleo atómico.

The phenomenon of single or double fertilization is unique to the seed plants

Answers

Answer:

Double fertilization

Explanation:

The phenomenon of double fertilization is unique to flowering plants (i.e., angiosperms). Each pollen grain produces two male gametes (sperm cells), one of which fertilizes the egg to form the zygote, whereas the other sperm fuses with polar nuclei in the female gametophyte in order to form a triploid cell (3n) called endosperm. Subsequently, this endosperm will support embryonic growth by supplying storage nutrients and by serving as a mechanical barrier during seed development and germination.

Sperm is produced in the?

Answers

Answer:

testis

Explanation:

produced from the testicals

Answer:

testis

Explanation:

produced from the testicals

A 53 year old man presents with increasing gastric pain and is found to have a 3 cm mass located in the anterior wall of his stomach. This mass is resected and histologic examination reveals a tumor composed of cells having elongated, spindle-shaped nuclei. The tumor does not connect to the overlying gastric epithelium and is instead found only in the wall of the stomach. The tumor cells stain positively with CD117, but negatively with both desmin and S-100. Special studies find that these tumor cells have abnormalities of the KIT gene. Which of the following is the most likely diagnosis?

a. Lymphoma of mucosa-associated lymphoid tissue (MALToma)
b. Ectopic islet cell adenoma (VIPoma)
c. Gastrointestinal stromal tumor (GIST)
d. Submucosal leiomyoma ("fibroid tumor")
e. Nonchromaffin paraganglioma (chemodectoma)

Answers

Answer:

The correct answer is c. Gastrointestinal stromal tumor (GIST)

Explanation:

Gastrointestinal stromal tumors (GIST) are rare neoplasms that originate from mesenchymal cells, generally express the KIT receptor (CD117) and present activated mutations of the tyrosine kinase or tyrosine kinase receptor proto-oncogene, cKIT (it is the gene that encodes KIT protein synthesis). GISTs can be located in any portion of the wall of the GI tract, but most are located in the submucosa or in the muscularis propria. Some are predominantly extramural; large ones can infiltrate neighboring organs

A gastrointestinal stromal tumor (GIST) is the most likely diagnosis (Option C).

Cancer is a multifactorial disease in which cancer cells divide and proliferate to produce a tumor.

Cancer is often associated with mutations in key genes which are required for the normal functioning of a given tissue (e.g. cell cycle genes).

A gastrointestinal stromal tumor (GIST) is a tumor in which cells of the stomach proliferate in an uncontrolled manner.

In conclusion, a gastrointestinal stromal tumor (GIST) is the most likely diagnosis (Option C).

Learn more in:

https://brainly.com/question/873597

Sponges (phylum: Porifera) are animals that possess feeding cells called collar cells. These cells have a central flagellum surrounded by a collar of microvilli. The collar filters organic matter out of the water column. Which protist shares a more recent common ancestor with the poriferans

Answers

Answer: Choanoflagellates

Explanation:

Protists are organisms that have both plant and animal like characteristics. Some protists develop more plant like characteristics and others more animal like characteristics. Choanoflagellates are the protists which looks like animals called sponges. These protists are single celled organisms. Their function is similar to collar cells of the sponges that is they produce current in water that draws water and food particles via the body of sponges and they filter the food particles through their microvilli.

explain how the mammalian skin perform it's role as a thermoregulatory



Answers

Answer:

The skin contains many blood capillaries and sweat glands ,the sweat glands secrete sweat when it is hot.when the sweat evaporates from the skin it cools the body.thermoregulation by the skin occurs through dilation and constriction of the blood vessels.when the bodies temperature raises,the blood vessels carry heat in the blood to the skin.the blood capillaries dilate become wider so that more heat can be lost to the environment.this is called vasodilation.when the outside temperature is low,the blood capillaries constrict become narrower so that less blood flows to the surface of the skin.therefore less heat is lost to the environment this is called vasoconstriction.

I hope this helps

Why does geographic isolation cause speciation?
A. It increases gene flow between populations.
B. It allows two populations to evolve separately.
C. It increases interbreeding between populations.
D. It causes adaptive radiation.

Answers

Answer:
B. It allows two populations to evolve separately.



Explanation:
Geographic isolation is theorized to have catalyzed the formation of new species. Let’s say groups B and D of a bird species get separated by something, and they can’t cross between to interbreed or exchange alleles.

We describe this as no gene flow, which is the opposite of choices A and C. Because of this, they may diverge if given enough time due to the difference in environmental pressures, because they’re now in different environments.

D is incorrect because it doesn’t apply.

what measure against mosquitoes is least harmful to the environment ​

Answers

Answer:

Eliminate standing water in rain gutters, old tires, buckets, plastic covers, toys, or any other container where mosquitoes can breed. Empty and change the water in bird baths, fountains, wading pools, rain barrels, and potted plant trays at least once a week to destroy potential mosquito habitats.

