Hemoglobin is a protein found in the red blood cells of vertebrates and the plasma of many invertebrates. The function of hemoglobin is to carry oxygen throughout the body and to bring carbon dioxide back to be expelled from the organism. If the amino acid sequence of the protein is altered, the mutated protein is not as efficient at carrying oxygen as normal hemoglobin. Option three "Structural changes of hemoglobin affect its ability to carry oxygen, indicating that the shape of a protein is important to its function" the above argument is supported by this information.
Changes in the structure of hemoglobin protein can impact its oxygen-carrying capacity since the oxygen binding sites have been altered or removed due to the change in the amino acid sequence the protein shows less efficiency.
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Which plant parts are in leaves? (Select all that apply.)
1. endosperm
2. xylem
3. root hairs
4. phloem
Answer:
4. Phloem
Explanation:
Phloem, also called bast, tissues in plants that conduct foods made in the leaves to all other parts of the plant. Phloem is composed of various specialized cells called sieve tubes, companion cells, phloem fibers, and phloem parenchyma cells. - Britannica
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For what can we use the doppler effect to deduce in astronomy
A. the shape of orbital path of an object
B. whether the object is traveling toward or away from us
C. the Chemical composition of the objects
D. the type of spectrum the object emits
Answer:
B
Explanation:
Whether the object is travelling toward or away from us for PLATO.
Answer:
b whether the object is traveling toward or away from us
Explanation:
i just got the answer right on the test
1. What drove Paleolithic artists to make the sculptures?
2. What is the Egyptian canon of proportions?
3. What did you learn from the primary sources about the Spear Bearer?
4. What is Polykleitos's canon of proportions?
1.The motivations and drivers behind Paleolithic artists creating sculptures are not explicitly documented, as there are no written records from that time.
2.The Egyptian canon of proportions refers to the artistic guidelines followed by ancient Egyptian artists to depict human figures in a consistent and standardized manner.
3.The term "Spear Bearer" typically refers to the sculpture known as the "Doryphoros" or "Spear Bearer" by the ancient Greek sculptor Polykleitos.
4.Polykleitos, an ancient Greek sculptor from the 5th century BCE, developed a canon of proportions known as the "Doryphoros Canon" or "Canon of Polykleitos."
1.However, it is believed that the artists were inspired by their surroundings, natural forms, and possibly spiritual or religious beliefs. Some theories suggest that the sculptures had ritualistic or symbolic purposes, representing fertility, hunting, or ancestral figures. Others propose that they were created for personal expression or as a means of communication within the community.
2.It involved specific ratios and proportions that governed the idealized representations of the human body in Egyptian art. The canon typically depicted figures with the head, torso, and legs in a frontal view, while the arms and feet were shown in a more stylized, composite view. The proportions emphasized symmetry, rigid postures, and hierarchical scaling, reflecting the social and religious values of the Egyptian civilization.
3. This sculpture is believed to have been created in the 5th century BCE and is known primarily through Roman copies. It represented a male athlete holding a spear in a contrapposto stance, with balanced and harmonious proportions. The primary sources available regarding the Spear Bearer would include writings from ancient historians, descriptions in art catalogs, and any other documents that discuss the sculpture.
4.This canon aimed to establish an idealized representation of the male figure. Polykleitos believed that harmony and beauty in sculpture could be achieved through mathematical ratios and proportions. His canon emphasized the idea of symmetria, or balance, in the human body. The proportions were based on the concept of the "perfect" or "ideal" male figure, with mathematical ratios determining the relationships between various body parts. The canon aimed to achieve a sense of naturalistic realism while still adhering to the idealized proportions defined by Polykleitos.
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HURRY IM TIMED!!!
The surface area exposed the
a. less, faster
b. more, slower
the weathering occurs.
C. less, no change in rate
d. more, faster
Please select the best answer from the choices provided
Answer:
D. more, faster
Explanation:
The more surface area exposed the faster the weathering occurs.
what abiotic and biotic factors describe a biome
Biome is described as a large community of flora and fauna occupying major habitat . That consists of abiotic and biotic factors.
Biotic factors are living things within an ecosystem mainly plants animal and microorganisms . A biotic factor comprises of living organism that shapes its environment. In a freshwater ecosystem, examples might include aquatic plants, fish, amphibians, and algae. While Abiotic factors are non living components that mainly consists of water soil and atmosphere .Abiotic factors that help characterize a biome include climate, temperature, humidity, soil type and amount of sunlight and the quantity of water that is available in the ecosystem .
