A 10.0 cm3 sample of copper has a mass of 89.6 g. What is the density of copper?
Answers
Answer:
\(\boxed {\boxed {\sf d=8.96 \ g/cm^3}}\)
Explanation:
Density can be found by dividing the mass by the volume.
\(d=\frac{m}{v}\)
The mass of the copper is 89.6 grams.
The volume is 10 cubic centimeters.
\(m=89.6 \ g\\v= 10 \ cm^3\)
Substitute the values into the formula.
\(d=\frac{89.6 \ g }{10 \ cm^3}\)
Divide.
\(d=8.96 \ g/cm^3\)
The density of copper is 8.96 grams per cubic centimeter.
Related Questions
What feature of cells is best demonstrated in the image? Α. Cells are the basic units of structure and make up tissues. B. Cells are formed from other cells within the same tissue. c. All organisms have cells with different shapes and functions. D. All organisms are made up of a large number of cells. O E a *
Answers
Answer:
c . All organisms have cells with different shapes and functions.
30 points!! imagine you are investigating how camouflage helps an animal to survive. Write out the following components of the experiment.
a) Purpose:
b) Hypothesis:
c) Prediction
d) Describe the basic procedure you would use:
e) How will you collect your data?f) What results would you expect to see from this experiment?
Answers
The number of uncamouflaged animals will be far less than that of the camouflaged animals at the end of the experiment.
What is an experiment?An experiment is a detailed study that tends to identify cause and effect relationship.
The hypothesis in this experiment is that camouflage helps animals to survive in their habitat. The predication is that animals that are camouflaged are able to escape predation owing to the camouflage.
The best test procedure is to observe animals that are camouflaged and those that are not camouflaged in the wild for a period of about three months. Observe whether the number of uncamouflaged animals decreased more than that of the camouflaged animals after three months.
At the end of the experiment, it is expected that the number of uncamouflaged animals will decrease far more than the number of camouflaged animals.
The data will be collected using an unmaned drone over the area of study.
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Summarize the relationship between proteins and genes.
Answers
Which of the following statements is true?
Answers
RNA is single stranded
This is the answer because DNA is double stranded
DNA does not contain uracil
RNA does not contain deoxyribose sugar
hope this helps!!
Plz if I am right put a brainliest
Answer:
The First one, second and forth are false
and the 3 one is true
Explanation:
The DNA is doble stranded in a double helix structure. There are 5 nucleobases (adenine (A), cytosine (C), guanine (G), thymine (T), and uracil(U)), only the first 4 are present in the DNA whilist the U substitutes the T in RNA.
The DNA has deoxyribose sugar while RNA has ribose sugar, that's what gives the doble stranded and single stranded form respectively.
when lumps of soil for clay, loam and sand are rolled in hands, the ease with which they crumble is always in the reducing order as.
A.clay,sand,loam
B.sand,clay,loam
C.sand,loam,clay
D.clay,loam,sand
Answers
Answer:
The correct answer is:
sand, loam, clay (C.)
Explanation:
Arranging the ease of crumbling in reducing other means that the different types of soils are arranged in the order where the soil type most likely to crumble when rolled is written first, and the soil type least likely to crumble is written last. The soil most likely to crumble (scatter) when rolled is the sandy soil, and the least likely to crumble is the clay soil.
you wish to study the role of residue d125 in your protein. your hypothesis is that this residue is important for a possible binding interactio. what is the best mutation to test binding without disrupting protein structure
Answers
The best mutation to test binding without disrupting the structure of the D125 protein is D125N.
It is analogous that the D125 protein is a protein. Aspartic acid (Asp) is an acidic amino acid.
D = Asp
To replace the Asp protein in a given protein without disrupting the protein structure, we must use similar amino acids. From the choices given in the question namely:
A. D125W
B. D125C
C. D125K
D. D125N
E. D125P
D125W = represented by Trp protein. This is a large amino acid.D125C = represented by Cys protein. It is a sulfur-containing polar amino acid.D125K = represented by the protein Lis. It is a positively charged amino acid.D125P = represented by the protein Proline. These are amino acids that have two side groups attached.Among the options given, D125N represented by Asn protein is similar to Asp in size.
