what is infencious disease

Answers

Answer 1

Answer:

Infectious diseases are diseases caused by living organisms like viruses and bacteria. They can be passed from person to person through body secretions, insects or other means. Examples are SARS, influenza, the common cold, tuberculosis (TB), Hepatitis A and B.


Related Questions

Self-portraits can help you learn about positioning people in a photograph.

True
False

A camera's self-timer takes a picture after a certain amount of time has passed.

True
False

Answers

1.) True

The reason this is true is because adjusting the camera allows you to get an understanding of how someone else should look or how they would likely look best when photographed. It also gives an understanding of how a camera should be aimed to get the best result.

2.) True

While many cameras have this feature, most are configured to only use this feature when the photographer selects it. This feature allows the photographer to adjust the camera in case they feel something isn't quite right with it, and it also allows them to get into the picture themselves if they feel they want to.

Hope this helps you, and have fun with whatever it is you are doing with your camera.

-Sayonara

Answer:

it is true for a and true for b. (aka a is question and b is question 2.)

Explanation:

Which component of milk causes caramelization when heated?

Answers

Answer:

i think its carbohydrates

Explanation:

As the carbohydrates are heated, the molecules break down and reform into compounds with a characteristic brown colour and flavour.

hope this helps

The component of milk that causes caramelization when heated is lactose, as it is a disaccharide sugar that is present inside milk and consists of monosaccharides such as galactose and lactoses.

During the caramelization process in milk, heat causes the lactose molecules to undergo thermal decomposition due to the heat, resulting in the formation of various compounds, such as caramelan, caramelene, and carameline, etc. These compounds are the major factors for browning and flavor development of milk when it is heated. At a high temperature, the caramelization process is done.

Learn more about the lactose here.

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Choose three characteristics of enhancers and silencers. Select the three correct statements. Select the three correct statements. Their orientation may be inverted without significant effect. They can act only at a little distance from the promoter. An enhancer can regulate many different genes, while a silencer regulates only one gene or group of closely related genes. They can regulate only one gene or group of closely related genes. They can act at a great distance from the promoter. They can regulate other genes when inserted. They can only act if they are placed downstream from the promoter.

Answers

Answer:

im sorry idfk

Explanation:

These large, violent storms are created over water, move counter clock Spring Wise, and form an eye in the center What are these storms called?" O from 2. On the weather map. Asheville has over it What does this represent parts.​

Answers

Answer:

b

Explanation:

A cat has 38 chromosomes. How many chromosomes would the cat’s sex cells have?
answers:
14, 19, 16, 0r 12
PLZ ANSWER QUICK AND CORRECTLY

Answers

Answer:

19

Explanation:

divide 38 by 2

HELP ASAP!! I WILL MARK BRAINIEST I NEED HELP ON ALL!!
1.
Which of these rocks forms when magma cools and hardens?
A. coal
B. shale
C. granite
D. sandstone

2.
Which of these rocks forms from compacted and cemented sediments?
A shale
B. basalt
3.
C. gneiss
D. granite
I
What
type
of rock forms when heat and pressure inside Earth chemically change existing rock?
A. igneous rock
B. sedimentary rock
C. metamorphic rock

4.
How would you identify a glossy, black, microscopically fine-textured rock that has no layering?
A. marble
C. obsidian
B. granite
D. limestone

5. Which of the following is true of a silicate mineral?
A. It contains only carbon
B. It must contain a metal.
C. It contains silicon bonded to oxygen
D. It can only be found in metamorphic rock

Answers

1. I think it is C

2. Possibly A, as shale is a sedimentary mineral

3. C possibly

4. C, obsibian, very glossy and fine, i have some at home, so i know the charactisitics

5. C

Carbon dioxide is a naturally occurring gas that is vital to plant and animal life, yet carbon dioxide emissions from burning of fossil fuels are expected to result in significant climate change within 100 years. Should carbon dioxide be considered to be a pollutant? Support your position by providing reasons why or why not.

Answers

Answer:

Yes, it should be considered a pollutant

Find the reason below

Explanation:

A pollutant is any substance that poses threat or causes harm to the sustainability of the environment. As rightly stated in this question, carbon dioxide (CO2) is a naturally occuring gaseous constituent of our atmosphere. It is vital to both animal and plant life as it is utilized by plants to synthesize their food (glucose), which is the starting point for the flow of energy.

Although CO2 plays a major role in sustaining life, it is also a major cause of GLOBAL WARMING. Carbon dioxide is considered the most important greenhouse gas as it has the ability to trap and emit heat, contributing to the global rise in atmospheric temperature. This causes a lot of harm and environmental disturbance, hence, CO2 despite its beneficial purpose, should be considered a POLLUTANT.