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In a process called transpiration, plants get rid of excess water through pores in the leaves called stomata. This excess water is then released into the atmosphere as part of the water cycle. Which of the following terms best describes how the released water enters the atmosphere?
Group of answer choices
precipitation
condensation
capillary action
evaporation
Answer:
Evaporation
Explanation:
Estimate the probability of this disorder occurring in the offspring of a marriage between first cousins. Enter your answer as either a fraction or a decimal. Part B Compare this probability to the population at large. Inbreeding increases the probability of this disorder. Inbreeding decreases the probability of this disorder. Inbreeding does not change the probability of this disorder.
Part A -The likelihood of having Autosomal Recessive Disorder is 1 in 10,000 people = 0.0001.
Part B - Inbreeding increases the probability of disorder.
Autosomal Recessive Disorder inheritance is the way genetic traits or conditions are passed from parent to child. Genetic conditions can occur when a child inherits a mutated (altered) copy of the gene from each parent. Parents of children with an autosomal recessive disorder usually do not have the disorder. Consanguineous offspring may be at increased risk for recessive diseases due to the expression of autosomal recessive gene mutations inherited from a common ancestor.
The following Genotypes can be found in the first two cousins:
A stands for dominant allele.
a denotes a recessive allele.
1) AA X AA
Normal for all offspring.
There are no problems.
2) AA X Aa
Genotype of offspring = AA and Aa.
Because the phenotype is normal, the condition does not exist.
3) Aa X Aa
Genotype of offspring = AA, Aa, and aa.
The condition affects one-quarter of all offspring.
1/4 are typical,
Half of them are carriers.
4) aa X aa
All offspring are afflicted by the condition.
If we assume the cousins to be carriers[because their genotype is not indicated, we will consider them to be carriers], affected kids are generated.
Carriers' probability = 0.02
By 1/2, both cousins are carriers.
And the likelihood that the child may be impacted - 1/4 or 25%
Total Probability is equal to 1/2 * 0.02 * 1/2 * 0.02
= 0.0001
As a result, the pair might have afflicted offspring by 0.0001.
Possessing the normal alleles has no effect on 25% of people; carrying one impacted and one unaffected allele has no effect on 50% of people. Carrying the afflicted Alleles affects 25% of the population.
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select all that apply. which of the following are part of the acsm guidelines for testing individuals for muscular strength and endurance?
The answer can be found in options a, b, and d. You should just work out twice a week for 15 to 30 minutes. Each intense workout should focus on several different muscle groups. When you can definitely finish three sets of 10 reps, up the weight. To increase flexibility, some guidelines for frequency and intensity are provided.
The maximum force a muscle can exert in a single action against stability is referred to as muscular strength. Strong and resilient muscles are important for a variety of reasons. To accomplish work like opening doors, lifting boxes, or cutting down trees without becoming fatigued, build up your strength. reduce the likelihood of harm.
As a result, we can say that options a, b, and d provide the solution. You should just work out twice a week for 15 to 30 minutes. Each exercise session should focus on several different muscle groups. When you can easily finish three sets of 10 reps, up the weight. To increase flexibility, some suggestions for frequency and intensity are provided.
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Complete Question:
Select all that apply.
Which of the following guidelines are given in regard to intensity and frequency, to improve muscular strength?
A. Workout sessions should be limited to twice a week for 15-30 minutes.
B. During each workout session, several different muscle groups should be worked.
C. Exercises for each muscle group should include four to five sets of 10 to 15 repetitions each.
D. Increase the weight only when you are able to complete three sets of 10 repetitions with ease.
in order to understand human impact on the environment, scientists need to monitor the levels of many substances. which substances should be monitored and controlled to help minimize the impact of human activity on air quality
A. nitrogen
B. water vapor
C. ozone
D. oxygen
This is the correct answer
Answer: Ozone
Explanation: The ozone layer allows protection and keeps the temperature of the earth from rising.
4
In this paragraph, does the word "once" help show a cause-and-effect
relationship? Support your answer with evidence from the text.
In the beetles described in the animation, there were two alleles for color, brown and green. Suppose that you discover a very small population of these beetles, consisting of the individuals shown below. How can you calculate the frequency of each allele in this population?
Drag the terms or numbers on the left to the appropriate blanks on the right to complete the sentences. Not all terms will be used.
Terms or numbers:
0.4 ; 0.6 ; 8 ; 20 ; Brown alleles
Sentences:
1. To calculate the frequency of the brown allele, count the number of ________________ and divide by the total number of alleles in this population.
2. In this beetle population, the number of brown alleles is ___.
3. In this beetle population, the total number of alleles is ___.
4. The frequency of the brown allele in this beetle population is _____.
5. The frequency of the green allele in this beetle population is _____.
To calculate the frequency of the brown allele, count number of brown alleles and divide by total number of alleles in this population.
In this beetle population, the number of the brown alleles is 8.
In this beetle population, the total number of the alleles is 20.
Frequency of brown allele in this beetle population is 0.4.
Frequency of green allele in this beetle population is 0.6.
Allele frequency refers to how not unusual an allele is in a populace. It is decided by counting how typically the allele seems inside the population and then dividing by the full variety of copies of the gene.
Gene frequency can be defined as the fraction or percentage of a population that contains an allele at a selected locus (Gillespie 2004).
Relative genotype frequency and relative allele frequency are the most essential measures of genetic variation. Relative genotype frequency is the proportion of individuals in a populace that has a specific genotype.
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Evolution: natural and artificial selection gizmos answer key?
Answer:
Here are some answers I found. It isn't all of them, but it might help. You get some of the answers, which is better than nothing. You have to pay if you want all the answers though :(
Explanation:
https://www.coursehero.com/file/p5pk211a/Summarize-How-are-the-processes-of-natural-selection-and-artificial-selection/
https://www.coursehero.com/file/28264145/EvolutionNaturalArtificialSEdocx/
Darwin had seen these birds on a visit in the 1830s to the Galápagos Islands, a collection of islands in the Pacific Ocean to the west of South America.
What is Artificial selection?Artificial selection is the process of identifying desirable qualities in plants and animals and then taking action to strengthen and pass those traits on to succeeding generations.
Artificial selection operates in a similar manner to natural selection, with the exception that in natural selection, these judgments are made by nature without human intervention.
The physical characteristics and behaviors of many kinds of birds known as finches were highlighted by British naturalist and biologist Charles Darwin in his 1859 book On the Origin of kinds, which outlined the evidence for his hypothesis of evolution by natural selection.
Therefore, Darwin had seen these birds on a visit in the 1830s to the Galápagos Islands, a collection of islands in the Pacific Ocean to the west of South America.
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7. For the following scenario provide a hypothesis, the dependent variable, independent variable, standardized variables, and control group.
Scenario: You want to determine whether plants communicate with their neighbors in response to stress, so you design an experiment. You have two groups of plants, one that will be exposed to a stressor and another that will not. You apply the stress 3 times a day for 10 days. At day 1 you measure the amount of stress hormone in the plants and then again you measure the amount of stress hormone on day 10.
Here, the hypothesis is "plants communicate with their neighbors in response to stress", dependent variable is the amount of the stress hormone in the plants, and the independent variable is the exposure to stress (applied 3 times a day for 10 days), standardized variables are plants used, duration of the stressor, amount of stress hormone. The control group is the plant that is not exposed to stressor.
What is the significance of the control group?Here, the control group is the group of plants that are not exposed to stress, and the control groups plants are experimented or tested with the other plants to get the result of the stress hormone on the plants.
Hence, here, the hypothesis is "plants communicate with their neighbors in response to stress", dependent variable is the amount of the stress hormone in the plants, and the independent variable is the exposure to stress (applied 3 times a day for 10 days), standardized variables are plants used, duration of the stressor, amount of stress hormone. The control group is the plant that is not exposed to stressor.
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Water ____.
Has a pH value
Expands when it freezes
Answer:
7 neutral
Explanation:
it is because water is something that has no taste and it's expands because of the pressure that it's feeling
Which step is part of a scientific investigation but is not part of the
ngineering design process?
A. Asking questions
B. Performing tests
C. Forming a hypothesis
D. Solving a problem
Forming a hypothesis of a scientific investigation is not part of the engineering design process.
Scientists ask questions and design an experiment or series of experiments to answer the questions. Engineers use the design process to develop solutions to problems. Engineers identify specific needs. This means identifying who needs what and creating solutions that meet those needs.
The number of steps and order of use may vary. However, in the design process, he has three main stages problem definition idea generation, and design solution optimization. To better understand the construction process. Scientists use the scientific method to make testable explanations and predictions about the world.
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Look at the table to the right and use it to answer the following question.
What type of graph or chart would best represent the data presented in the table?
a bar graph
a line graph
a pie chart
Answer:
b. Line Graph
Explanation:
on god
A group of scientists must complete a study, but they have limited funding from a government organization. What
practical ways could these scientists work around this limitation? Check all that apply.
Make up the results of their study based on limited evidence.
Limit the scope of the study
Complete smaller studies over a longer period.
Give up on conducting the experiment.
Create models for large or complex components.
Answer:
Complete smaller studies over a longer period.
Explanation:
Insread of giving up, it's best to cut the experiment and do some study at a time. You can save Money
__ ions leave the cytoplasm rapidly during the repolarization phase. both A and C none of the above Calcium Sodium Potassium
Answer:
Potassium ions
Explanation:
During repolarization, more potassium ions leaves the cell making the cell less positive and more negative bringing about repolarization.
The event of repolarization comes after the depolarization of the cell wherein more sodium ions which are positively charged flows into the cell letting the cell become less negative leading to depolarization of the cell.
In the levels of organization for biological systems, you identify
populations, tissues, organs, and organisms. Which of these four is the
smallest level of organization?
O Population
O Tissue
O Organ
O Organism
Answer:
I believe the ans is tissue.
Answer:
option b tissues is the right one
PLEASE HELPPP!!!!!!
1) Use the following situation and tables to choose the correct answer.
Randomly sampled students from two high schools were asked what color the district should paint the new stadium. The results are presented in the following tables:
Stadium Color - North Valley High
Color: Survey Results:
silver 30
blue 54
teal 36
Stadium Color - South Hills High
Color: Survey Results:
silver 78
blue 24
teal 18
Make an inference comparing which color each of the two high school populations should choose for the stadium, based upon a qualitative comparison of the sampled data.
A.) North Valley High should choose silver to give the minority of the students who selected silver a win in the selection process. South Hills High should choose teal because a minority of their sampled students selected the color teal than other colors.
B.) North Valley High should choose blue because more of the sampled students selected the color blue compared to the other colors in the survey. South Hills High should choose silver because more of the sampled students selected the color silver than other colors.
C.) North Valley High should choose teal because that color was selected between the other two colors and would appeal to a broader base of students. South Hills High should choose blue in order to appeal to a broader base if its students.
North Valley High should select blue because more of the sampled students picked the color blue compared to the other colors in the survey. South Hills High should select silver because more of the sampled students picked the color silver than other colors.
This is the correct inference based on the given data. The survey results show that blue was the most popular color among the North Valley High students, and silver was the most popular color among the South Hills High students. Therefore, it would make sense for each high school to choose the color that was most popular among their respective student populations.
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What are the Mendelian inheritance principles?
The Mendelian inheritance principles are called the Law of Segregation, the Law of genetic Dominance and the Law of Independent Assortment.
What are the Mendelian genetic inheritance principles?The Mendelian genetic inheritance principles are a series of laws that dominate genetic patterns of inheritance which were discovered by Gregor Mendel who investigated inheritance in pea plants.
The Law of Segregation indicates that alleles separate in different gametes when they are not linked, and the law of dominance indicates that certain alleles mask the expression of recessive alleles in heterozygous individuals. Moreover, the Law of Independent Assortment is based on genes that are located on different chromosomes.
Therefore, with this data, we can see that the Mendelian genetic inheritance principles are fundamental to understanding inheritance patterns and they were discovered by Gregor Mendel working with different traits in the pea plant.
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characteristics of contaminated water
Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.
Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.
Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.
Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.
Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.
Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.
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The equation for the speed of an object in circular orbit is ":=
a.
the mass of the sun
b. the mass of Earth
Please select the best answer from the choices provided
OA
OB
OC
OD
G-
. What does m represent in this equation?
C.
the mass of the central object
d. the mass of the orbiting object
The correct answer is: C. the mass of the central object.
In the equation for the speed of an object in a circular orbit, the variable "m" represents the mass of the central object. The equation itself is not provided in the question, but in the context of circular motion, the speed of an object in a circular orbit is influenced by the mass of the central object around which it is orbiting.
This equation is derived from the gravitational force between the two objects involved in the orbit. The mass of the central object, such as the Sun in the case of planetary orbits, affects the gravitational pull on the orbiting object. The greater the mass of the central object, the stronger the gravitational force, and consequently, the faster the object needs to travel to maintain a stable orbit.
The mass of the orbiting object, represented by another variable, is also a factor in the equation, but it does not appear to be part of the options provided. Therefore, the most appropriate answer is that "m" represents the mass of the central object.
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The m in the equation would represent the mass of the central object.
What is the equation?Centripetal force and gravitational force theories can be used to calculate the speed of an object in a circular orbit. The following formula can be used to determine an object's speed in the case of a circular orbit around a central body, such as a planet or star:
v = √(G * M / r)
v = speed of the object in the circular orbit
G = gravitational constant
m = mass of the central body
r = radius or distance between the center of the central body and the object
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Missing parts;
The equation for the speed of an object in circular orbit is vt = root (G(m/r)). What does m represent in this equation?
2. What structure caused rotifers to be called wheel animals or wheel bearers?
1 the foot
2 the corona
3 the brain
4 the stomach
The structure that caused rotifers to be called wheel animals or wheel bearers is the corona.
Rotifers are also known as wheel animals or wheel bearers because of the corona structure around their mouth region.
Some rotifers are sessile and live inside tubes or gelatinous holdfasts that are attached to a substrate. Other rotifers migrate around a substrate through inch worming.
This is because when corona is seen in a sequential coordinated movement, it resembles the structure of a wheel, although it does not rotate in reality.
Therefore, we conclude that rotifers are called wheel animals or wheel bearers due to the presence of the corona structure.
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14. Which words from the passage show the author's bias toward monarch butterflies? A "Eventually, monarchs reach homes as far north as Canada." B "Most monarch butterflies never live more than two months." c "These beautiful creatures are amazing to watch..." D "They beat their wings slowly and glide so they do not tire too easily."
Answer: C: "These beautiful creatures are amazing to watch."
Explanation: Bias is where an author adds their personal opinion on a topic such as this one on monarch butterflies. Sometimes, authors use bias and it gets away from the facts and the credibility that the topic should bring. In option C, the words "beautiful" and "amazing to watch" steers the reader away from the actual topic with their personal opinions. The other options from the passage include facts about the monarch butterflies and resisting the urge to add comments about how beautiful or interesting they are.
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HELP ASAP RIGHT NOW !!
What is wind energy.
What are some disadvantages of wind energy
A wind energy that harnesses the strength of the wind to produce electricity, which is how wind energy, also known as wind power, is produced.
Why use wind energy?A clean and renewable energy source is wind energy.In addition to being a plentiful and limitless resource, wind also generates power without consuming any fuel or damaging the environment. The main renewable energy source in the United States is still wind, which aids in reducing our dependency on fossil fuels.The turbine's blades, which are affixed to a rotor, are blown by the wind.The advantages of wind energy
There is wind practically everywhere.Wherever they may be, distant locations benefit greatly from wind power.Long-term and medium-term wind patterns are reliable.Excellent efficiency of conversion.Land is hardly used for wind energy.The effects on the environment are negligible.a really cost-effective green energy source.To learn more about wind energy refer to:
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How are the studies performed on rainbow trout ( Oncorhynchus mykiss) and the moss Pleurozium schreberi and the desert shrub Atriplex lentiformis similar? Both studies are coupled to enzymatic activity. Both studies support the concept that species operate within a narrow optimum temperature range. Both studies support the concept that species operate within a narrow optimum temperature range and are coupled to enzymatic activity. Both studies examine the effects of microclimates and studies support the concept that species operate within a narrow optimum temperature range. Both studies examine the effects of microclimates.
Answer:
Both studies support the concept that species operate within a narrow optimum temperature range and are coupled to enzymatic activity.
Explanation:
The studies shown in the question above started from the same concept to establish the scientific experiment and had the same objective related to the investigation as temperature changes in the environment where these organisms live influences the enzymatic activity and, therefore, the functioning of their organism, being able to including modifying the environment around them. In summary, we can say that the studies sought to support the concept that species operate within a narrow range of optimal temperature and are coupled with enzymatic activity.
A crane has a sharp and pointed beak while the duck has a flat beak.Explain why
Answer:
The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.
On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.
The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.
For each offspring genotype in the Punnett square you just completed, determine the phenotype. In other words, what is the predicted fur color and eye color of the offspring? Using your Punnett square from the last step, fill in the predicted fraction for each phenotype in the data table below.
Answer:
wouldnt we need a picture or a better definition for this?
Answer:
Predicted Fraction:
Black Fur and Black Eyes: 16/16
Black Fur and Red Eyes: 0/16
White Fur Black Eyes: 0/16
White Fur Red Eyes: 0/16
Predicted Percentage:
100%
0%
0%
0%
Explanation:
I just did this exercise
Cube with 4 cm it’s mass is 54 g
Answer:
WHat do you need to know like is there a picture or something to go with it
Explanation: