Answer:
Essay
Explanation:
In this modern world, due to advance information technology various means of communication is used for different purposes. For sending documents from one place to another, people use communication medium such as e-mail. For giving message through their voice, people use communication medium such as voice chat. Video chat is also a communication medium used by the individual to chat with their friends and relatives through live video. These communication mediums make the world into a small village where people interact with each other which are present at a large distances.
Answer:
EXACT PLATO ANSWER
Explanation:
Communication has come a long way from letters delivered by a postman to the instant messages you receive today on your mobile phone. Information technology has changed the way we communicate and to an extent the amount we communicate. A few decades ago, people either wrote a letter, sent a telegram, or made a phone call. Today, people send emails, use instant messaging services, and can call from any location without being restricted by the length of cord of the telephone. Additionally, people can also use video technology to see the person they are speaking to.
Email is a message typed out on a computer or a smart phone and sent to another computer or smart phone via a network. The person recipient receives the message almost instantaneously or at the most within a few minutes. People usually use the internet to send emails. In businesses it is also common to send messages through email using private local networks called LANs. Besides the timeliness of the delivery, e-mail has other advantages. You can send the same message to several recipients at the same time by typing their email addresses in the “CC” field of your email program. You can also send images and text as attachments with your email. Therefore, you can sent photographs and documents via email.
Instant messaging (IM) is a real time medium of communication between computers and smartphones. IM differs from email in that IM requires both parties to be online simultaneously, which is not the case when communicating via email. People usually type short messages to communicate with each other. Some IM services allow users to send images and computer files as well.
Chat is a way of communicating with several people in real time through your computer or smartphone. People usually create a user profile names to identify themselves to other users. You can imagine chat to be a virtual room in which people gather to discuss a particular topic. People interested in a particular topic oof into the same chat room and can then type or “post” messages which other users logged into the same chat room can view simultaneously. Aside from its use as a social platform, business can use it to hold a discussion and schools can use it to enable students to have group discussions.
Voice chat is a way of speaking to someone over the internet. Instead of communicating via text, voice chat enables you to communicate orally with others. It’s similar to making a telephone call, but you are using the internet as the medium. Users use a microphone and speakers connected to their computer to communicate.
Video chat or video conferencing enables you to see visuals of the people you are talking to. Besides headphones with an attached microphone, you will also need a camera (webcam) attached to your computer or smartphone. Businesses use videoconferencing as a communication medium. It enables people from different parts of the world to meet without leaving the place where they are located.
All these communication technologies have come about because information technology and the subsequent advances that have occurred in this field.
What is a substrate? a molecule that acts as a catalyst a place where the reaction occurs a place on the product where the enzyme fits a reactant that is catalyzed by an enzyme
Answer:
a reactant that is catalyzed by an enzyme
Explanation:
Reactants are often referrred to as substrates as those are what enzymes mostly act upon to create products or some desired consequence
Option (d). a reactant that is catalyzed by an enzyme is called the substrate.
SubstrateA substrate exists as a molecule on which an enzyme acts. Enzymes catalyze chemical reactions that concern substrate, where the substrate binds to the enzyme's active site, and an enzyme-substrate complex is created. By action of the enzyme, the substrate exists transformed into a product, released from the active site, and free to obtain another substrate.
Enzyme catalysis exists as the increase in the rate of a process by a biological molecule, an "enzyme". Most enzymes exist in proteins, and most such processes are chemical reactions. Within the enzyme, naturally, catalysis happens at a localized site, called the active site.
The reactant in an enzyme-catalyzed reaction is named a substrate.
Because enzymes can expand reaction rates by enormous factors (up to 1017 times the uncatalyzed rate) and tend to be very precise, typically producing only a single product in quantitative yield, they exist the focus of active research.
Hence, Option (d). a reactant that is catalyzed by an enzyme is called the substrate.
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Darwin's ideas espoused in both Origin of Species and The Descent of Man were incompatible with the prevalent scientific racism of the age (like that of Robert Knox, for example) because of Darwin's emphasis on _______.
Answer:
The correct answer is "change".
Explanation:
The missing options of this question are:
A. natural selection.
B. immutability.
C. survival of the fittest.
D. change.
The correct answer is option D. "change".
The scientific racism that was prevalent during Charles Darwin books publications was related to the concept of "pure races", and the association of the inheritance of the "superior attributes" related to these races. Darwin's ideas were incompatible to this scientific racism, since Charle Darwin theories support the idea of a constant change among all people attributes, produced by genetics behavior and exposure to environmental factors.
This requires you to use all the things we have learned in this chapter. 1.55 grams of Carbon disulfide
is added to 2.83 grams of Oxygen to form Carbon dioxide and Sulfur dioxide. If the reaction yields
1.1 grams of the Sulfur dioxide what was the percent yield?
27%
14%
Ο Ο Ο Ο Ο
74%
42%
O 63%
Answer: The percent yield is, 42%
Explanation:
To calculate the moles :
[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]
[tex]\text{Moles of carbon disulphide}=\frac{1.55g}{76g/mol}=0.020moles[/tex]
[tex]\text{Moles of oxygen}=\frac{2.83g}{32g/mol}=0.088moles[/tex]
The balanced chemical reaction is:
[tex]CS_2+3O_2(g)\rightarrow CO_2+2SO_2[/tex]
According to stoichiometry :
1 moles of [tex]CS_2[/tex] require = 3 moles of [tex]O_2[/tex]
Thus 0.020 moles of [tex]CS_2[/tex] will require=[tex]\frac{3}{1}\times 0.020=0.060moles[/tex] of [tex]O_2[/tex]
Thus [tex]CS_2[/tex] is the limiting reagent as it limits the formation of product and [tex]O_2[/tex] is the excess reagent.
As 1 mole of [tex]CS_2[/tex] give = 2 moles of [tex]SO_2[/tex]
Thus 0.020 moles of [tex]CS_2[/tex] give =[tex]\frac{2}{1}\times 0.020=0.040moles[/tex] of [tex]SO_2[/tex]
Theoretical mass of [tex]SO_2=moles\times {\text {Molar mass}}=0.040moles\times 64g/mol=2.56g[/tex]
Actual mass of [tex]SO_2[/tex] = 1.1 g
Now we have to calculate the percent yield
[tex]\%\text{ yield}=\frac{\text{Actual yield }}{\text{Theoretical yield}}\times 100=\frac{1.1g}{2.56g}\times 100=42\%[/tex]
Therefore, the percent yield is, 42%
imagine you are a detective examining a crime scene you are trying to identify the person who committed the crime so you collect many samples at the crime scene which sample would be most useful in identifly the person who commited the crime A. a book found on the ground at the crime scene B. a pair of shoes found at the crime scene C. an uneaten burger and fries left at the crime scene D. a piece of fingernail found at the crime scene
Answer:
The answer would be D
Explanation:
Only logical answer here
Protein is needed for growth and repair.
The digestion of protein begins in the stomach and is completed in the small intestine,
What are the products of the digestion of protein.
Tick the correct box
amino acids
energy
sugars
vitamins
1 mark
Amino acids
O Energy
O Sugars
Vitamins
Answer:
Amino acids
Explanation:
Hope it helps.
How did the carbon, hydrogen and oxygen atoms in glucose and fructose combine to form sucrose? Include in your description which atoms bonded together from fructose and glucose to form sucrose and which atoms reformed to create a water molecule.
Answer:
oxygen atom and 1 hydrogen atom from the glucose molecule and 1 oxygen atom from the fructose molecule were taken to make the water molecule The rest of the atoms in the glucose and fructose molecule (glucose 6:carbon,11 Hydrogen,5 oxygen.Fructose 6 carbon:12 Hydrogen,5 oxygen.(combine to make sucrose(12 carbon,22 Hydrogen, 11 oxygen.Explanation:
Please,i need a Brainliest.
Answer:
1 oxygen atom and 1 hydrogen atom are taken from the glucose molecule and 1 oxygen atom from the fructose molecule will make a water molecule. Everything else from the glucose and fructose molecules will make sucrose.
What is the only item that can be reused in a self-service situation?
Select one:
a. Beverage Cups
b. Utensils
c. Straws
d. Plates
The action by which an object or item can be used more than once is called reuse. It is a method that reutilizes or repurposes things in the same or different manner from the former usage.
The item that can be reused at self-service is:
Option a. Beverage Cups
The items can be explained as:
Unopened or prepacked items like glassware and cups can be reused. The other items like utensils, plates and straws cannot be reused.The non-toxic cups can be washed again to reuse and can also be repurposed for other purposes.Other items like glass bottles can be reused in storing other liquid items.Thus, beverage cups can be reused.
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Which word identifies the hanging icicle-shaped formations in caves that are created by deposition?
Answer:
Stalactites
Explanation:
A stalactite is a type of formation that hangs from the ceiling of caves, hot springs, or manmade structures such as bridges and mines. Any material that is soluble, can be deposited as a colloid, or is in suspension, or is capable of being melted, may form a stalactite.
Answer:the answer is,
Stalactites
Explanation:
I just took the test
HELP!!!!!!!!!!!
Which are considered two of the special properties that are used to identify certain minerals?
O hardness and luster
O magnetism and fluorescence
O streak and color
O cleavage and fracture
Answer:
The answer is
2. magnetism and fluorescence
Explanation:
The other properties mentioned are common properties that are used to identify all minerals. As you can see, hardness, color and fracture are common properties that cut across all minerals. Magnetism and fluorescence however, are not very common and are found in only a few special minerals. That is why they are considered special properties.
Hope this helps!
magnetism and fluorescence are considered two of the special properties that are used to identify certain minerals. Thus option B is correct.
what are the properties to identify an object ?
Minerals are the chemical compound which has a well -defined composition and a specific crystal structure and occurs naturally in the pure form.
If a compound occurs naturally in different crystal form then it is referred as a different mineral. The chemical composition of a mineral varies depending on the presence of small impurities which are present in small quantities.
Some minerals can have variable proportions of two or more chemical elements which occupy equivalent position in the crystal structure; it has variable composition which is split into separate species.
minerals include color, streak, luster, specific gravity and cleavage as their physical properties, shows no magnetism. Basically magnetism is the physical property of the minerals, magnetism does not have these elements. thus, have no magnetism called diamagnetic. Examples of diamagnetic are quartz, apatite and calcite.
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Antimicrobial peptides can do all of the following except:_________A) regulate body temperature.B) target intracellular components.C) insert themselves into target cell membranes.D) disrupt plasma membrane and/or cell wall.E) stimulate leukocytes.
Answer:
Option A
Explanation:
Antimicrobial peptides cannot regulate body temperature. They can do all of the rest.
=> target intra cellular components.
=> insert themselves into target cell membranes.
=> disrupt plasma membrane and/or cell wall.
=> stimulate leukocytes.
Bats hunt using echolocation, in which they send and receive high frequency sounds to locate prey. When bats hear the sounds of others,
they typically begin hunting in the same area. As the number of bats hunting in the area increases, individuals become more successful at
locating and capturing prey.
Some populations of bats live in areas with high levels of noise pollution, such as near heavily trafficked bridges. How might the hunting
behavior of bats be affected by such an environment?
A
Bats would be less likely to hunt in groups, so an individual's success in catching prey would decrease.
B.
C.
Bats would be unable to use echolocation, which would prevent them from finding any prey.
Bats would be more likely to hunt in groups, so an individual's success in catching prey would increase.
Bats would be better able to use echolocation, which would improve their ability to find prey.
D.
Answer:
A
Simply the noise from heavy traffic will cause the destructive interference which reduces the echolocation,blocking the echoes and therefore prevent prey location for bats.
Generally this reduces the Bats' population, as some could not rely on the echo to locate the prey, leading to starving and death. Thus each bat needs to rely on the individual echolocation from the prey to survive as new hunting adaptation.Since the echolocations has been blocked
Answer:
Bats would be unable to use echolocation, which would prevent them from finding any prey.
Explanation:
WHEN ARE TREES CARVED UNDER WHICH CONDITIONS CAN IT GROW UP AGAIN?
Answer:
Explanation:
In critical conditions since when a forest is cut down if it rains the land is not in a condition for trees to flourish since every time it rains you will see a flood devastating any plant that tries to grow.
What stage of sleep usually comes after REM sleep?
Answer:
stage 1
Explanation:
just did it on a-p-e-x
NREM (non rapid eye movement ) is the stage of sleep comes before REM sleep.
What is sleep stage?Sleep stages are nothing but electrical wave activities in the brain. This wave movement is measured by an electroencephalogram (EEG). There are 2 main stages in our sleep such as REM and NREM.
The NREM is the first stage of the sleep cycle. It has 3 substages - N1, N2, N3 stages. In the N1 stage individuals feel sleepy, hallucinates. It is the light sleep stage and people can awake from this stage of sleep easily.
N2 stage is the next sleeping stage. In this stage, the electrical waves are more and called theta waves. Here, it is hard to awake. Sleep spindles, K - complex are found in this stage, which helps in a deep sleep.
REM or rapid eye movement is a deep sleep stage. It is also called paradoxical sleep. Here, the brain is more active and the body is paralyzed. During this stage a person dreams.
Therefore, NREM (non rapid eye movement ) is the stage of sleep comes before REM sleep.
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What is the primary cause of weather due to?
Answer:Temperature Wind Pressure Moisture. Sun.
Explanation:
Answer:
What is the primary cause of weather due to?
The answer is The state of the atmosphere.
Explanation:
I hope this helps :)
Domesticated dogs are descended from wolves, and modern dog breeds are the result of artificial selection. Imagine that you were given a population of wolves and asked to
ultimately produce Chihuahuas (if you don't know this breed of dog, please Google it).
1. If you had a bunch of wolves and wanted a Chihuahua, how you create one? List just one thing you would do.
2. Explain how your strategy would work.
Hint: Think about what you learned about natural selection.
Answer:
organisms acclimate over time is by adapting to their habitats and their ecosystem. If i were to make a population of wolves into a chihuahua i would make sure that the habitat is smaller and also the amount of resources available should be less than what they are used to. This should cause them to become smaller to help preserve energy.Once they breed and a favorable genetic is present, that wolf is used to breed with another wolf that has a genetic mutation that would make it smaller and more domesticated. By taking genetic mutations that are a result from these changes you can get a wolf to be more domesticated and become smaller. like a chihuahua
When being delivered dairy products are always inspected for …
Select one:
a. Within expiration date.
b. Correct temperature (41 °F or lower).
c. Clean, undamaged packaging.
d. All of these.
Answer:
d. All of these
Explanation:
food, especially food that can sour and expire such as dairy, has to met certain standards before it's released to the public. it can't be expired, it must be kept in cooler temperatures, and the packaging should be nice as to appeal to the buyer more but mainly to make sure nothing got in and contaminated it.
the procces of filtration occures at the
Answer:
The process of filtration (or filtrate formation) occurs at the filtration membrane.
Explanation:
The filtration membrane is located at the boundary between the glomerulus and Bowman's capsule.
:)
Why might damage to the nervous tissue in the spinal cord lead to paralysis?
Answer:
Spinal cord functions in carrying the sensory impulses to the brain and motor impulses from the brain that helps in the voluntary and involuntary movement of the body.
Paralysis affects the bodily functions asthe nerves in the brain unable to communicate with parts of the body.
Damage to nervous tissues in spinal cord leads to loss of sensory impulse to muscles to produce movement. Due to damaged nervous tissues body get inable to differentiate between voluntary and involuntary movement and it lead to paralysis.
Answer:
B. Damage results in the inability of the body to differentiate between voluntary and involuntary movement
Sara was hit in her head during a collision on the soccer field. As a result, Sara is having difficulty with balance and implicit memories. Sara probably damaged her:_________. 1. reticular formation pons 2. amygdala 3. thalamus 4. cerebellum
Answer:
The correct answer is option 4. cerebellum.
Explanation:
The cerebellum gets information from the sensory system, the spinal cord, and different pieces of the brain and afterward regulates motor movements. The cerebellum organizes voluntary developments, for example, balance, posture, coordination, speech, and balanced muscular activities.
It also deals with the short term or implicit memory. If Sara injured her head and found having difficulty with balance and implicit memories. Sara probably damaged her cerebellum.
Thus, the correct answer is option 4. cerebellum.
The Punnett square shows the results when two parent cows are crossed.
R represents the allele for red hair, and r represents the allele for white hair.
Which best describes this inheritance pattern?
A) Incomplete dominance because the intermediate form of the trait is chosen
B) Co-dominance because the intermediate form of the trait is chosen C) Incomplete dominance because the offspring display alleles for both hair colors
D) Co-dominance because the offspring display alleles for both hair colors
Answer:
A
Explanation
the red haired trait is dominant over the white haired trait. and the results are all red haired offspring. therefore its incomplete dominance
The correct option is D) Co-dominance because the offspring display alleles for both hair colors.
What is Co-dominance?Co-dominance refers to a phenomena, in which both alleles are simultaneously expressed in the heterozygote.
Incomplete dominance is closely related to Co-dominance in which phenotype of the progeny is intermediate of the parent phenotype.
Here, the red haired trait is dominant over the white haired trait and still both alleles are simultaneously expressed in the heterozygote of the offspring with red and white hair traits, thus, the Co-dominance best describes this inheritance pattern.
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can solor activity cause climate change ?
Answer:
"It has been suggested that changes in solar output might affect our climate—both directly, by changing the rate of solar heating of the Earth and atmosphere, and indirectly, by changing cloud forming processes..."
- quoted from Google
Explanation:
So yes, it can cause climate change depending on what kind of activities occurs in the solar system.
Match the chemical reaction with its correct type.
1. Nat + Cl → NaCl
decomposition reaction
2. CCIA C + 2Cl2
exchange reaction
3. HCl- + NaOH → NaCl + H2O
reversible reaction
4. ADP + P + E = ATP
synthesis reaction
hope it will help uh.....
Answer:
Match the chemical reaction with its correct type.
1. Nat + Cl → NaCl
decomposition reaction
2. CCIA C + 2Cl2
exchange reaction
3. HCl- + NaOH → NaCl + H2O
reversible reaction
4. ADP + P + E = ATP
synthesis reaction
Explanation:
Match the chemical reaction with its correct type.
1. Nat + Cl → NaCl
decomposition reaction
2. CCIA C + 2Cl2
exchange reaction
3. HCl- + NaOH → NaCl + H2O
reversible reaction
4. ADP + P + E = ATP
synthesis reaction
When two atoms combine by transferring electrons, it is a(n) _____ bond.
ionic
covalen
Answer:
Ionic bonds are formed when electron are transferred
In which kind of solution is the concentration of solutes the same inside and outside of the cell? isotonic hypertonic hypotonic concentrated
Answer:
isotonic solution
Explanation:
An isotonic solution has the same concentration of solutes both inside and outside the cell. For example, a cell with the same concentration of salt inside it as in the surrounding water/fluid would be said to be in an isotonic solution.
The solutions can have various concentrations of the solutes dissolved in them. Isotonic solutions have the same concentration of solutes inside and outside the cell. Thus, option a is correct.
What are isotonic solutions?Isotonic is the type of solution that has a similar concentration of the solutes on both sides of the system like sugar and salt in the blood or body fluid. They are the essential part of the body fluid and for the balance of osmosis and diffusion.
The tonicity of the solution plays an important role in the transport mechanism and in the balance of the fluid concentration in the organism. In a hypertonic solution, the concentration is at higher levels and in hypotonic, they have fewer concentrations.
Therefore, the concentration of solutes is the same in and out of the cell in isotonic conditions.
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Question 11 (5 points)
Which of the follow best decribes the function of a ligament?
Connect muscles to other muscles
Connect muscles to the nervous system
Connect bones to other bones
Connect muscles to bones
Answer:
Connects Bones to other Bones.
Explanation:
A ligament is a tissue that connects two bones together to form a joint.
Answer:
connect bones to other bones
Explanation:
Ligaments connect bones to other bones. Tendons connect bones to muscles.
The cells in this part of a plant form long, vertical tubes. What is the mostlikely relationship between the structure and function of these specialized cells? A. The tubes allow the plant to absorb sunlight for photosynthesis. B. The tubes prevent potential damage to the leaves caused by strong winds. C. The tubes prevent water loss from the leaves. D. The tubes allow water and nutrients to be transported throughout the plant
this is xylem and the answer is D. The tubes allow water and nutrients to be transported throughout the plant
Key deer are found only on certain islands in the Florida Keys. Populations are typically small enough that genetic drift has caused significant deviation among populations on different islands. For example, the population on No Name Key has allele frequencies of A1 = 0.43 and A2 = 0.57 while the population on Big Pine Key has allele frequencies of A1 =0.21 and A2 = 0.79. Construction of roads has recently increased migration rates between these populations to approximately 0.08 per generation. What will the frequency of A1 be on Big Pine Key after a single generation of migration from No Name Key?
Answer:
The frequency of A1 be on Big Pine Key after a single generation of migration from No Name Keyp is 0.2276
Explanation:
Whenever it occurs migration between two populations, there is genetic flux going on. Genetic flux might be considered as an evolutive strength only if migration > 0 and if the allelic frequency in one generation is different from the allelic frequency in the next generation.
Genetic flux acts homogenizing the allelic frequencies between the two populations, and it might introduce variability.
By knowing the allelic frequencies in both populations at a certain time and the migration rate, we can calculate the allelic frequencies of populations in the next generation. This is:
pA₂=pA₁(1-m)+pB₁ m
pB₂=pB₁(1-m)+pA₁ m
Being
A one population and B the other population pA₁ and pB₁ the frequencies of the p allele before migration, pA₂and pB₂ the frequencies of the p allele after migration, m the migration rateIn the exposed example, we know that:
No Name Key population allelic frequency: A1 = 0.43 and A2 = 0.57Big Pine Key population allelic frequency: A1 =0.21 and A2 = 0.79Migration rate m=0.08Let´s say that p represents A1 allele, and q represents A2 allele.
The frequency of A1 allele (p) be on Big Pine Key (Population B) after a single generation of migration from No Name Key (Population A)
pB₂=pB₁(1-m)+pA₁ m
pB₂=0.21 x (1 - 0.08) + 0.43 x 0.08
pB₂= 0.2276
The allelic frequency in a population after one generation is the allelic frequency of individuals of that population that did not migrate (21 x (1 - 0.08) plus the allelic frequency of the new individuals that came from the other population (0.43 x 0.08).
You can corroborate your result by calculating the q allele frequency in the next generation and summing both of them up. The result should be one.
qB₂= qB₁(1-m)+qA₁ m
qB₂= 0.79 x (1 - 0.08) + 0.57 x 0.08
qB₂= 0.7724
p + q = 1
0.2276 + 0.7724 = 1
why don't dog's sweat
Answer:
Dogs do sweat. Sweating is a physiological response to heat where sweat glands secrete salty water. ... The problem is that most dogs are covered with a thick coat of fur, so sweat secreted where there is fur would get trapped in the fur, fail to evaporate, and therefore fail to cool the dog down much.
:
Explanation:
They do sweat. but that is absorbed by the fur of dog.
hope it helps
Which resource of the ocean floor is not currently being used, but in the future could become an important energy source?
Answer:
Deep sea creatures and mineral wealth can become a potential energy source.
Explanation:
Deep-sea organisms community that lives deep down near the ocean floor have not been fully explored and thus their holds a potential energy source for the future generations. To extract these deep ocean creatures and make use of their special abilities that can be used as an energy source. The use of deep mining projects can extract many unknown hidden resources that are potential for the future. The corals that live on the ocean floor are also a potential resource for man in the future.For a population to be in Hardy-Weinberg equilibrium, the population must be
Answer:Not experiencing migration.