So, the right answer is D125N.
The answer is multiple choice:
A. D125W
B. D125C
C. D125K
D. D125N
E. D125P
The true choice is D.
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The nose has mucus, a sticky substance. When outside air passes through the nose, the mucus
. Bronchitis, an inflammation of the bronchioles, is a condition in which the bronchioles are filled with mucus. When mucus accumulates,
.
Answers
The nose has mucus, a sticky substance. When outside air passes through the nose, the mucus filters the air. Bronchitis, an inflammation of the bronchioles, is a condition in which the bronchioles are filled with mucus. When mucus accumulates less air reaches to the lungs.
What is bronchitis?Bronchitis is a disease in which there is an inflammation in the lining of the bronchioles, this causes them to have a cough and this cough has mucus. It is a respiratory infection that spreads from the nose and trachea to the lungs. It can be contracted by a bacterial infection.
The symptomatology is: cough with mucus, inflammation of the bronchi, respiratory distress, general malaise, obstruction of the alveoli (with mucus), fatigue, among others.
Therefore, we can confirm that the nose has mucus, a sticky substance. When outside air passes through the nose, the mucus filters the air. Bronchitis, an inflammation of the bronchioles, is a condition in which the bronchioles are filled with mucus. When mucus accumulates less air reaches to the lungs.
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In certain lizards, the ability to lose the tail if attacked by a predator serves a protective function. These types of physical characteristics that help organisms to survive are best known as
Answers
The ability of certain lizards to lose their tail if attacked by a predator is an example of a protective function exhibited by physical characteristics, which are commonly referred to as adaptations.
Physical characteristics that aid organisms in their survival are called adaptations. These adaptations can be structural, physiological, or behavioral in nature. In the case of certain lizards, their ability to shed their tail when attacked by a predator is a defensive adaptation that helps them escape from potential harm.
1. Adaptations: Adaptations are traits or features that have evolved in organisms to enhance their chances of survival and reproduction. These can include anatomical structures, physiological processes, or behavioral patterns.
2. Defensive Adaptations: Defensive adaptations are specifically geared towards protecting an organism from harm. In the case of lizards, the ability to shed their tail, a behavior known as autotomy, is a defensive adaptation.
3. Autotomy: Autotomy is the self-amputation or shedding of a body part by an organism. Lizards, such as certain species of geckos or skinks, have developed the ability to voluntarily shed their tail when under attack. The detached tail continues to move, distracting the predator and allowing the lizard to escape.
4. Protective Function: The ability to lose the tail serves a protective function by allowing the lizard to survive encounters with predators. By sacrificing their tail, lizards can increase their chances of survival by diverting the predator's attention and facilitating their escape.
In summary, the physical characteristic exhibited by certain lizards, where they can lose their tail if attacked by a predator, is an adaptation that serves a protective function. This ability, known as autotomy, enhances their chances of survival by enabling them to escape from potential predators.
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The Scientific Method: Steps, Terms & Examples
After watching the video, take the quiz until you score 100%.
Afterward, write a summary and include the three points below.
• Explain each element of the scientific method
Identify the scientific method in real world situations
Describe how peer review and competition contribute to scientific communities
Answers
APickkles
Explanation:
m bjwnd
Layers of closely packed cells that are found covering or lining body surfaces, as in the ____________ of the skin, are called ____________ tissue.
Answers
Layers of closely packed cells that are found covering or lining body surfaces, as in the __Epidermis_ of the skin, are called _Epithelium__ tissue.
What is the epithelium?
Epitheliums are the cell layers that cover the body, different organs, bones, and other structures.
Epitheliums have their own shape, characteristics, and internal composition that make them unique and allow them to accomplish their functions. Their morphology correlates with their function.
There are two main types of epitheliums according to the number of cell layers,
• Simple epithelium
• Stratified epithelium
⇒ Simple epitheliums intervene in secretion or absorption processes.
Cells' height frequently reflects their secretor or absorptive activity degree.
Epitheliums that transport substances are characterized by presenting cubic or columnar cells.
⇒ The stratified epithelium is composed of several layers. The shape and size of the cells vary from one layer to the other.
