Which statements describe functions of antibodies? Select two options.
They maintain the cell’s shape.
They regulate cell processes.
They protect the body from infectious agents.
They signal the immune system to destroy pathogens.
They speed up biochemical reactions.
They send electrical signals
Answer:
They protect the body from infectious agents.
They signal the immune system to destroy pathogens.
Explanation:
Answer:
They protect the body from infectious agents.
They signal the immune system to destroy pathogens.
Explanation:
The answer above is correct.
Convert the speed of light in km/sec to mph
Pls give step by step
Answer: 1 kilometers per second = 2236.94 miles
Explanation:
o convert from kilometers per hour to miles per hour, divide the measurement in kmph by 1.609344 to get the equivalent in mph.
By having juvenile dinosaurs live in a different niche than the adults decreased competition between the adults and juveniles. True or False
True: By having juvenile dinosaurs live in a different niche than the adults decreased competition between the adults and juveniles.
Tarbosaurus bataar is the juvenile species of the dinosaurs found 70 million years ago. The adult species the Tyrannosaurus rex has a close relationship with the juvenile or the young species. The juvenile species of these dinosaurs lived in a different niche than the adult species. They were fast and agile and went after hunting smaller prey for their survival.
T.rex adults were comparatively larger than their younger ones. They had larger skulls, stronger bites, large muscle attachments, and specialized teeth. While the juvenile species were deprived of these features. This could be the reason why juvenile species faced decreased competition than adults.
Therefore, from the above answer, we can say that the given statement that having juvenile dinosaurs live in different niches than the adults decreased competition between the adults and juveniles.
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Why is the plasma membrane important for the cell?
Answer & Explanation:
The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. And that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
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A student observes two objects in space with his telescope. Both objects are seen orbiting the Sun. Which two objects are most likely observed by the student?
a comet and an asteroid
a meteorite and a comet
a meteor and an asteroid
a meteor and a meteorites
The two objects that are most likely observed by the student orbiting the sun are a comet and an asteroid (option A).
What is a comet and asteroid?A comet is a celestial body consisting mainly of ice, dust and gas in a very eccentric orbit around the sun.
Also, an asteroid is a naturally occurring small, rocky object that orbit the sun. Although asteroids orbit the sun like planets, they are way smaller than planets.
According to this question, a student observes two objects in space with his telescope. Both objects are seen orbiting the Sun.
Therefore, it can be concluded that the two objects that are most likely observed by the student orbiting the sun are a comet and an asteroid.
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Name a cell structure you think cells could do without. Then, in a couple sentences, describe how you think why it isn't necessary and/or how other cell structures could take over its role.
There is no cell structure that living cells could live without as cellular structures have function which is peculiar to a part of life process and once any of these structure is removed, life ceases.
This is because the presence of cellular structures in cells of living organisms makes them to live and without these structures, life would not continue.
Living cells cannot function without cellular structures such as nucleus, ribosomes, mitochondria, endoplasmic reticulum and others.
What does a cell means in biology?A cell can simply be defined as the simplest unit of life. All living organisms be it unicellular or multicellular organisms is made up of cell.
The protoplasm of any living cell is made up of nucleus and cytoplasm.The organelles which are found in the cytoplasm are called cytoplasmic organellesSo therefore, there is no cell structure that living cells could live without as cellular structures have function which is peculiar to a part of life process and once any of these structure is removed, life ceases.
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A mitosis inhibitor is a medication that is designed to prevent mitosis in certain cells. Why would these be helpful in the the treatment of tumors?
Through ongoing mitosis, cancer cells can multiply and eventually spread throughout the body (metastasize). Therefore, compared to normal cells, cancer cells are more sensitive to mitotic suppression.
Describe a mitosis:In the cell duplication process known as mitosis, one cell divides into two genetically identical daughter cells. The cell's chromosomes are duplicated throughout the process of mitosis and then divided equally between the two daughter cells' two new nuclei.
What are the four mitosis stages explained?Prophase, Metaphase, Anaphase, and Telophase are the names of the four phases of mitosis. We will also discuss three more intermediate stages (cytokinesis, prometaphase, and interphase) that are involved in mitosis. Nuclear division takes place during the four stages of mitosis to divide one cell into two.
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a company sells a sealed glass globe called an "ecosphere" (true story). in the globe, there is water and aquatic plants and animals. Air cannot get into or out the globe because it is entirely sealed. Yet, the animals and plants can survive indefinitely within the globe. a. Explain how it is possible that animals and plants can survive in a sealed environment together.
Answer:
The conservation of mass and energy comes into play.