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The size of a population will increase when the number of births
A.
is the same as the number of deaths.

B.
is greater than the number of deaths.

C.
remains equal to the number of deaths.

D.
fluctuates up and then down.

Answers

The answer is B. Is greater than the number of deaths.

8. What type of rock would you find between and igneous intrusion and sedimentary rock?

Why?

Answers

There are three kinds of rock: igneous, sedimentary, and metamorphic. Igneous rocks form when molten rock (magma or lava) cools and solidifies. Sedimentary rocks originate when particles settle out of water or air, or by precipitation of minerals from water. They accumulate in layers.

Which of the following is an example of an environmental impact of agriculture?

Answers

A major cause of deforestation and other ecological damage that destroys habitats and biodiversity is agricultural growth.

Thus, Lowland forests in Indonesia being replaced by oil palm plantations, and the Cerrado and Atlantic Forests in Brazil and Paraguay are harmed by soy farming.

Extreme erosion is caused by logging and farming methods that are not sustainable. Half of all agricultural topsoil has been lost during the previous 150 years.

In many nations, agriculture is the main cause of pollution. Pesticides, fertilizers, and other harmful agricultural chemicals have the potential to contaminate fresh water, marine habitats, air, and soil. They may also linger in the environment for many years.

Thus, A major cause of deforestation and other ecological damage that destroys habitats and biodiversity is agricultural growth.

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Is this bird
A. Feeding
B. Photosynthesizing
C. Digesting
D. Respiring

Answers

Answer:

c

Explanation:

Severe flooding in an area caused a population of minnows to become split into two separate ponds. Prior to the separation, the male minnows all had a moderate number of spots. Following the separation, the first pond was filled with larger fish that fed on minnows, so male minnows with fewer spots were better able to avoid detection by predators. The minnows in the second pond, however, had very few predators, and female minnows in this pond preferred to mate with males that had the most spots. After many generations, the two minnow populations evolved into different species and could no longer interbreed.

Answers

Answer:

Geographic isolation

Explanation:

Geographic isolation occurs when a population is split by geographic factors, such as the flood mentioned. They can become separate species over time and will no longer be able to produce viable offspring. Hope it helps :)

A Rectal Enema is used to treat
Constipation. This would represent
what type of drug delivery?
Select one:
a. Enteral and systemic
O b. Parenteral and local
O c. Enteral and local
d. Parenteral and systemic​

Answers

Answer:

b is correct: enteral and local

[tex]\huge{\mathbb{\tt { QUESTION:}}}[/tex]

A Rectal Enema is used to treat

Constipation. This would represent

what type of drug delivery?

Select one:

O a. Enteral and systemic

O b. Parenteral and local

O c. Enteral and local

O d. Parenteral and systemic

[tex]\huge{\mathbb{\tt {ANSWER:}}}[/tex]

B. Parenteral and local

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X x K i m 0 2 x X

What is the function of the central nervous system?

a) to relay messages
b) to analyze information
c) to process information
d) all of the above

Answers

The answer is D) all of the above

How can biological weathering result in chemical erosion? A.Roots loosen soil and break rock B.plants transpire water vapor C. Large herds trample rocks and break up soil D.bacteria release acids and other agents that break down rock

Answers

Answer:

C

Explanation:

It contributes to the breaking down of rocks and landforms

The train speeding down the track. The faster the train moves diesel fuel the train uses. That means the faster the train goes, the more what it needs?

Answers

Answer:

I really think that this is engineering or maths but this not for biology

FOR SURE

The train speeding down the track. The faster the train moves diesel fuel the train uses. The faster the train goes the more it need energy.

What is energy?

Energy is defined as a quantitative quality that is conveyed to a person or a physical system and is discernible in the way work is done as well as in the way heat and light are produced. It is important because it is a fundamental human requirement, energy plays a significant role in our daily lives. The primary energy source is the sun.

Railroads used to run their locomotives on petroleum-based diesel fuel, but they are now powered by renewable diesel and biodiesel blends. Biodiesel and renewable diesel are both produced using renewable energy sources rather than fossil fuels.

Thus, the train speeding down the track. The faster the train moves diesel fuel the train uses. The faster the train goes the more it need energy.

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Describe how climate change will impact the human population.

*5 sentences or more*

Answers

Answer:

the answer is in the picture.

Answer: Climate change will likely increase the frequency and strength of extreme events (such as floods, droughts, and storms) that threaten human health and safety. Climate changes may expose more people to diseases. Some groups of people (e.g., the very young and the very old) are especially vulnerable to health impacts. First, older people are physically more vulnerable to extreme heat, so population aging could exacerbate increases in heat-stress mortality brought on by climate change. Higher temperatures also exacerbate outdoor air pollution such as ozone, which also disproportionately affects older people. Human health is vulnerable to climate change. The changing environment is expected to cause more heat stress, an increase in waterborne diseases, poor air quality, and diseases transmitted by insects and rodents. Extreme weather events can compound many of these health threats. Climate affects population distribution both directly as well as indirectly through its effects on soil, vegetation and agriculture that have direct bearings on the pattern of population distribution. ... This explains a high density in the tropics, which are otherwise marked with extremes of climatic conditions.

Explanation:

True or False - Deoxygenated blood is blue

Answers

Answer:

True beoxygenated blood is blue

SERIOUSLY I NEED HELP I AM TAKING A BIOLOGY TEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Describe how the ear converts sound into messages that the brain can interpret.
GIVE A DESCRIPTION OF 125 WORDS

Answers

Answer:

SOUND WAVES enter the ear canal and cause the eardrum to vibrate. ... Moving fluid bends thousands of delicate hair-like cells which convert the vibrations into NERVE IMPULSES. Nerve impulses are CARRIED to the brain by the auditory nerve. In the brain, these impulses are CONVERTED into what we "hear" as sound.

Explanation:

sustainability refers to using resources in such a way that we ensure that they will be clean and healthy for our use

Answers

Answer:

The given statement is true.

Explanation:

Sustainability aims to satisfy immediate requirements, without either undermining skilled workers' opportunity to accomplish about there requirements or needs.It allows companies to decide on their lengthy effects throughout regulatory, socioeconomic, as well as evolutionary terms as well as on quick benefits, including such income reports during the next half portion.

Which part of the electromagnetic spectrum was used by Galileo when he looked through a telescope and saw light from the stars with his eyes?
O gamma radiation
radio waves
visible-light
0 X-rays

Answers

Answer:

visible

Explanation:

Susan noticed that hummingbirds in her yard visited all the flowers, but especially
the parents were eating nectar, they must feed their babies only nectar as well.
To her surprise, she saw hummingbirds bringing small spiders and insects to feed the young humming
She should stick to her assumption that the babies eat nectar since she thought that first.
She should believe what she read in the book and disregard what she witnessed.
She should change her original assumption that they only feed their babies nectar.
She should ask other people what they think and agree with the majority.

Answers

Answer:

to her surprise, she saw hummingbirds bringing small spiders and insects to feed the young

Explanation:

please give brainly!!!!

Sally was exposed to hepatitis. Her doctor gave her an injection containing
antibodies to help her fight off the infection before her immune system had a chance
to kick in.
action
or
MAR is
tion
72411
active immunity - naturally acquired
active immunity - artificially acquired
passive immunity - naturally acquired
passive immunity - artificially acquired

Answers

Answer:

The correct answer is - passive immunity - artificially acquired.

Explanation:

Passive immunity is the immunity that involves giving or acquiring antibodies from other sources instead of developing them on one's own. This type of immunity can be natural and artificial. Mother breastfeed the babies, is the natural passive immunity example as milk also contain antibodies required for immunity of babies.

Artificial passive immunity is the immunity that comes from injecting the antibodies created in different animals or persons which called antiserum or vaccines such as snake antivenom.

Explain the use of NBT​

Answers

Answer:

The National Benchmark Tests (NBTs) are assessments for first-year applicants into higher education institutions. The NBTs were designed to measure a writer's ability to transfer understanding of Academic Literacy, Quantitative Literacy and Mathematics to the demands of tertiary coursework.

Hope this helps.

Answer: The National Benchmark Tests are assessments for first-year applicants into higher education institutions.

Explanation:

Do all changes to dna alter the phenotype of an organism? Explain.

Answers

Answer:

No change occurs in phenotype.

Explanation:

This can happen in many situations:

perhaps the mutation occurs in a stretch of DNA with no function, or perhaps the mutation occurs in a protein-coding region, but ends up not affecting the amino acid sequence of the protein.

For each of the following
statements, say whether it is true for mitosis only, meiosis only,
both, or neither



(a) The DNA is replicated before cell division starts.
(b) The homologous chromosomes pair up during division.
(c) The cell divides only once during the process.

Answers

Answer:

A-Both

B-Unknown but you said it was fine

C- mitosis

Explanation:

Mitosis and meiosis both have interphase, in which dna is replicated (synthesis). B I don’t know, hopefully you can get that one figured out—sorry :(. Meiosis occurs twice, which is why it results in 4 cells (gametes). Hope this helps a little :)

would it be better to mine in a wilderness area than a developed area?

Answers

Answer:

Yes.

Explanation:

Mining in a area of wilderness can provide great succes as long as you know the area well and know some things about where to mine and not.

Answer: Yes, it is better to mine in a wilderness area than a developed area.

Explanation: Mining is carried out to gather raw materials that serve as the foundation for any country's or region's growth. It is more likely to occur in a wilderness area than in a developed area because mining usually has a negative impact on the environment.

The ores recovered by mining, such as oil, coal, metals, and others, cannot be obtained from any developed location, and the mining process destroys settlements in developed areas.

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If you were appointed to a senior position, what would you do first?​

Answers

Explanation:

I will study my responsibility.I will work as a guardian to the juniors and fulfill the tasks I am accompanied with.I will try my best to satisfy everyone.I won't give any kind of disappointment to anyone regarding my work and performance.

The disorder known as cystic fibrosis (CF) is inherited in a recessive autosomal manner. In populations of Northern European descent, the frequency of people with CF is about 1 in 2,500. Assuming Hardy-Weinberg equilibrium for this disorder, answer the following: A. Assuming Hardy-Weinberg equilibrium, what percentage of people in the population would be expected to be heterozygous carriers

Answers

Answer:

The correct answer is -

A. 3.9% people in the population would be expected to be heterozygous carriers

Explanation:

The genotype frequency for the CF affected is 1/2,500,

= 1/2500

= 0.004. This is equal to q^2

here q = frequency of recessive alleles combination or CF people. (H-W equation => p^2+q^2+2pq=1)

The allele frequency is the square root of q^2 value, which equals 0.02. The frequency of the dominant allele or p would be

1 - 0.02 = 0.98 (p+q = 1)

The frequency for the CF combinantion =0.004

the dominant or unaffected people genotype

= (098)^2

= 0.96;

and for the heterozygote, it is

= 2pq

=2(0.98)(0.02)

= 0.039 or 3.9%

1 point
Based on modern evolutionary theory, the development of a new species
would most likely be associated with *
A) a constant environment
B) stable gene pools
C) geographic isolation
D) a lack of mutations
Evolution can occur at different rates; however, for evolution to occur.

Answers

I believe it is A. GIVE ME BRAINLIEST OR I SPAM REPORT YOUR ACCOUNT JKJKJKJK
Other Questions
How is Cardinal Richelieu portrayed? What is his opinion about the Three Musketeers? A similarity between the separation of powers, the system of checks and balances, and federalism is that they are all related exclusively to the federal government. are all ways that the Constitution limits government power. each illustrate the idea of popular sovereignty. each serve to increase the power of the federal government. Read the following excerpt from "Why I Wrote 'The Passage'" and answer the question that follows.Three decades later I was asked to write a creative piece about Automatic for the People, one of my favorite albums, by R.E.M., my favorite band. It was exciting. This particular project--one that commissioned a piece of creative writing for each of Rolling Stone's 500 Greatest Albums of All Time--had almost no constraints other than a word limit, so I decided to write a story. Then I listened to the album a lot. Several times a day, at home, in the car, wherever I was, I was listening, trying to figure out how to make a story out of the lines in the twelve songs. Because that's what I wanted to do--write a story that combined all the words in the lyrics in an entirely new way. This is what we call being overly ambitious.Why did Martin write "The Passage?"He was asked to write a creative piece in response to the album Automatic for the People.He wanted to use the lyrics of the songs to tell a story.He was asked to write a story about an important memory in his life.He listened to REM's album so much that he had to write a story about it. The fastest man on Earth, Usain Bolt, runs at a speed of 10 meters per second. Howlong would it take him to run 160 meters? # derive is a kind of which dependency Someone pls answer my last question smh lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll Javier was born 3 days ago. His parents have noticed that he has several reflexes that the doctors have been testing. Which of the following is NOT a reflex exhibited by healthy newborns? aMoro reflex bRooting reflex cWalking reflex dStepping reflex eGrasping reflex What do you think would happen to the population of rabbits, if the population of foxes decreased? Sam needs to figure out how much purple paint to buy.Calculate for her the total area, in square feet, of the four walls.She will not paint the door or windows. Please answer I will give u brainliest what's 1.187939392 to the nearest tenth? South and Southeast Asian countries experience extreme weather whichcauses great damage and loss of life. Which are the most common forms ofextreme weather in these regions? I need sum movie ideas, any genre except scary Please help me not sure why did Agatha Christies novel 1926 The murder of roger Ackroyd receive so much criticism? 14. What are the three types of muscle? One economic benefit of the Texas oil boom of the early 1900s was? a) oil field workers moved from urban to rural areas for work b) new laws were passed to prevent wasting oil and natural gas c) hundreds of oil companies were created which established jobs d) new laws were passed protecting the environment what is a attention grabber for racism (for an essay) can you help me with this ,please?