Its general function is to provide a protective barrier in areas that are more exposed, and a certain degree of waterproofing.
Stratification correlates with transepithelial impermeability and friction exposure.
It protects against humidity loss and mechanical erosion.
The skin epidermis is a common example of stratified epithelium. It is composed of five cell layers, which have different functions:
Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum.
Epitheliums also share many characteristics.
• They form cohesive layers, with cells very close to each other
• Scarse extracellular matrix
• Many union complexes join the cells
Cohesion between epithelial cells is possible by special adhesions that serve as anchoring of each cell's cytoskeleton and the extracellular matrix.
1) Epidermis
2) Epithelium
Layers of closely packed cells that are found covering or lining body surfaces, as in the __Epidermis_ of the skin, are called _Epithelium__ tissue.
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Describe the relationship between temperature, rainfall, and the type of forest
Answers
Answer: The more rainfall, the bigger the tree, so that creates a rainfall
Explanation:
1. Trees influenced the temperature by soaking heat and having “refrigeration”, thus cooling local climates.
2. Soils also soaked more moisture than non-forest soils, more water for catchments and allowing trees to produce this moisture in the atmosphere.
How do temperature and rainfall affect the distribution of biomes?Biomes are determined largely by temperature and rainfall, biomes at higher latitudes ) are cooler and drier.
Nearer to the equator, biomes are generally warmer and wetter, as warmer air holds more moisture than colder air.
Thus, temperature, rainfall, and the type of forest are interconnected.
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how do an enzyme and substrate to one another? what is the lock and key model of enzyme function?
Answers
In other words, the substrate is complementary (same shape) to a specific enzyme, so the substrate can bind/fit to the enzyme.
how can an error in dna get us sick?
Pleaseeee explain!
Answers
Answer:
Errors during Replication. DNA replication is a highly accurate process, but mistakes can occasionally occur as when a DNA polymerase inserts a wrong base. Uncorrected mistakes may sometimes lead to serious consequences, such as cancer. Mutations: In this interactive, you can “edit” a DNA strand and cause a mutation.
YO PLZ HELP!!
The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use
within the cell.
Answers
Answer: The Golgi apparatus modifies, packages, and sorts proteins for secretion or use within the cell
Explanation:
The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use within the cell. The Golgi apparatus is found close to the nucleus of the cell where it modifies proteins that have been delivered in transport vesicles from the RER.
Hope this help.
Answer:
.......................
have a good day :)
Explanation:
What are the five main functions of bone?
Answers
Answer: The five main functions of bone is that it gives the body its shape, allows movement, makes blood cells, and provides protection for organs and stores minerals.
Explanation:
2. protection: bony cavities around organs, protects heart and lungs, the canal cavity protects the brain
3. movement: bones form joints which provide levers for movement
4: hematopoiesis: (blood cell production) red marrow produces both RBCs and WBCs
5. mineral storage and homeostasis the skeleton forms a reservoir for minerals, especially calcium, for maintenance of homeostasis (Ca+ are essential for nerve impulse conduction)
classify microbes into five groups based on oxygen requirements. which group(s) of microbes have protective enzymes and which group(s) of microbes do not?
Answers
Microorganisms can be categorised into the following groups based on their oxygen requirements:
Aerobic, facultative, anaerobic , capnophilic and microaerophilic
Explain the types of microbes (oxygen requirements)?The need for oxygen can be used to categorise different types of microorganisms. The way that bacteria meet their energy needs is reflected in the amount of oxygen they need.
Aerobes thrive in ambient air, that contains a 21% oxygen content and a negligible (0.03%) carbon dioxide content.Because oxygen is poisonous to anaerobes, they cannot develop there. Free O2 is not the final electron acceptor for anaerobes.aerobic (requires O2), facultative (grow in presence/absence of O2), anaerobic (growth in absence of O2), capnophilic (CO2 can stimulates growth), and microaerophilic (needs decreased O2 tension).To know more about the types of microbes, here
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how does cholesterol in animal cell membranes affect the fluidity of the bilayer?
Answers
Cholesterol is a type of lipid that is found in the animal cell membranes. It is important for maintaining the fluidity and stability of the bilayer. Cholesterol acts as a buffer, preventing the fatty acid tails of the phospholipid bilayer from packing too tightly together, which can make the membrane less fluid.
At the same time, it also prevents the tails from being too loosely packed, which can make the membrane too fluid. Therefore, cholesterol helps to regulate the fluidity of the membrane, ensuring that it remains flexible enough to allow for membrane proteins to function properly while maintaining the integrity of the bilayer.
This is particularly important in cells that are exposed to varying temperatures, as the fluidity of the membrane needs to be adjusted in response to changes in temperature.
Overall, cholesterol plays a crucial role in maintaining the proper structure and function of the animal cell membrane.
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Of energy-absobing reaction and energy-releasing reaction which one is more likely to start spontaneosly and why?
Answers
Answer:
Energy releasing reaction = exergonic reaction (negative G) is more likely to be spontaneous.
Explanation:
Exergonic reactions do not need any input of energy, and therefore are happening spontaneously. On the other hand, endergonic reactions need an energy input. These reactions are often paired = coupled reactions.
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What are some characteristics of flowers that draw insects to them and how did the visits of insects help flowering plant survive?
Answers
Answer: it depends on the type of insect but sometimes it could be the pollen the smell or.the shape /hue of the plant
Explanation: when an insect goes to a flower,picks up the pollen and brings it to other plants it helps make other ones grow.
What are the three main parts of the nervous system
Answers
Answer:
brain, spinal cord, and nerves
Explanation:
you could be meaning something else but this is what i was taught in anatomy
Answer:
They are the: Central nervous system,
Peripheral nervous system,
Automatic nervous system.
Examine a two-gene cross in which a mutation in herc2 is epistatic to the oca2 gene. In a cross between a blue-eyed oohh woman and a blue-eyed oohh man, what eye color will the progeny have?.
Answers
In a cross between a blue-eyed oohh woman and a blue-eyed oohh man, what eye color will the progeny have blue eye color.
According to research on the genetics of eye color, blue eyes are caused by a mutation in the neighboring, unrelated gene HERC2. The gene OCA2, which controls the production of the brown pigment melanin, is silenced by this mutation. Today, between 20 and 40 percent of Europeans have blue eyes. The quantity of functional P protein that is generated is decreased by a number of frequent changes (polymorphisms) in the OCA2 gene.People with a variation in this gene have blue eyes instead of brown because less P protein implies less melanin is present in the iris.A disturbance in the normal generation of melanin brought on by OCA2 gene mutations results in visual issues and a loss of hair, skin, and eye color. Oculocutaneous albinism type 2 refers to oculocutaneous albinism brought on by mutations in the OCA2 gene.Learn more about the Inheritance with the help of the given link:
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Explain why Euglenozoa cannot be classified as either plants or animals?
Answers
Euglenozoa are monophyletic group of flagellated protists as well as free-living, symbiotic, and parasitic species. According to genetic studies, Euglenozoa are meither plant nor animal despite the suffix zoa. They are somewhat the living dependent of a few of the primal unicellular organisms called eukaryotes. It is also a genus of unicellular flagellate protists where the word "unicellular" means that the organism consists of one cell only that's why they're not considered plant or animals.
Explain the roles of cytoplasm and the mitochondria in cellular respiration.
Answers
Answer:
Mitochondria have an important role in cellular respiration through the production of ATP, using chemical energy found in glucose and other nutrients. Mitochondria are also responsible for generating clusters of iron and sulfur, which are important cofactors of many enzymes
Explanation:
When your body goes into fight-or-flight mode, what happens to the oxygen that is in your brain?.
Answers
Answer:
Fight or flight
The amygdala activates this fight-or-flight response without any initiative from you. When that part of your brain senses danger, it signals your brain to pump stress hormones, preparing your body to either fight for survival or to flee to safety.
2. What do plants need in order to perform photosynthesis?
Answers
Answer: To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.
The thin muscular bands of the muscular layer of the large intestine are called the ________.
Answers
The thin muscular bands of the muscular layer of the large intestine are called the teniae coli.
The wall of the large intestine contains the similar kinds of tissue which are present in other regions of the digestive tract. However, there are a few discriminating features. The mucosa contains a large number of goblet cells but lacks presence of any villi.
The longitudinal muscle layer, even though existent, is not complete. The longitudinal muscle is restricted to three definite bands, called teniae coli, which cover the full extent of the colon.
Contraction of the teniae coli applies force on the wall and results in the formation of sets of pouches, known as haustra, across the colon.
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A city in the U.S. Southwest is planning to restore some wetlands in a park running along its downtown river. A question has been raised about mosquitoes. Some think that mosquitoes will promote the bird population and that the natural beauty of the project will outweigh the risks. Others are worried that the mosquitoes might bring of the such diseases as malaria, especially as more people migrate from the south. How should city planners balance these concerns?
Answers
City planners faced with the question of balancing concerns regarding mosquitoes in wetland restoration projects need to consider both the potential benefits and risks involved. On one hand, mosquitoes can serve as a food source for birds and contribute to the biodiversity and ecological balance of the wetland ecosystem.
They play a role in supporting the bird population and enhancing the natural beauty of the park. These aspects can be important factors in promoting environmental sustainability and attracting visitors to the area. On the other hand, there are legitimate concerns about the potential risks associated with mosquitoes, particularly in terms of disease transmission. While malaria is not typically a concern in the United States, other mosquito-borne diseases such as West Nile virus and Zika virus may pose risks to public health. As migration patterns change and more people move from regions where these diseases are prevalent, the potential for transmission could increase.
To strike a balance, city planners should consider implementing measures to mitigate the risks associated with mosquitoes while maximizing the benefits of wetland restoration. This can include implementing mosquito control strategies such as monitoring and targeted insecticide use, creating habitats for natural predators of mosquitoes, and providing education and awareness programs for the public. By adopting a comprehensive approach that addresses both ecological and public health considerations, city planners can create a wetland restoration project that balances the promotion of biodiversity and natural beauty with the protection of public health.
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Humans use many chemical substances for farming that consequently affect biodiversity. These compounds, which are rich in nitrogen and phosphorus, are used to fertilize crops. Excessive use of these compounds causes
Answers
Answer:
algal growth due to eutrophication
Explaination:
Eutrophication is where these nutrient rich compounds mix with nearby water sources and promote the growth of large amounts of algae. Algae go through respiration and take up the dissolved O2 in water which causes these areas to experience low O2 levels. Everything needs O2 to survive thus nearby organisms and plants die out creating dead zones.
Answer:
Eutrophication and Algal growth
Explanation:
I just got it right.
Which term describes the relationship in which one organism lives inside the other one. Check ih correct answer
Answers
Answer:
The term that describes the relationship in which one organism lives inside the other one is endosymbiosis.
Explanation:
cytokines that send regulatory signals between cells of the immune system are . a. monokines b. tumor necrosis factors c. interleukins d. interferon
Answers
One specific group of cytokines that send regulatory signals between cells of the immune system is interleukins. The correct answer is c. interleukins.
Cytokines are small proteins that play a crucial role in cell signaling, particularly in the immune system. They act as messengers between cells, helping regulate various biological processes such as inflammation, immune response, and cell growth. One specific group of cytokines that send regulatory signals between cells of the immune system is interleukins.
Interleukins are a family of cytokines produced mainly by white blood cells, such as lymphocytes and macrophages. They play a vital role in regulating the immune response by facilitating communication between immune cells. There are several different types of interleukins, each with a specific function in the immune system.
In contrast, the other options provided are not as accurate:
a. Monokines - This term refers to a group of cytokines that are produced by mononuclear phagocytes, a type of white blood cell. While they do have some regulatory functions, they are not specifically involved in the communication between immune cells.
b. Tumor necrosis factors (TNFs) - These are a group of cytokines that play a role in the regulation of the immune response, particularly in the context of inflammation and apoptosis (programmed cell death). While they do have some communication functions, they are not the primary cytokines responsible for immune cell communication.
d. Interferons - These are another group of cytokines involved in the immune response, particularly in antiviral defense. They help protect cells from viral infections by signaling neighboring cells to produce proteins that inhibit viral replication. While they do participate in cell communication, they are not the primary cytokines responsible for immune cell communication. Option C .
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