Energy is not a problem since sunlight can go through glass. The plants will grow and reproduce, producing oxygen that enters the water. Animals eat plants and get energy from them. They too grow and reproduce. They also release carbon dioxide into the water, which plants use to make food.
This cycle can continue forever, or at least for a long time.
Answer:It is possible that animals and plants can survive in a sealed environment together because there is food and water inside the globe for the animals and plants.
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1 Answer:
HACCP is a program designed to create awareness of potential points
of contamination in a food-processing facility.
a. true
b. false
2 Answer:
A bacteriostatic agent uses static electricity to remove bacteria
from a surface.
a. true
b. false
3 Answer:
The three major sources of contamination in a food processing plant
are people, processing equipment, and the plant environment.
a. true
b. false
4 Answer:
Water hardness is a measure of the presence of substances in water
that form insoluble precipitates with soap.
a. true
b. false
5 Answer:
The floor of a food processing facility should have an unfinished
concrete surface for easy cleaning.
a. true
b. false
6 Answer:
A _____ hazard is generally a microbe such as a bacterium, virus,
or parasite.
a. biological c. deleterious
b. physical d. chemical
7 Answer:
In a food processing plant, _____ are probably the biggest source
of contamination.
a. employees' hands
b. food preparation surfaces
c. tools and equipment used to handle food
d. employees' feet and shoes
8 Answer:
Procedures developed over time to ensure the production of safe and
wholesome food and to provide a safe working environment are called
_____ practices.
a. sanitization c. good manufacturing
b. post-production d. facility management
9 Answer:
A food-preparation surface that will not rust or deteriorate as a
result of continuous applications of water is said to be _____ resistant.
a. aquatically c. continually
b. corrosion d. sanitizer
10 Answer:
The maintenance of overall cleanliness and hygiene in the food
processing environment is known as food _____.
a. safety c. galvanizing
b. sanitation d. HACCP
Answer:
question number one the answer is a
Some molecules are too large to pass through the cell membrane without the assistance of a protein channel. The process of molecules travelling along their concentration gradient through protein channels is called – *
Some molecules are too large to pass through the cell membrane without the assistance of a protein channel. The process of molecules traveling along their concentration gradient through protein channels is called facilitated diffusion.
The process of spontaneous passive movement of molecules or ions across a biological membrane by particular transmembrane integral proteins is known as facilitated diffusion.
A form of passive transport is facilitated transport. In contrast to simple diffusion, where substances flow across a membrane without the aid of membrane proteins, substances diffuse across the plasma membrane with the aid of membrane proteins in assisted transport, also known as facilitated diffusion.
Facilitated diffusion is significant because it controls what enters and exits the cell. The cellular component that controls the selective transport of chemicals is the plasma membrane. Facilitated diffusion is illustrated by the movement of amino acids and glucose into cells from the circulation. These molecules are ingested through active transport in the small intestine and then released into circulation.
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Distinguish between the terms in each of the following pairs
of terms.
The population density decreases as the number of individuals in an area increases.
(If you choose false, type the word you would replace decreases with)
The statement that population density decreases with the number of people in a place is false.
What is population density?The population density, or the number of people divided by the area's size, is determined by the number of people who reside there. Many different creatures' distribution, growth, and migration can all be described using population density.
How is population density calculated?To calculate density, divide the number of objects by the area's dimensions. A country's population density is calculated by dividing its total population by its area, measured in square kilometers or miles. Singapore is one of the nations with the densest populations in the entire planet.
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The lobes of the cerebral cortex are MOST directly involved in speaking.
According to the research, the correct option is frontal lobe. The frontal lobe of the cerebral cortex is MOST directly involved in speaking.
What is the front lobe?It is the area of the brain that is located in the most anterior part of the head, and it is essential for the human being since it works to plan and coordinate the speaking and social behavior of each individual.
In this sense, working memory, speaking and the articulation of words, movement or self-awareness depend on the frontal lobe, also the prefrontal cortex is located, which is broader and has relationships with many brain structures.
Therefore, we can conclude that according to the research, the correct option is frontal lobe. The frontal lobe of the cerebral cortex is MOST directly involved in speaking.
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Energy is converted from solar to chemical in Process A and then from one form of chemical to another in Process B.
Which is described by Process A?
photosynthesis
cellular respiration
Answer:
The answer is
→ A.) Photosynthesis
or
Artificial photosynthesis
Explanation:
Converting solar energy into chemical energy using artificial photosynthesis is simple and safe for the environment. Nitrogen fixation and photocatalytic water splitting are the two most often researched solar-to-chemical conversion (SCC) processes.
Hence, the answer to this question is photosynthesis.
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- ✨7272033Alt✨Which statement describes the government of the United States after the American Revolution?
O A new democracy was formed.
It remained under British rule.
A constitutional monarchy was formed.
O Colonists were given representation in Parliament.
Answer:
Explanation:
b
It remained under British rule is a statement describes the government of the United States after the American Revolution.
What is American Revolution?As a small, newly independent nation gained its independence from the most powerful military power of the day, the Revolutionary War fought by the American colonies against Britain had an impact on political ideologies and revolutions all over the world.
During the American Revolution, British colonists in America rose up in revolt against Great Britain's sovereignty. After numerous battles, the colonies were emancipated and formed the independent nation of the United States. From 1775 through 1783, the American Revolutionary War raged.
There were various British Colonies in the Americas prior to the American Revolution. They didn't all take part in the revolution.
Therefore, It remained under British rule is a statement describes the government of the United States after the American Revolution.
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psychology; sensation and perception essay 250 words or more
Psychology; Sensation and perception Essay:
Perception involves more than simply combining sensory stimuli; therefore, perception is studied as Gestalt.
According to gestalt view, every individuals had the ability to develop our own mind self-organization which will influence how we response to a certain stimulus and how to analyze it in order to produce the best possible decision. Also Colloquially these people are called brain scientists. At least for cognitive psychologists that is. That is because they study how your brain works and how you perceive things and can even change that with their results. They can prescribe medication that can help change your behavior.
which of the Baltimore Classification groups does COVID-19 falls under and why?
The Baltimore Classification groups that COVID-19 falls under is known to be Sarbecovirus subgenus of the Betacoronavirus genus. The reason why is because it is of the Betacoronavirus genus.
What is the Baltimore Classification?
The Baltimore Classification System is known to be a kind of a scheme that is said to be used in classifying viruses based on the type of genome as well as its replication strategy.
Note that the The Severe Acute Respiratory Syndrome Corona Virus-2 which is called the (SARS-CoV-2) is one that has lead to the issue odf COVID-19 pandemic.
Therefore, based on the above, The Baltimore Classification groups that COVID-19 falls under is known to be Sarbecovirus subgenus of the Betacoronavirus genus. The reason why is because it is of the Betacoronavirus genus.
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Baltimore Classification groups do COVID-19 fall under the coronavirus family.
Which of the Baltimore Classification groups does COVID-19 fall under and why?The Baltimore Classification System is a type of system for the classification of viruses that is based on the type of genome and its replication. The system was developed by David Baltimore. Viruses do not contain a proper system for the translation of protein, we know that every virus depends on host translational machinery. COVID-19 is caused by the virus known as SARS-CoV-2. It is part of the coronavirus family, which includes common viruses that cause a variety of diseases from head or chest colds to more severe (but rarer) diseases such as severe acute respiratory and the Middle East respiratory syndrome
we can conclude Baltimore Classification groups do COVID-19 fall under the coronavirus family.
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Create a mnemonic device to remember the levels of organization. atom - molecule organelle - cell - tissue - organ-organ system - individual - population - community - ecosystem - biome - biosphere
King Philip Came Over For Good Spaghetti is a mnemonic given to the students to help them recall the stages of biological taxonomy (Kingdom, Phylum, Class, Order, Family, Genus, Species).
This mnemonic is easy to learn.
The scientists classify living things according to their biological characteristics. According to how similar they are, organisms are categorized.
In the past, the similarity was assessed by looking at an organism's physical traits, but modern classification makes use of a number of methods, including genetic analysis.Biological classification is the process of identifying traits in living things and classifying them according to those traits.It facilitates the accurate identification of different organisms. Understanding the history and evolution of organisms is useful.It aids in pinpointing the organism's precise categorization location.Learn more about biological classification here:
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A student investigates the characteristics of two objects in space.
Object X Object Y
made of ice and dust made of rock
takes more than 100 years to orbit the Sun takes about 4 years to orbit the Sun
Which statement BEST describes the objects?
A student investigates the characteristics of two objects in space.
Object X Object Y
made of ice and dust made of rock
takes more than 100 years to orbit the Sun takes about 4 years to orbit the Sun
Which statement BEST describes the objects?
Object X is a comet, and Object Y is a meteor.
Object X is a comet, and Object Y is an asteroid.
Object X is an asteroid, and Object Y is a comet.
Object X is an asteroid, and Object Y is a meteor.
Based on the description of the two spatial objects, object X is a comet while object Y is an asteroid (option B).
What is a comet?A comet is a celestial body consisting mainly of ice, dust and gas in a eccentric orbit around the sun and having a "tail" of matter blown back from it by the solar wind as it approaches the sun.