Steven wants to decorate his office surroundings with different ornamental plants. Which professional should Steven consult? ОА soil scientist OB. biotechnologist OC. horticulturists OD. agricultural engineer​

Answers

Answer: the correct option is C (horticulturists)

Explanation:

ORNAMENTAL PLANTS are defined as those plants that has outstanding and unique flowers, fragrance an interesting shape, colorful or unusual bark, excellent fall color, or a combination of these and other features. While some of these plants add framework and structure to the garden and provide at least a little shade.; others also make great background plants for shrub and flower borders.

HORTICULTURISTS are individuals that deals with the aspect of agriculture which involves the cultivation of plants, vegetables, fruits, flowers, herbs, ornamental trees, maintaining nurseries, gardens, orchards and plantations. To be more specific, ornamental horticulturist are those that works with plants used in decoration or recreation, which is mostly done at a nursery, floral shop, landscaping or office surroundings.

Humans are diploid; every individual carries only two alleles.

a. True
b. False

Answers

A. True :)


I hope this helps

Little Hazel had a painful cavity filled the last time she was at
the dentist. The next dental visit, she begins to cry when the
dental assistant walks out and calls her name. Provide a
rationale for her behavior based on classical conditioning
principles. Be sure to use behavioral terms in your answer
(US, UR, NS, CS, and CR should be identified for full credit).

Answers

Answer:

UCS=US=unconditioned stimulus. UCR=UR=unconditioned response. CS=conditioned stimulus. CR=conditioned response. NS=neutral stimulus.

Identify the eicosanoid.

a.
Vitamin D.

b.
Cholesterol.

c.
Sex hormones.

d.
Thromboxanes.

e.
Bile salts.

Answers

Answer:

The eicosanoids are a family of oxygenated derivatives of 20-carbon polyunsaturated fatty acids that includes prostaglandins, thromboxanes, leukotrienes, endocannabinoids, and isoecosanoids.

on a molecular level why does lifting weights consume energy

Answers

Answer:

to contract a muscle, myosin and actin filaments shorten, requiring ATP binding and hydrolysis

Explanation:

hopes it help

Which of the following is false concerning Salmonella and Shigella? A. Shigella are H2S + and motile, Salmonella are H2S - and nonmotile. B. Salmonella Typhi causes typhoid fever with serious systemic spread. C. Shigella cause bacillary dysentery. D. There is a capsule and an attenuated living vaccine for typhoid fever. E. Shigella dysenteriae produces the most severe form of shigellosis and may lead to HUS and kidney damage due to production of Shiga toxin.

Answers

Answer:

A. Shigella are H2S + and motile, Salmonella are H2S - and nonmotile

Explanation:

Shigella is a genus of Gram-negative (i.e.,  they have a cell wall composed of a thin layer of peptidoglycan), nonmotile, and facultative anaerobic bacteria; whereas Salmonella species are Gram-negative and facultative anaerobic bacteria. Moreover, Salmonella are motile bacteria, in a similar way to other human pathogenic bacteria (e.g., Vibrio cholerae, Pseudomonas aeruginosa, and E. coli). Salmonella can produce hydrogen sulfide (H2S) from thiosulfate or sulfite; whereas Shigella species are unable to produce hydrogen sulfide. Typhoid fever, also known as enteric fever, is an infection caused by S. typhi that can spread throughout the body and affect different organs (i.e., it is a multisystemic illness). Vivotif (Typhoid Vaccine Live Oral Ty21a) is a live attenuated bacterial vaccine used for oral administration only; whereas Vi capsular polysaccharide vaccine (ViCPS) is a vaccine administered by injection. Finally, shigellosis is an infection that affects the digestive system caused by Shigella bacteria. In this regard, S. dysenteriae produces a potent cytotoxin known as 'Shiga toxin' that may cause local destruction of the colonic epithelium.

You find a neuron that is releasing acetylcholine onto a muscarinic receptor on its target cell. When you trace the axon back to the spinal cord, you see that it is part of the nerve coming from the upper regions of the spinal cord. Based on its anatomy, you should classify this neuron as

Answers

Answer:

parasympathetic.

Explanation:

This neuron in the question is a parasympathetic type of neuron that releases the acetylcholine onto the target cell. It is the part of the nerve coming from the upper regions of the spinal chord.

The [tex]\text{parasympathetic}[/tex] nervous system mainly is composed of the cranial spinal nerves and the [tex]\text{sacral spinal nerves}[/tex]. The preganglionic neurons that arises from the brain or from the sacral spinal cord.

Therefore, the correct answer is "parasympathetic" neuron.


Which of the following parts of a prokaryote is the part of the cell membrane that is folded in and thought to be used
for helping DNA replicate?
A. Mesosome
B. Genophore
C. Peptidoglycan
D. Cell wall

Answers

Answer:

a

Explanation:

: an organelle of bacteria that appears as an invagination of the plasma membrane and functions either in DNA replication and cell division or excretion of exoenzymes.

The following part of the cell membrane that is folded in and thought to be used for helping DNA replicate is the mesosome. The correct option is A.

What is mesosome?

Mesosome is a round organelle that is present in prokaryotic organisms like bacteria. These organisms present as introversion in the plasma membrane. This organ helps in many functions of the cell like DNA replication and cell division.

DNA replication is a process of replicating DNA in other cells. It happens in the process of cell division. In bacteria cells, mesosomes help in the distribution of DNA into the daughter cells during the division.

Thus, the correct option is A. Mesosome regarding the organelle present in the bacteria helps in DNA replication.

To learn more about mesosomes, refer to the link:

https://brainly.com/question/10685556

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write a documentary on journey of corona virus​

Answers

Answer:

at this situation we need to take care of ourselves

because we know that it's disease which leads us to death

Coronavirus started as a vacation for all of people across the world celebrities people that work hard people that just needed a break from their job however it turned it into so much more it made small businesses lose so much money it made people lose the ones that they loved and it made riots and so many other things that needed to be said finally come out to the public there’s many ways that you could say coronavirus has had a bad impact on humanity but in other ways it’s made so many things that were kept in the dark finally coming to the light (BLM) it’s truly change some people people that used to be extroverts turn into introverts and it’s made us all show our true side because it scared all of us


In the absence of oxygen, the pyruvic acid produced during
glycolysis is converted to co, and A. water B glycerol.ethanol
D. citric acid

Answers

Answer:

B. Ethanol

Explanation:

During absence of O2 pyruvic acid is reduced to ethanol in alcoholic fermentation.

Answer:

its is converted into co andoption .C Ethanol

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discuss the reaction in tricarboxylic acid cycle Suppose that a local TV station conducts a survey of a random sample of 120 registered voters in order to predict the winner of a local election. The Democrat candidate was favored by 62 of the respondents.Required:a. Construct and interpret a 99% CI for the true proportion of voters who prefer the Republican candidate. b. If a candidate needs a simple majority of the votes to win the election, can the Republican candidate be confident of victory? Justify your response with an appropriate statistical argument. escribe la terminacin de los siguientes verbos:indagariamos:satisfacer:invertiremos:ayuda por favor lo le Agan caso que es la materia ley es de caligrafa Question 37 During the 19th century and early 20th century the Irish immigrated to America because: a. of English persecution. b. of starvation and poverty.c. of a wide spread fungus attack on potato. cultivation. d. all of these answers are correct. 7+35/3+5 - 7-35/3-5 ASAP Determine whether the statement is true or false and why. We have discovered a series of humanoid fossils that are similar to humans, but not human. Each of these humanoid species dates to a different period in time becoming more human-like the closer to the present they are, showing a clear evolution into humans.A. False, it should read We have discovered no series of humanoid fossils that are similar to humans, showing a clear lack of any transitional fossils as evidence of human evolutionB. TrueC. False, it should read We have discovered a series of humanoid fossils that are similar to humans, but not human. Each of these humanoid species dates to a different period in time becoming less human-like the closer to the present they are, showing a clear evolution away from humans.D. False, it should read We have discovered a series of humanoid fossils that are similar to humans, but not human. Each of these humanoid species dates to the same period in time, showing that many human-like species existed at once, but all went extinct. Brainliest 70 Points! Write an equation representing the translation of f(x) = 7x + 3 down 4 units. When many nucleotides link together, they form a biomolecule responsible for storing genetic information called aGroup of answer choicesprotein.nucleic acid.retinal.carbohydrate. How can evidence from an experiment be explained in relationship to the hypothesis? as a prediction as a question as an inference as a conclusion BCFind the length of "a", tothe nearest tenth, usingthe Pythagorean Theorem.Enter What is the importance of physics???MAKE IT QUICK!!! Explain how a bottleneck event can enrich recessive traits in the genetics of a population. The formula for the lateral surface area of a conethats the surface that isnt the baseis r sqrt(h + r); h is the height of the cone and r is the radius of its base. A circular #2 pencil is 6 mm in diameter, and a pencil sharpener creates a cone-shaped end that is 20 mm in height. Find the surface area of the sharpened part of the pencil. Simplify. x/4+x/3//x/2 Why do the cells have so many different organelles and structures?What are the main differences between cell walls and cell membranes? POUILO 11. For a bivariate frequency table having (p + q) classification the total number of cells is (a) p (b) p +q (c) q (d) pq Which expression is equal to "13 more than the quotient of n and 8"? *A) 13n + 8B) n - 8 + 13C) n * 8 + 13D) (n / 8) + 13 what did seyyid said transfer his capital help1) find the value of x2)find length of a side of the square What is gylcosylation