what isotope(s) are present in the molecule that presents the following mass spectrum?
Answers
The 13 C isotope is, of course, heavier than 12 C by 1 mass unit. In addition, about 0.015% of all hydrogen atoms are actually deuterium, the 2 H isotope. So the M+1 peak represents those few acetone molecules in the sample which contained either a 13 C or 2 H. The correct option is C)13C, 1H,2H, 35Cl, and 37CI. isotope(s) are present in the molecule that presents a mass spectrum.
To determine the isotope(s) present in a molecule's mass spectrum, we need to analyze the peaks in the spectrum and their corresponding intensities. The peak positions indicate the molecular weight of the molecule and the relative intensities give us information about the abundance of different isotopes.
Suppose the mass spectrum shows a peak at 100 m/z with an intensity of 100%, a peak at 101 m/z with an intensity of 50%, and a peak at 102 m/z with an intensity of 25%. This pattern suggests the presence of two isotopes: one with a mass of 100 and an abundance of 100%, and another with a mass of 101 and an abundance of 50%.
We can further analyze the spectrum to determine the specific isotopes present in the molecule. For example, if the molecule contains carbon, we can look for the presence of carbon-12 and carbon-13 isotopes, which differ in mass by 1 atomic mass unit.
By comparing the observed mass peaks with the expected peaks for different isotopic combinations, we can identify the isotopes present in the molecule. Overall, the specific isotope(s) present in a molecule's mass spectrum depends on the chemical composition of the molecule and the conditions of the mass spectrometry experiment.
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The complete question is:
What isotope(s) are present in the molecule that presents the following Mass Spectrum? 100 80 60 Relative abundance - - 40 20 1 0 0 0 20 40 60 80 100 120 140 m/z 13C only 13C- and 1H-only 13C, 1H,2H, 35Cl and 37CI. 13C, 1H,2H, 79Br, and 81Br. 2H only.
Related Questions
the occipital bone articulates with how many bones
Answers
The occipital bone is set at the rear of the cranium and articulates with the temporals, sphenoid, parietals, and the uppermost vertebra, the atlas.
Therefore, the are 4 bones
The occipital bone articulates with several bones, including the temporal bones, parietal bones, and atlas vertebra.
The occipital bone is a skull bone located at the back of the head and forms the base of the skull. It is connected to several other bones of the skull through articulations. The occipital bone articulates with a total of six bones. The two parietal bones articulate with the lateral borders of the occipital bone. The occipital bone also articulates with the temporal bone on either side of the skull. The sphenoid bone, which is located in the center of the skull, articulates with the basilar part of the occipital bone. Lastly, the atlas, which is the first cervical vertebra, articulates with the occipital condyles on the occipital bone. This articulation allows for the movement of the head in a nodding motion. The occipital bone plays an important role in protecting the brain and spinal cord, as well as providing attachment sites for several muscles of the head and neck.
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Read this Pulmonology Consult excerpt:On physical exam, the patient is alert. He takes occasional pauses when he says long sentences, but otherwise, he is not in any distress. He has an occasional cough during his exam. His skin is pink and dry, and his lips are moist. His heartbeat is regular in rate and rhythm, without a murmur. On lung examination, he has whispered pectoriloquy on the right side with decreased breath sounds. He does not have any retractions or nasal flaring noted. His liver and spleen are not large.According to the excerpt, what was found upon lung examination on the right side?A. "Whispered pectoriloquy" - a chest that protrudes like the keel of a ship when the patient whispersB. "Whispered pectoriloquy" - "speaking from the chest"; used as a means of finding masses in the lung. The whispered word is audible in areas where fluid or a mass is presentC. "Retractions" - reverberations in the chest when it is struckD. "Retractions" - a dull sound in the chest when it is struckE. "Whispered pectoriloquy" - a chest that is hollowed out when the patient whispers
Answers
Answer:
B. "Whispered pectoriloquy" - "speaking from the chest"; used as a means of finding masses in the lung. The whispered word is audible in areas where fluid or a mass is present
Explanation:
Auscultation in medicine, is the action of listening to sounds from the heart, lungs, or other organs, usually using a stethoscope, in order to perform medical diagnosis.
Auscultation is performed for the purposes of examining the circulatory and respiratory systems, as well as the alimentary canal. The procedure is best performed in a quiet examination room. A stethoscope is used to magnify internal sounds. Small changes in breath sounds are carefully observed in order to make a diagnosis.
Whispered pectoriloquy is used to detect vocal resonance. It is used as a means of finding masses (consolidations e.g. pus) in the lung and is performed by having the patient quietly whisper a word. If fluid or a mass is present, words that are whispered may be heard clearly.
Write two sentences using the vocabulary words above about plant cells:
Answers
Answer:
Cells are the basic unit of a living organism and where all life processes are carried out. Animal cells and plant cells share the common components of a nucleus, cytoplasm, mitochondria and a cell membrane. Plant cells have three extra components, a vacuole, chloroplast and a cell wall.
Explanation:
Write a short note on broyophytes?
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Answer:
Bryophytes are an informal group consisting of three divisions of non-vascular land plants: the liverworts, hornworts and mosses. They are characteristically limited in size and prefer moist habitats although they can survive in drier environments. The bryophytes consists of about 20, 000 plant species.
\(\underline{QUESTION:_}\)
\(Write~ a ~short~ note ~on~ bryophytes?\)
-----------------------------------------------
\(\underline{ANSWER:-}\)
Bryophytes are a loose classification of three non-vascular land plant embryophytes: liverworts, hornworts, and mosses. They are typically small and prefer damp surroundings, however, they may thrive in drier ones. There are over 20,000 plant species in the bryophytes.\(\underline{-----------}\)
\(\textnormal{HOPE IT HELPS}\)
\(\textnormal{HAVE A GREAT DAY!!}\)
What is not true about predator-prey arms races?A. Predator and prey population fluctuations are linkedB. The effect intensifies when a variety of predators and prey are involvedC An equilibrium may eventually be reachedD. It's an example of the Red Queen Hypothesis
Answers
The statement that "it's an example of the Red Queen Hypothesis" is not true about predator-prey arms races. The Red Queen Hypothesis refers to the idea that species must constantly evolve and adapt in order to maintain their relative fitness in a constantly changing environment.
While predator-prey arms races do involve coevolutionary adaptations between predator and prey species, they are not necessarily always driven by the Red Queen Hypothesis. The other statements are true: predator and prey population fluctuations are linked, the effect intensifies when a variety of predators and prey are involved, and an equilibrium may eventually be reached.
Predator-prey arms races involve the co-evolution of predators and prey as they adapt to each other to survive. While it is true that predator and prey population fluctuations are linked and that the effect intensifies when a variety of species are involved, the statement "an equilibrium may eventually be reached" is not entirely accurate. In reality, these interactions tend to maintain a dynamic balance rather than a static equilibrium. The Red Queen Hypothesis, which is an example of a predator-prey arms race, states that species must continually adapt and evolve to keep up with their opponents in a constantly changing environment.
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Which is the best date variety must be refrigerated after harvest because of its high sugar content? Tamar Zahidi Thoory Black Sphinx Question 2 2 pts Which of the following statements about dates is FALSE? Commercial dates palms are typically propagated from seed. Dates are members of the Arecaceae or palm family. Dates are dioecious with male and female plants. A mature female date palm can yield upwards of 100 to 200 pounds of fruit each year.
Answers
The date variety that must be refrigerated after harvest due to its high sugar content is the Zahidi date.
Dates are known for their sweet taste, and some varieties have a particularly high sugar content. Among the options provided, the Zahidi date variety is known for its high sugar content and is commonly refrigerated after harvest to maintain its quality.
Tamar dates, also known as Medjool dates, are known for their soft and chewy texture. Thoory dates are a dry variety and are typically consumed in a dried form without the need for refrigeration. Black Sphinx dates, also known as Black Abbada dates, are characterized by their dark color and are often enjoyed fresh.
Therefore, based on the options provided, the Zahidi date variety is the one that must be refrigerated after harvest due to its high sugar content. Refrigeration helps preserve the quality, texture, and taste of the Zahidi dates by slowing down enzymatic activity and inhibiting microbial growth.
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How is water traveling underground to lost Lake?
Answers
Answer: Water becomes the part of the aquifer.
Explanation:
Water from rain, snow fall, river, lakes, ponds, ocean, irrigation field, and from other sources become the part of the ground water or aquifer. The water seep into the soil or rocks and deposited as reservoir of water underground. The underground water when exposed to the surface can become the part of the lost lake or any other water body. Thus the source of lost lake can be determined this way by tracking the distance covered by the ground water.
you do a cross between two bacterial strains with the genotypes strs trp lys his and strr trp- lys- his-. you plate the progeny on minimal media plus streptomycin, lysine and histidine and get colonies. what genes are selected for on the plate?
Answers
When two different bacterial strains are crossed, it leads to the creation of new strains of bacteria. The new strains of bacteria that are created from this cross are known as the progeny.
When two different bacterial strains are crossed, it leads to the creation of new strains of bacteria. The new strains of bacteria that are created from this cross are known as the progeny. In the given scenario, the progeny is plated on minimal media plus streptomycin, lysine and histidine and colonies are formed. This experiment is done to determine the genes that are selected for on the plate. The genotypes of the bacterial strains are strs trp lys his and strr trp- lys- his-. The plus sign represents the presence of the gene while the minus sign represents the absence of the gene. The genes that are selected for on the plate are Str, Lys, and His. This can be explained as follows: The first genotype (strs trp lys his) indicates that the strain is resistant to streptomycin but requires tryptophan, lysine, and histidine to grow. The second genotype (strr trp- lys- his-) indicates that the strain is sensitive to streptomycin and does not require tryptophan, lysine, and histidine to grow. Therefore, on minimal media plus streptomycin, lysine, and histidine, only the strains that have Str, Lys, and His genes will be able to grow, and the sensitive strain will be unable to grow. Therefore, the genes that are selected for on the plate are Str, Lys, and His.
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A deficiency in what trace mineral is associated with loss of taste, poor wound healing, and cessation of spermatogenesis?.
Answers
Zinc deficiency is linked to taste loss, poor wound healing, and the cessation of spermatogenesis.
What are the signs and symptoms of a zinc deficiency?Zinc deficiency occurs when the body does not have enough zinc. During pregnancy, childhood, and adolescence, zinc is essential for the immune system, wound healing, and proper growth and development. Zinc deficiency can cause initial skin changes that resemble eczema.The skin frequently develops cracks and a glazed appearance, particularly around the lips, diaper area, and hands. Lotions, steroid creams, and moisturizers have no effect on the rash.Some people cannot get enough zinc through diet alone. Because protein aids in zinc absorption, vegetarians and vegans, as well as those on long-term restricted diets, may be more vulnerable. Children on restricted diets and infants breastfed exclusively for more than six months are at risk of zinc deficiency.To learn more about zinc deficiency, refer to:
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biological drives are essential because they maintain a steady state of bodily equilibrium called
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Biological drives are essential because they maintain a steady state of bodily equilibrium called homeostasis.
Homeostasis refers to the body's ability to regulate and maintain stable internal conditions, such as temperature, blood pressure, pH levels, and nutrient balance, among others. Biological drives play a crucial role in achieving and sustaining homeostasis.
Biological drives are innate physiological processes that motivate behavior to satisfy basic needs and maintain homeostasis. These drives are often associated with survival and are fundamental for the overall well-being of an organism. Examples of biological drives include thirst, hunger, sleep, and sex drive.
When a biological drive is activated, it creates a state of physiological imbalance or need within the body. This imbalance stimulates specific behaviors or actions aimed at fulfilling that need and restoring homeostasis.
The satisfaction of these biological drives brings the body back to a state of equilibrium and relieves the physiological imbalance. Once the need is fulfilled, the drive diminishes until the next imbalance occurs.
Overall, biological drives are essential because they serve as internal signals that guide behavior and maintain the body's steady state of homeostasis. By responding to these drives, individuals ensure their physiological needs are met, promoting survival, and supporting optimal functioning of the body.
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The blood’s resistance to flow is influenced largely by the __________, which is the percentage of the total blood volume composed of red blood cells.
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The blood's resistance to flow is largely influenced by the hematocrit. Which is the percentage of the total blood volume composed of red blood cells.
About Red Blood Cells
Red blood cells, erythrocytes are the most numerous type of blood cell and function to bind oxygen needed to bind body tissues via blood in vertebrates. There are approximately 5 million red blood cells per mm³. Red blood cells or erythrocytes are the most abundant cells in the blood. This is because these cells account for about 40 to 45 percent of its volume. In simple terms, erythrocytes are shaped like a 'doughnut' but without a hole in the middle.
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The blood’s resistance to flow is influenced largely by the hematocrit, which is the percentage of the total blood volume composed of red blood cells.
Hematocrit is defined as a measure of the proportion of red blood cells in the blood. It is often used as a diagnostic tool to assess an individual's overall health and to identify conditions such as anemia or polycythemia.
Hematocrit is usually expressed as a percentage, with normal levels ranging from 41 to 50% in men and 36 to 48% in women. Hematocrit levels can be measured through a blood test, in which a small sample of blood is taken and the red blood cells are separated from the plasma using a centrifuge. The hematocrit level is then calculated by dividing the volume of red blood cells by the total volume of blood in the sample.
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discuss few important aspects about Decision Support System needed in this 21st century.
Provide and explain an example of Decision Support System.
For example, https://www.microstrategy.com/en
Answers
Decision Support System (DSS) is an interactive computer-based system that helps businesses and organizations make better decisions by providing actionable information, analysis, and insights. This system uses data analysis techniques, data mining, and simulation to support decision-making in complex situations.
There are several aspects of a Decision Support System that are important in the 21st century, some of them include:Data Integration: One of the most important aspects of DSS is its ability to integrate data from multiple sources, which helps to improve the quality of decision-making. This is crucial in the current era, where data is generated from various sources in huge quantities.Analytical Capabilities: DSS is equipped with analytical capabilities that help users to perform complex data analysis, including data mining, regression analysis, and simulation modeling. These analytical capabilities are critical in making sense of the large volumes of data generated by modern businesses.User-Friendly Interface: Another important aspect of DSS is its user-friendly interface that enables users to interact with the system easily and efficiently.
This aspect is important in the 21st century, where users expect to interact with technology in a simple and intuitive way.Collaboration Capabilities: DSS provides a platform for collaboration and knowledge sharing among users, which is crucial in complex decision-making processes.Example of Decision Support System:The MicroStrategy platform is an example of a Decision Support System. It is a comprehensive business intelligence platform that provides organizations with a range of analytical capabilities, including data mining, predictive analytics, and dashboarding. MicroStrategy enables users to integrate data from multiple sources, perform complex data analysis, and share insights with other users. It also provides a user-friendly interface that makes it easy for users to interact with the system.
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What evidence shows that the polar ice caps are melting?
Answers
“Carbon dioxide and other greenhouse emissions have raised temperatures, even higher in the poles.” states World Wildlife Fund.
Living things have found it harder to survive in the cold, because the temperature is getting hotter as humans send out more greenhouse emissions, nearly meeting the record for global warming.
how is a virus tagged for destruction
Answers
Answer:
Virus depends on the host cells so they may affect them and reproduce.
Explanations:
Viruses inserts its genetic inside of the hosts, and take over the host functions. Once a cell is infected it can produce more viral protein and genetic material.
2. Which diagram best illustrates an event in
sexual reproduction that would most directly
lead to the formation of a human embryo?
(1)
(2)
+
) (4)
G
+
Answers
Answer:
4
Explanation:
Because a female sex organ live the ovum shown needs to be in contact with the male sex organ the sperm to fertilize and being in the process of making said human
Diagram 4 best illustrate an event in reproduction that would most directly lead to the formation of a human embryo.
How human embryo formation occurs?During fertilization, the sperm and egg unite in one of the fallopian tube of female reproductive system to form zygote.
Then zygote goes through some stages of embryogenesis in order tp reach implantation step.
Here in the diagram 4 sperm and egg are shown to get unite and formation of zygote can take place which eventually lead to embryo formation.
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8. phages that can either replicate and cause cell lysis or can integrate their dna into the bacterial host dna are called
Answers
Phages that can either replicate and cause cell lysis or can integrate their DNA into the bacterial host DNA are called Temperate phages.
Temperate Phages:
Temperate Phages can either replicate and cause cell lysis or can integrate their DNA into the bacterial host DNA. These phages have the ability to choose between two life cycles - the lytic cycle or the lysogenic cycle. During the lytic cycle, the phage replicates inside the bacterial host cell and ultimately causes the cell to burst open or lyse, releasing new phage particles. In contrast, during the lysogenic cycle, the phage integrates its DNA with the bacterial host DNA, and the phage and bacterial DNA replicate together. This integration is called integration of DNA with bacterial DNA.
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What are the ecological levels from smallest to largest
Answers
Answer:
I think that it would be; Population, Community, Ecosystem, Biomes, Biosphere.
Explanation:
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which would be a property of lipids found in the cell membrane?a.they would be saponifiable in base and hydrolyzed in acid.b.they would be composed of five-carbon units.c.they would have polar heads and non-polar tails.d.they would be joined to each other through covalent bonds.
Answers
Property of lipids found in the cell membrane c.) they would have polar heads and non-polar tails.
The heads forming the outer and inner linings are hydrophilic that means water loving. And the tails that face the interior of the cell membrane are hydrophobic that means water fearing. The most abundant membrane lipids are the phospholipids having a polar head group and two hydrophobic hydrocarbon tails.
Phospholipids, cholesterol, and glycolipids are three types of membrane lipid molecules. The lipid compositions on the inner and outer layers are different depending on the different functions of the two faces of a cell membrane.
Lipids works as an essential structural component of membranes, as a signaling molecules, chemical identifiers of specific membranes and as energy storage molecules.
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Carlos is the first member of his family to be born in the United States. Carlos's family and surrounding community have given him a deep grounding in traditional Mexican culture. Carlos's intense academic experiences at a private high school and top-tier U.S. business school have given Carlos a keen understanding of mainstream American society. Carlos is successful and at ease in both of these worlds. This form of acculturation is known as ______________.
Answers
Carlos is a first-generation immigrant from Mexico. His family and community taught him traditional Mexican culture while his high school and top-tier business school taught him the mainstream American society. Carlos is a perfect example of biculturalism. Hence, this form of acculturation is known as biculturalism.
Biculturalism refers to the state of being immersed in two cultures at the same time. Bicultural individuals or groups have elements of two different cultures and often have a foot in each one. Biculturalism includes keeping cultural ties with one's nation of origin while still embracing American culture in order to become successful in a foreign country.
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which statement about ape evolution is not currently supported? apes and monkeys split in the early miocene. the teeth of early apes are like those of living apes. apes originated in africa but later migrated to europe and asia. miocene apes and living great apes have a continuous fossil record in africa.
Answers
The claim that extant great apes and Miocene apes have an uninterrupted fossil record in Africa is not currently supported.
What started the evolution of primates?The early primates most likely descended from a small, nocturnal, insectivorous mammal. Tree shrews and colugos, sometimes known as flying lemurs, are the two species that are most similar to primates. A living illustration of early primates or primate ancestors' appearance is the tree shrew.
Why are we not still descended from apes?Like chimpanzees, we did not develop from a contemporary living primate. Our common ancestor with apes, who lived and perished in the distant past, is where we evolved and descended from. This indicates that we share ancestry with other apes.
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Answer:
A
tyler has a points card for a movie theater.
he receives 75 rewards points just for signing up.
• he earns 10.5 points for each visit to the movie theater.
he needs 180 points for a free movie ticket.
.
a
how many visits must tyler make to earn a free movie ticket?
Explanation:
Can some help me? Please, due in 10 mins.
Answers
Answer:
C
Explanation:
If i were to explain i would be here all day and i have to go to town, contact me for an explanation.
name a non-metal which can change shape without breaking
Answers
Answer:
THE ANSWER IS PLASTIC
STATION #2
Where is DNA located within the cell?
Your answer here
Nucleus
Mitochondria
cytoplam
Ribosoma
Golgi apparatus
Answers
Answer:
nucleas
Explanation:
i looked it up and we had a unit on this in school ,not that I actually remembered anything they taught me :P
Besides the dna in the nuculous humans and animals also have dna in the cell structures mitochondria
Find the circumference of the circle. Round to the nearest tenth. the circle is 26cm
Answers
Answer:
81.64
Explanation:
pie x diameter = circumference
Answer:
81.64
Explanation:
which of the following is not a level of organization?
1)individual
2)population
3)community
4)ecosystem
5)ecology
Answers
Ecology is the study of relationships in their environment, so it cannot be a level of organization.
Give reason why water in the xylem and translocation of food is related with each other.
Answers
Answer:
Transportation of food and water takes place through xylem and phloem in the plants. The water from the roots is transported through xylem. Phloem on other hand transports the food prepared in the leaves to other parts of the plants.
Explain how concern for profits shapes business decisions.
Answers
Answer:
Businesses/companies will often compromise the quality of a product or service in order to make a profit. If a company uses cheap supplies to make a product, they will make more profit from it.
Here is an example:
Imagine you are making soap-making company. You use all organic ingredients which are very expensive. Let's say it takes $6 for you to make one bar of soap. If you sell your bars for $10, then you will make a $4 profit from each bar sold.
Now let's say another company starts making soap. It looks and feels almost exactly like yours. HOWEVER, this company uses artificial ingredients. It takes them only $3 to make a bar of soap, and they sell their soap on "sale" for $9. Not only will they likely sell more soap than you because their soap is cheaper, but they will make a $6 profit from each bar sold-- two more dollars per bar than you.
The same can be true the other way around of course. If a business realizes that nobody is buying their product because it is so poorly made, then they will improve the quality of their product in order to increase their sales.
Which of these elements is found in both carbohydrates and water?
1. carbon
2. oxygen
3. nitrogen
4. helium
Answers
The answer is option 2 oxygen
Rock sole in the Bering Sea 1/2: "Recruitment," the addition of new members to a fish population, is an important measure of the health of ocean ecosystems. Here are data on the recruitment of rock sole in the Bering Sea from 1973 to 2000: Year Recruitment (millions)
Year Recruitment (millions)
1973 173
1974 234
1975 616
1976. 344
1977 515
1978 576
1979 727
1980 1411
1981 1431
1982 1250
1983 2246
1984 1793
1985 1793
1986 2809
1987 4700
1988 1702
1989 1119
1990 2407
1991 1049
1992 505
1993 998
1994 505
1995 304
1996 425
1997 214
1998 385
1999 445
2000 676
Make a stemplot to display the distribution of yearly rock sole recruitment. Round to the nearest hundred (for example, 173 to 2 hundred, and 1702 to 17 hundred) and split the stems.
Answers
We used the stem plot because it is an effective way to display the distribution of yearly rock sole recruitment, as it groups data into stem (left) and leaf (right) digits.
Recruitment is one of the critical measures of ocean ecosystems' health. The recruitment of rock sole in the Bering Sea from 1973 to 2000 is shown below. 1973 - 173 1974 - 234 1975 - 616 1976 - 344 1977 - 515 1978 - 576 1979 - 727 1980 - 1411 1981 - 1431 1982 - 1250 1983 - 2246 1984 - 1793 1985 - 1793 1986 - 2809 1987 - 4700 1988 - 1702 1989 - 1119 1990 - 2407 1991 - 1049 1992 - 505 1993 - 998 1994 - 505 1995 - 304 1996 - 425 1997 - 214 1998 - 385 1999 - 445 2000 - 676
We have to create a stem plot for rock sole in the Bering Sea for the given data, i.e., Recruitment (millions) from 1973 to 2000. We should round the data to the nearest hundred, as instructed above to make the stemplot. The stemplot for the given data is shown below. 0| 3 4 5 5 6 7 7 8 9 1| 0 0 1 1 2 4 7 7 8 9 2| 2 3 4 5
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How many sperm cells are formed from an original cell in a Drosophila fruit fly at the conclusion of meiosis?
O A two haploid sperm cells
O B. two diploid sperm cells
O C. four haploid sperm cellab
O D. four diploid sperm cells
Answers
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