On the other hand, an asteroid is a naturally occurring solid object made of rocks, which is smaller than a planet and is not a comet, that orbits a star.
It takes anywhere from three to six earth years for an asteroid to make a complete revolution around the sun. Comets, on the other hand, take more than a hundred years to revolve around the sun.
Therefore, based on the description of the two spatial objects, object X is a comet while object Y is an asteroid.
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PLEASE HELP ME!!!! A microbiologist ran some tests on pure enzymes extracted from a pathogenic bacterial strain. She found that Compound Z was a potent inhibitor of an enzyme essential for DNA replication. In subsequent tests, however, when the scientist incubated bacterial cultures in media containing high concentrations of Compound Z, she observed no effect on the bacteria. Pose a scientific question the scientist might use to pursue additional research on this topic.
The scientific question I will pose is "what is the effect of concentration on enzyme activity?"
What is the effect of concentration on enzyme?Enzymes are proteins that takes part in chemical and biological reactions without being destroyed at the end of the reaction.
The factors that affect the efficacy of enzymes include the following:
Temperature,pH andConcentration.From the experiment carried out by the microbiologist, the enzyme Compound Z was found to be a potent inhibitor of another enzyme in bacteria which is essential for DNA replication.
When the concentration of this enzyme ( compound Z) was increased, it had no effect on the bacteria enzyme.
This was because compound Z enzyme's activity was greatly affected by the change in concentration.
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Describe the three patterns of communication
The three patterns of communication include:
Verbal CommunicationThe most evident kind of communication would appear to be verbal communication. It makes use of spoken language, either in-person or over the phone. Although most encounters need verbal communication, there are other nonverbal indicators that can add to the meaning of the words themselves. A more sophisticated message is conveyed when spoken language is combined with nonverbal communication.Non-verbal CommunicationThe use of body language might reveal some information about a speaker's word choice. It can reflect sarcasm, complacency, dishonesty, or sincerity. Body language, including the speaker's posture, hand gesture, facial expressions, and even look, is a common way to communicate these things. A untidy speaker with wrinkled clothes and slouching posture, for example, might convey a lack of assurance or knowledge. Visual Communication Signs, maps, and drawings, as well as color and graphic design, are all examples of visual forms of communication. These frequently support verbal communication and aid in proving a point. Visual aids can aid in the presentation of the message by helping the speaker remember key points, providing the audience with something to look at, and more.Learn more about communication here:
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Which type of biological population growth explains a seasonal swarm of locust?
A. Stable
B. Irruptive
C. Irregular
D. Predator and Prey
The type of biological population growth which explains a seasonal swarm of locust is referred to as Irruptive and is therefore denoted as option B.
What is Irruptive growth?
This type of growth which is characterized by the species of organisms having a sudden rapid growth or explosion which is followed by a sudden crash or die-back.
This is common in organisms who are prevalent in certain periods of the year such as the locust in the rainy season. They can be seen in large quantities and after a while their population is reduced again and then the cycle goes on.
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2.In Figure 4B-1, the leading edge of the Arctic air mass was across northern Texas and the
Panhandle. From roughly Tulsa, OK southwest to Dallas/Ft. Worth and Midland, TX, a(n)
front curved southwestward, with bitterly cold air to the north of the front and milder,
warmer air to the south and west. The greatest thermal contrast was from Midland, TX to
Wichita, KS.
a.warm
B.Stationary
C.cold
D.occluded
The leading edge of the Arctic air mass in Figure 2 reached Texas. At 14Z, the front had just pushed through the southernmost city of Brownsville, TX where a cold front curved westward into Mexico, with bitterly cold air north (behind) of the front. (Option C).
What is Artic Air Mass?
Because the Arctic air mass is extremely cold and dry, it creates the Cold Front. Arctic air masses, are extremely frigid due to their origin in the Arctic or Antarctic regions. Polar air masses, are not as frigid as Arctic air masses since they originate at higher land and sea latitudes.
What are the traits of Artic Air Mass?An arctic maritime air mass has comparable properties to a polar maritime air mass, but the air is colder and less moist due to the shorter sea track.
Arctic air is uncommon in the summer, but when it does arrive, it can bring heavy rain or thunderstorms as well as very low temperatures.
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Why do developed countries typically have a smaller population employed in
agriculture?
Identify some characteristics a species may possess that would fuel its ability to cause ecological damage, as the brown tree snake has in Guam.
Overpopulation and food competence are the most important features for which a native species may cause important ecological damage.
What is overpopulation?Overpopulation is a phenomenon in which a population of a given species is over-represented in the ecosystem, which may lead to important disturbances in the homeostatic equilibrium
The lack of homeostatic equilibrium may lead to extinction of competing species and act as a predator of organisms below in the trophic chain.
In conclusion, overpopulation is one of of the most important features for which a native species may cause important ecological damage.
Complete question:
The brown tree snake is native in areas such as Australia and eastern Indonesia. In those ecosystems, the brown tree snake is not causing the decline of bird or tree populations. So what makes this same species damaging in Guam? Identify some characteristics a species may possess that would fuel its ability to cause ecological damage, as the brown tree snake has in Guam. Provide some reasoning for why you chose these characteristics.
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The graphs below show the distribution of heights among people who live in four different countries. On average, which country has the tallest people?
A. W
B. Z
C. X
D. Y
Country Z has the tallest people on an average. Therefore, option (B) is correct.
A distribution graph, also known as a frequency distribution or histogram, is a visual representation of the distribution or spread of a dataset. It displays the frequencies or counts of different values or intervals within a dataset.
The graph consists of a horizontal or vertical axis representing the values or intervals of the variable being measured, and a vertical axis representing the frequency or count of each value or interval. The graph typically consists of bars or columns where the height or length of each bar corresponds to the frequency or count of the corresponding value or interval, providing a visual representation of the data's distribution.
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When lan connects the wires to the battery, an electric current passes through the wire and the bell rings.
What is transferred by the electric current?
OA. force
OB. sound
OC. light
OD. energy
Energy is transferred by the electric current.
Any movement of subatomic charged particles (such as electrons with a negative charge) or ions (atoms that have gained or lost one or more electrons), holes, or other electric charge carriers (protons with a positive charge), constitutes an electric current (electron deficiencies that may be thought of as positive particles).
The electric current in a wire, where electrons serve as the charge carriers, is a measurement of the amount of charge that moves through any point of the wire in a given amount of time. Electric charge motion is occasionally reversed in the alternating current but not in the direct current. In many situations, the flow of positive charge in an electric circuit is assumed to be the direction of the current, which is the direction that the electrons actually drift in.
An electric current distributes the battery's energy to the elements of the circuit. Nothing in this procedure "uses up" any current. Negatively charged electrons, which are constantly present in the circuit's wires and other parts, are the most common type of moving charged particle.
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Energy is transferred by the electric current.
Electric Current is rate of flow of electrons in a conductor. The SI Unit of electric current is the Ampere.
Electrons are negatively charged particles and when they move, a number of charges moves, and this movement of electrons is called electric current.
It should be noted that the number of electrons that are able to move tells about the ability of a particular substance to conduct electricity
The electric current in a wire, electrons serve as the charge carriers, is a measurement of the amount of charge that moves through any point of the wire in given amount of time. Electric charge motion is occasionally reversed in the AC but not in the DC.
In many situations, the flow of positive charge in an electric circuit is assumed to be the direction of the current, which is the direction that the electrons actually drift in. An electric current distributes the battery's energy to the elements of the circuit. .
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What are the possible benefits and drawbacks of today's system of
taxation?
Disadvantages of Taxation:
Putting in place an income tax system is quite difficult, especially when trying to control the wealthy and companies.Wealthy people benefit from tax evasion and dishonest avoidance because they can afford to pay for expensive tax "help." Warren Buffet, the famed investor, has been quoted as saying that it is unjust that his secretary pays 30% in taxes but Buffet only has to pay 17% on his income.Some contend that an earnings tax, regardless of its level, may cause financial hardship for people in the lower middle class and lower social classes. Any reduction, no matter how minor, can cause households that are barely making ends meet to significantly lower their standard of living.Advantages of Taxation:
The income tax enables progressive taxing based on your income. In terms of percentage, a person making $15,000 a year will pay less than a person making $150,000 a year. This method of wealth distribution works well.The existing arrangement also provides the government with a reliable source of income.An income tax creates a discrepancy between the value of a person’s work and what they actually receive (disposable income).Learn more about taxes here:
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Choose ONE example of each type of organism and list its common name.
Answer:
Bees, vernacular name
Explanation:
Which set represents the same relation as the graph below?
55
4
128
"
4
P
458 x
(4-2-2-3-2-1MNQN64(40)
{(54(3-2-1-A(206EREN6-1)}
(-546-3-133436-4}
(4-2-32-12208a64). Edge
Answer:
B. {( -1,-2 ), ( -3,-2 ), ( -5,4 ), ( 2,0 ), ( 3,3 ), ( 4,5 ), ( 6,-4 )}
Explanation: