is SARS a common virus?

Answers

Answer 1

Answer: SARS is not a common virus,  it is a viral respiratory illness that was recognized as a global threat. it is spread through close contact. Although it is a very serious illness, it is rare to get. only eight persons were laboratory-confirmed as SARS cases.

Explanation:


Related Questions

By which time period did the average
temperature across Earth's surface rise
1.62 degrees F above the 20th century
average, the hottest period in the 136-
year average?
A. 1300s
B. 1500s
C. 1700s
D. 2000s

Answers

Answer:

C. 1700s

Explanation:

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Answer:

C. 1700s

Explanation:

How has the average temperature on Earth changed over time?

Earth's temperature has risen by 0.14° F (0.08° C) per decade since 1880, and the rate of warming over the past 40 years is more than twice that: 0.32° F (0.18° C) per decade since 1981. ... From 1900 to 1980 a new temperature record was set on average every 13.5 years; from 1981–2019, a new record was set every 3 years.

True or False: The right and left lungs are the same size.

Answers

Answer:

False is the correct answer

Explanation:  the lungs are different sizes due to accommodating different organs. Left is smaller. Right is larger yet shorter.

False because we are not perfectly symmetrical

[BWS.05] Which of these forces exist between Earth and moon?
O gravitational force
O electromagnetic force
O weak nuclear force
O strong nuclear force

Answers

Answer:

Gravitational Force

Explanation:

Action at a distance, such as the gravitational force of Earth on the Moon, is explained by the existence of a force field rather than by “physical contact.” The four basic forces are the gravitational force, the electromagnetic force, the weak nuclear force, and the strong nuclear force.

Answer:

gravity

Explanation:

did you take your gravity class

The loyality and humbleness that one shows in all activities is called A.freedom B.cooperation C.openess D respect​

Answers

Answer:

D

Explanation:

basta yan yung alam Kung sagot

Does venueles carry bright red color?

Answers

Answer:

No

Explanation:

Arteries typically carry oxygenated blood, which is bright red in colour. The exception is the pulmonary artery which carries deoxygenated blood from the heart to the lungs.

Answer:

Venules carry deoxygenated blood. All blood in humans is bright red when oxygenated, but, a darker red when deoxygenated. Deoxygenated blood is darker due to the difference in shape of the red blood cell when oxygen binds to haemoglobin in the blood cell (oxygenated) versus does not bind to it (deoxygenated).

Explanation:

*sigh* its just how science do

What is the term that describes the loud, high-pitched sound made with each inhalation that occurs when there is respiratory obstruction in the larynx or trachea

Answers

Stridor, its as described in the definition above, a high pitched wheezing sound caused from a blockage

the countries with the highest fertility rates are also the ones with the highest infant mortality rates. which one causes which and how do we know?

Answers

Answer: Higher infant mortality rates cause higher fertility rates.

Explanation:

Countries with high infant mortality rates are usually countries where families rely on children to help out the family. High infant mortality rates and a need for children means that those people will continue to try to have children until they have some that survive. If more children die, and people need to have more children, there will be a higher fertility rate.

which of these neurotransmitters does not bind to a plasma membrane receptor?

Answers

When neurotransmitter molecules bind to receptors in the plasma membrane of the receiving neurona. ion channels in the plasma membrane of the sending neuron open. b. ion channels in the plasma membrane of the receiving neuron open. c. the receiving neuron becomes more negative inside. d. the receiving neuron becomes more positive inside. e. vesicles in the synaptic terminal fuse to the plasma membrane of the sending neuron.

Damselfish will fight over newly available territory. This is a direct interaction between individuals and is an example of

Answers

Answer:

This is a direct interaction between individuals and is an example of... Territorial agression!

Explanation:

territorial behaviour, in zoology, the methods by which an animal, or group of animals, protects its territory from incursions by others of its species. Territorial boundaries may be marked by sounds such as bird song, or scents such as pheromones secreted by the skin glands of many mammals.

Have an awesome day! :D

Meiosis is the process that produces haploid gametes from diploid cells in the gonads. As a diploid cell progresses through the stages of meiosis I and meiosis II, at what point do the cells first become haploid

Answers

Answer:

A

Explanation:

Meiosis occurs in two phases. Meiosis I is the reductive phase, while meiosis II is non-reductive. The point at which the cells first become haploid is at the end of meiosis I, after homologous chromosomes separate.

-----------------------------------------------------

Through Meiosis, a diploid cell (2n) produces four haploid daughter cells (n).  

After DNA replication there are two meiotic phases.  

The first one is a reductive phase, in which homologous chromosomes separate.  

In the second phase, the cell suffers a new, not reductive division.  

1. In the first phase, Meiosis I:  

Prophase I: Chromosomes condensate and become visible. Occurs crossing-over between homologous chromosomes. Crossin-over makes the daughter cells to be genetically different from the original one.  

Metaphase I: Homologous chromosomes randomly align in the equatorial plane.  

Anaphase I: In this phase occurs the division and independent separation of homologous pairs. Each chromosome migrates to different poles. This separation generates different chromosomal combinations in the daughter cells.

Telophase I: Chromosomes of homologous pairs are already in the corresponding poles, and the nuclear membrane forms again in each pole.

Cytokinesis occurs

2. In the second phase, Meiosis II:  

Prophase II: Chromosomes condensate again and become visible.  

Metaphase II: Chromosomes join the spindle apparatus and migrate to the equatorial plane, where they randomly line up. Sister chromatids are holden together until they reach the Anaphase.  

Anaphase II: Centromeres divide, chromatids get separated, and each of them goes forward an opposite cellular pole.

Telophase II: Once in the poles, the chromosomes become lax again, and the nuclear membrane forms again.  

Cytokinesis occurs.  

To answer this question, focus your attention on Meiosis I. During the anaphase homologous chromosomes separate. After this point, the nuclear membrane forms in the telophase, followed by cytokinesis. The result is two haploid cells.

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in which structure would you expect to find a chloroplast?

Answers

Answer:

in plant cells and eukaryotic algae

Explanation:

PLS HELP ASAP ILL GIVE BRAINLKEST I GIVE 10 POINTS ITS NOT BB AND Bb

Answers

It’s the third one
BB, Bb, and bb

A decrease in metabolism without a similar, compensatory decrease in alveolar ventilation will have what effect on the systemic pH

Answers

Answer:

The PH will increase

Explanation:

what is the texture of a worker bee leg.​

Answers

The texture of a bee leg is like a shiny gloss to it with tiny fine hairs all over it so that pollen will stick.

Two brothers have thick hair that grows over their faces and most of their bodies.
This human disorder, called Ambra's Syndrome, shows X-linked dominant inheritance. The
mother of the boys is also affected by Ambra's Syndrome, although her excessive hair growth
occurs in various, scattered patches on her skin rather than a continuous coverage like her sons.
What is the most likely explanation for the patchy expression of hairlessness on the mother's
skin?

Answers

The most likely explanation for the irregular expression of hairlessness on the mother's skin is codominance

Codominance is a biological term to refer to the hereditary pattern that is characterized by:

In the heterozygous state, there is no recessive allele, but both behave as dominant. Codominance is characterized by the manifestation of both characteristics as dominant, without mixing.

According to the above, the irregular expression of the lack of hair in the mother is a manifestation of the codominance of the hair gene and the hairless gene that do not mix but are seen independently.

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The connective tissue layer that surrounds an entire muscle is called ______. Multiple choice question. epimysium endomysium perimysium

Answers

Answer:

the answer is epimysium

Explanation:

The connective tissue layer that surrounds an entire muscle is called the epimysium, which is the first option as it is composed of dense, irregular connective tissue and serves to protect the muscle.

What is epimysium?

The epimysium plays a role in transmitting force from the muscle to the surrounding structures and connects to the tendons and other connective tissues that attach the muscle to bone and other structures, and the epimysium is just one of the three connective tissue layers that make up the structure of a skeletal muscle; the other two layers are the perimysium and the endomysium, and together, these three layers of connective tissue provide the necessary structural support for skeletal muscles to function properly.

Hence, the connective tissue layer that surrounds an entire muscle is called the epimysium, which is the first option.

Learn more about the epimysium here.

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how may earths would fit inside the sun?

Answers

Answer:

1.3 million Earths

Explanation:

The kind of gene whose product interacts with other nucleotide sequences to affect their transcription or translation is a _____ gene.

Answers

Answer:

constitutive gene.

Explanation:

i went to 6th grade

in translation, the dehydration synthesis reaction is catalyzed by which enzyme?

Answers

Answer:

hydrolysis

Explanation:

hydrolysis is the reverse of dehydration because it breaks a covenant bond by adding a water molecule

hope this was helpful ☆☆

In translation, the dehydration synthesis reaction is catalyzed by DNA polymerase enzyme. Therefore, the correct option is B.

What is DNA polymerase?

DNA polymerases are a group of enzymes that are responsible for catalyzing the synthesis of DNA. Their main function is to replicate the DNA. These enzymes work in pairs and a responsible for replicating two strands of DNA  in a tandem. DNA polymerases α and δ are primarily responsible for nuclear DNA replication. There are at least 15 DNA polymerases known to exist in humans.

Translation is the process by which the genetic code carried by mRNA is decoded to produce a specific sequence of amino acids that will form a protein. This process involves the ribosome, which is responsible for assembling the protein chain by joining amino acids in a specific order dictated by the mRNA sequence. Therefore, the correct option is B.

Learn more about DNA polymerase, here:

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The question is incomplete, but most probably the complete question is,

In translation, the dehydration synthesis reaction is catalyzed by which enzyme?

A. Ribosome

B. DNA polymerase

C. Peptide

D. RNA polymerase

E. Ligase

F. Topoisomerase

What are the differences between an onion and a whitefish cell

Answers

During mitosis, the animal cell will have visible centrioles, where the plant cell will not. In thin section slides, you will also see that the onion cells are all dividing along the same axis, while in the whitefish embryos the plane of division appears to be random.

Onion are something that you can eat and grow on trees while whitefish cells are a part of whitefish.

Hope this helps :) - sorry if I am wrong (I tried my best) - if I am right, can I get brainliest pleassee??

two chromosomes that each have genes for the same characters are

Answers

Answer:

These are called homologous chromosomes, or homologs.

Mutations that lead to genetic disease commonly cause human illness because:
A. a molecule normally metabolized by an enzyme accumulates to toxic levels.
B. the overproduction of enzymes makes you sick. mutations in DNA cause body cells to self-destruct.
C. mutations cause extra DNA to be made, which gets into your blood, causing illness.
D. most genetic diseases make people more likely to become sunburned.

Answers

Answer:

The answer is A.

Explanation:

I have no explanation for this but I know for a fact that it's A.

what is the other name for the autonomic nervous system?

Answers

Answer:

visceral motor system

Explanation:

Another name for the autonomic nervous system is the visceral motor system.

Which of the following statements is TRUE?

If you have minor symptoms of PID, you do not need to be treated.
PID always causes severe pain.
*PID can result in having problems getting pregnant later in life.
PID occurs in males.

Answers

Answer:

c. PID can result in having problems getting pregnant later in life.

Explanation: is correct. post protected

The main sugar that photosynthesis produces is help me please ;(

Answers

Answer:

The answer is Glucose.

Hope that helps. x

Explanation:

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.

A piano player uses her hands for brief quick movements. Which muscle fiber type would you therefore predict to be predominant in these muscles

Answers

For brief quick movements, which muscle fiber type would you therefore predict to be predominant in these muscles...Fast twitch muscle fiber type.

There are three types of muscle tissue. 1. Cardiac 2. Smooth 3. skeletal muscles. The skeletal muscle are involved in voluntary movements of the body.

Since the player uses her hand in a voluntary way of movement, therefore she makes use of her skeletal muscles.

With regards to the skeletal muscles, there are two types with regards to speed, we have the slow twitch and the fast-twitch.

The fast-twitch muscle fiber aids in fast movement of the body but for shorter periods compared to the slow twitch.

Learn more: https://brainly.in/question/6418353.

As a part of her homework, June make a flowchart about the steps involved in hearing the sound energy produced by wind chimes.

A flowchart with four steps. The first step is the rods vibrate back and forth. The second step is wind chime rods hit each other. The third step is sound waves are created. The fourth step is the sound travels into your ears.

Which statement best explains the error in June's flowchart?

The wind chime rods hit each other before they begin to vibrate.
Sound waves are created before the wind chime rods hit each other.
The sound of the wind chimes travels to your ear before the rods vibrate.
The spin of the rods causes sound energy, not its vibrations.

Answers

Answer:

A is the final answer........

The gated channels that respond to physical distortion of the membrane surface are called ________. These channels are important in ________.

Answers

Answer:

mechanically gated channels; sensory receptors

Explanation:

Why would Humans would not be able to repair and grow your muscles without bacteria

Answers

Answer: the genes of those microbes are more responsible for human survival than the genes of our own human body! Not all of the bacteria in our bodies are bad. Just as we cannot live without air and water, we cannot live without our microbes. So, the cells that make our muscles function are not even our own body cells!

a person taking a glucose test is usually told to fast prior to the test. why would fasting be necessary?

Answers

so that the test can show the regular glucose level.

if you way something prior to the test, your sugar can change and your test result won’t be accurate
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