Answers
The cell is the smallest functional structure of organisms. This structure is important because it is responsible for virtually the entire command of metabolism.
The exercise points to the cell nucleus. The nucleus is responsible for storing the cell's genetic material.
Therefore, the correct alternative is "houses the cell's DNA". Alternative "B" is correct.
Related Questions
Which of the following is an example of facilitated diffusion?
Answers
Answer:
C. red blood s allowing glucose to move in and out.
Answer:
C. red blood cells allowing glucose to move in and out.Explanation:
Choose the event below that does not occur during bacterial conjugation. Multiple Choice The recipient cell becomes a donor cell after conjugation. Enzymes cleave one strand of the DNA at the origin of transfer. Transfer of the DNA strands occurs in both directions. Shortening of the pilus occurs during conjugation. Direct contact between is made between donor and recipient cells.
Answers
Answer: The event that DOESN'T occur during bacterial conjugation is (Transfer of the DNA strands occurs in both directions)
Explanation:
Bacterial Conjugation can be defined as the type of sexual reproduction that can take place in bacteria in which genetic materials are being moved from a bacteria donor cell to a recipient through a DIRECT contact. The bacteria cells which act as donors contain DNA called the fertility factor ( F factor).
The detailed stages of conjugation which occurs in bacteria includes:
--> A direct contact is first established between the donor cell and the recipient cell through the use of a structure called the pilus. This structure is projects out from the donor cell.
--> the pilus shortens and a direct contact established between the two bacteria leads to formation of conjugation tube.
--> At the Origin of transfer site, an enzyme known as the HELICASE cleaves one strand of the F factor DNA. A strand is transferred to the recipient bacterial cell.
--> In the last step, the donor cell and the recipient cell, both contains single-stranded DNA of F - factor. Therefore, the recipient cell also contain a copy of F-factor and become a donor cell.
The option which says that transfer of DNA strands occurs in both directions is wrong because from the steps listed above, one strand of the F-factor DNA is transferred from a donor bacterial cell to a recipient, that is, unidirectional transfer of DNA and not in both directions.
Would it have been possible to determine the identity of the unknown if a whole egg was used instead of only the albumin? Explain you answer noting that egg yolks contain lipids and proteins.
Answers
In this case, the identity of the egg can be determined by using more than albumin because it is a very common protein present in all eggs.
What is albumin?Albumin is one of the most abundant types of protein in eggs, which is present in different eggs of species as well as other types of proteins including globulins, mucoproteins, etc. This protein (albumin) is also present in tissues.
In conclusion, in this case, the identity of the egg can be determined by using more than albumin because it is a very common protein present in all eggs.
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What is the speed of grid method in forensics
Answers
Not to sure tho hope this helps
products of biotechnology
Answers
Answer:
Increasingly, modern biotechnology is being used here. Products include vitamins, citric acid, natural colourings, flavourings, gums and enzymes. Gums used as low-calorie thickening agents and low-calorie sweeteners from natural ingredients are also produced using modern biotechnology.
What is phinocytosis?
Answers
Answer:
The indigestion of liquid into a cell
Explanation:
you go out to dinner with your best friend. during dinner you consume the following meal: spinach green with sunflower seeds, a Dr. Pepper and a piece of unbuttered french bread. identify the biological molecules that would likely be present and what would they be processed into after
Answers
Answer:
The biology Molecules that will.be present in what she consumed are Carbohydrates from unbuttered bread, vitamins green spinach, Fat and oil or lipids from sunflower seeds, proteins...
The Carbohydrates is processed into glucose, proteins is processed into amino acids, lipids is processed into fatty acids and glycerol.
Explanation:
From the food consumed, The biology Molecules that will.be present in what she consumed are Carbohydrates from unbuttered bread, green spinach contains vitamins like vitamin K, vitamin A, vitamin C, vitamin B12 , minerals like magnesium, iron, Fat and oil or lipids from sunflower seeds, proteins...
The Carbohydrates is processed into glucose after enzymes like salivary amylase acts on it from the chewing and in the stomach which produces glucose which makes it easily absorbable , proteins is processed into amino acids by the activity of hydrochloric acids and protease that processed it into amino acids, lipids is processed into fatty acids and glycerol by the activities of the enzymes lipase.
The minerals and vitamins present are in a way they can be absorbed.
The molecules that will be present in the foods shown above would be sugar, carbohydrates, lipids, fiber, vitamins, calcium, phosphorus, potassium, proteins, and magnesium.
We can arrive at this answer because:
French bread will supply the body with carbohydrates. These carbohydrates will be turned into sugars, mainly glucose.The proteins present in spinach will be transformed into amino acids that will be used in the production of other proteins.The lipids present in sunflower seeds will be transformed into fatty acids, glycerol, and fat.The calcium present in spinach will be absorbed by the bones.Vitamins, phosphorus, and potassium will be broken down and dissolved in the bloodstream.Fiber will be metabolized by the intestine.Based on this, we can say that proper nutrition is important because it promotes essential molecules for the functioning of the body.
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A bacterium called Salmonella can cause
food poisoning.which kingdom is it in?
Answers
Answer:
monera kingdom
Explanation:
Answer:
The kingdom is Monera Kingdom
Explanation:
About _____ of the approximately 200 million sperm actually make it to a woman's egg to have a chance at fertilization.
a. 1
b. 200
c. 2 million
d. 20,000
Answers
The correct answer is b. about 200 of the approximately 200 million sperm actually make it to a woman's egg to have a chance at fertilization.
The definition of sperm is a male reproductive cells which are produced in the testicles, which is a male's reproductive organ. In human reproductive process, the sperm cells from a male will travel to a woman's reproductive organ called ovum which then the sperm will enter fertilize the ovum then conception occurs and embryo will develop. Out of the approximately 200 million sperm cells that travels into the female reproductive organs, only a handful of the strongest sperm which is about 200 will actually make it into the ovum for fertilization.
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why do prevailing winds and positions of islands cause warm ocean currents to pass Christchurch in normal years
Answers
Prevailing winds and positions of islands cause warm ocean currents to pass Christchurch in normal years for the following reasons:
The prevailing winds in the region are generally from the southwest.The position of islands such as New Caledonia and Norfolk Island can also influence the movement of warm ocean currents in the region. In the case of Christchurch, there are a few reasons why warm ocean currents tend to pass by the region in normal years:Warm ocean currents are typically driven by prevailing winds, oceanic currents, and other factors such as the shape of coastlines and the positions of islands.
The prevailing winds in the region are generally from the southwest. These winds blow parallel to the coastline, which means that warm ocean currents are deflected away from the shore and towards the east. As a result, the waters off the coast of Christchurch are generally cooler than those further north or northeast. The position of islands such as New Caledonia and Norfolk Island can also influence the movement of warm ocean currents in the region. These islands help to direct the flow of warm water towards the Coral Sea and the Tasman Sea, rather than towards the coast of New Zealand. This means that Christchurch, which is located on the eastern coast of the South Island, is less likely to experience the effects of warm ocean currents.Note: That oceanic currents and winds can be affected by a range of factors, including El Niño and La Niña events, which can cause changes in sea surface temperatures and alter the path of ocean currents. As a result, there may be some years when warm ocean currents do reach Christchurch, even if this isn't typically the case in normal years.
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What characteristic was used in this mission to determine a banana's relationship to other the plants?
Answers
The characteristic used to determine a banana's relationship to other plants is its morphology or physical characteristics.
What is morphology?
Morphology is the study of the form and structure of living organisms, including their physical and anatomical features. In biology, morphology is used to describe the appearance, shape, and size of different parts of an organism, such as its organs, tissues, cells, and even its molecules. This includes the study of external and internal structures, as well as their function, development, and evolution. Morphological characteristics are often used in the classification and identification of different species, as they can provide important clues about an organism's evolutionary history, ecological niche, and relationship to other organisms.
We assume you are referring to the scientific classification of bananas in the plant kingdom. In this case, the characteristic used to determine a banana's relationship to other plants is its morphology or physical characteristics. Bananas belong to the genus Musa, which is part of the family Musaceae.
The characteristics used to classify plants into different taxonomic groups include their structural features, such as their leaves, stems, flowers, and fruit, as well as their genetic and evolutionary relationships. These characteristics are used to group plants into increasingly broader taxonomic categories, from species to genus, family, order, class, phylum, and kingdom.
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Which one of the following is a defining characteristic of animals but not of plants? Group of answer choices Animals, but not plants, are autotrophs Animals, but not plants, are eukaryotes Animals, but not plants, are heterotrophs Animals, but not plants, are prokaryotes
Answers
Answer:
the given characteristic of animals but not of plants are:
eukaryotic animal
heterotrophs animals.
The characteristic that defines animals but not plants is that animals, but not plants, are heterotrophs.
What are heterotrophs?Heterotrophs are living organisms that are incapable of synthesizing their own food, like autotrophs.
Plants are autotrophic in nature meaning that they can produce their own food using sunlight energy.
All animals are heterotrophic in nature i.e. do not exhibit any form of autotrophism.
Therefore, the characteristic that defines animals but not plants is that animals, but not plants, are heterotrophs.
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A crime scene has the following blood splatter against a wall 2 feet from where the victim was standing what type of impact would have caused this pattern 
Answers
Answer:How It’s Done. Bloodstain Patterns that May be Found. Bloodstains range in both amount of blood and type of pattern—from pools of blood around a body to obvious spatter patterns on the walls to microscopic drops on a suspect’s clothing.
Explanation:
This histogram shows ranges of possible exam scores and
the number of students who scored within each range.
Based on these data, how many students received a score higher than 95?
Answers
Based on these data, the number of students received a score higher than 95 is 6 or fewer.
Option C is correct.
What is histogram?A histogram is described as an approximate representation of the distribution of numerical data and is the term which was first introduced by Karl Pearson.
Histograms show numerical or quantitative data, whereas bar charts show categorical factors.
The numerical data in a histogram will typically be continuous in most cases having infinite values and would be ridiculous to attempt to plot an axis that included every potential value for a continuous variable.
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Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
Answers
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
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Monomers linked together to form a polymer could be described as beads in a multicolored necklace. Which statement about monomers is true with respect to the above analogy?
A. Monomers in a polymer could be linked in various ways.
B. Monomers in a polymer are of different types.
C. Monomers in a polymer look different but are structurally similar.
Answers
Monomers linked together to form a polymer could be described as beads in a multicolored necklace because monomer in a polymer are of different types.
The light reactions produce ________, which are used in the Calvin cycle. The Calvin cycle produces ________, which are in turn used in the light reactions.
Answers
The light reactions produce ATP and NADPH, which are used in the Calvin cycle. The Calvin cycle produces glucose and other organic compounds, which are used in the light reactions.
The light reactions in photosynthesis produce ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate), which are used in the Calvin cycle. During the light reactions, light energy is captured by chlorophyll and other pigments, which initiates a series of reactions that generate ATP through photophosphorylation and NADPH through electron transport. These energy-rich molecules are then utilized in the Calvin cycle.The Calvin cycle, also known as the dark reactions or the light-independent reactions, takes place in the stroma of chloroplasts. It utilizes ATP and NADPH from the light reactions, along with carbon dioxide (CO2), to produce glucose and other organic molecules through carbon fixation. This process involves a series of enzymatic reactions, such as carbon dioxide fixation, reduction, and regeneration of the starting molecule, ribulose-1,5-bisphosphate (RuBP).Thus, the light reactions provide ATP and NADPH to the Calvin cycle, while the Calvin cycle produces glucose and other organic compounds that can be used as energy sources or for building cellular structures.For more such questions on Calvin cycle:
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True or false when a haploid sperm and a haploid egg join the result is a diploid cell  
Answers
Answer: true
Explanation:
Once fertilized, the egg is called a zygote. Fertilization is not complete, however, until the two haploid nuclei (called pronuclei) have come together and combined their chromosomes into a single diploid nucleus.
Calculate the total amount of fibre there would be in a meal containing 200 g of chicken, 200g of rice and 100g of spinach. Show your working.
Answers
Sometimes, during the process of replication, the DNA code is copied incorrectly, and an incorrect nucleotide is attached to the new strand of DNA. The type of mutation showed below is called a:a) substitutionb) insertionc) deletiond) translocation
Answers
We can see that the original DNA sequence is ATC GTA, with 6 nucleotides.
The incorrect sequence is ATC CTA, also with 6 nucleotides.
Given that the number of nucleotides is the same, this mutation cannot be a deletion or insertion; and as there is only a change of which nucleotide is found in the 4th position, then this mutation is a substitution (a is the right answer)
Answer:
your answer will be Substitution
Explanation:
A section of the DNA code, called a gene, which codes for ....
Answers
Answer: A section of the DNA code, called a gene, codes for a specific protein or RNA molecule that plays a particular function in the body. The sequence of the nucleotides in the gene determines the sequence of the amino acids in the protein, which in turn determines the structure and function of the protein. The genes also control the development, growth, and maintenance of the body by regulating the expression of other genes and proteins.
Explanation:
Civil engineers conducted a land survey in a hilly region, where roads were carved out between steep hillside slopes. Complete the passage to reveal the engineers’ safety recommendations for the area. The engineers noted that the area was prone to rockfalls and landslides. They proposed a plan to secure the rocky hillside slopes using . They also advised their team that if the slopes are not stabilized, could cause damaging mass movement without warning.
Answers
Mass wasting is movement of rock and soil down the hill. The rocky hillside slopes can be secured by slope reinforcement. if the slopes are not stabilized, landslide can cause damage.
What do you mean by mass wasting?Mass wasting is the movement of rock and soil down slope under the influence of gravity. Rock falls, slumps, and debris flows are all examples of mass wasting. Often lubricated by rainfall or agitated by seismic activity.
The most common types of mass wasting are slumps, rockslides, debris flows, and earthflow. Slumps are slow and short-distance downslope movements of semi-consolidated earth material on a curved or planar sliding surface.
The most destructive type of mass movement is a landslide, which occurs when rock and soil slide quickly down a steep slope. Some landslides may contain huge masses of rock, while others may contain only a small amount of rock and soil.
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Answer:
wire mesh and bolts, gravity
Explanation:
Civil engineers conducted a land survey in a hilly region, where roads were carved out between steep hillside slopes. Complete the passage to reveal the engineers’ safety recommendations for the area.
The engineers noted that the area was prone to rockfalls and landslides. They proposed a plan to secure the rocky hillside slopes using wire mesh and bolts.They also advised their team that if the slopes are not stabilized, Gravity. could cause damaging mass movement without warning.
For 100 Points!
Which of the following factors are responsible for the annual rise and fall in carbon dioxide levels? (Several choices may be correct.)
A) fallen leaves decaying in autumn
B) consumption of more fossil fuels in the winter
C) plant growth in the spring
D) increase in surface temperature of the earth during summer
PS: I've tried A & D and B & D (they were both wrong)
Answers
I believe the answer is
A & C.
Following factors are responsible:-
Fallen leaves decaying in autumn.Plant growth in the springWhat is the reason for carbon dioxide rise in environment?Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy. Fossil fuels like coal and oil contain carbon that plants pulled out of the atmosphere through photosynthesis over many millions of years.What are the consequences of rise in carbon dioxide?Transpiration is affected by the degree of ground cover.Rising carbon dioxide concentrations will increase plant growth. More rapid leaf area development and more total leaf area could translate into more transpiration.Rising carbon dioxide concentrations will decrease leaf stomata. conductance to water vapor. This effect could reduce transpiration.Rising carbon dioxide concentrations and rising global temperatures.To know more about transpiration here
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Explain why IgG is low and what CD40's role is? Why is a mutation in that gene a problem?
Case Studies Tasks:
1Daniel: Susan and Joe had a wonderful little boy named Daniel, but he had been having an awful lot of bacterial infections and he was barely a year old. It seemed that the antibiotics cleared up one bacterial respiratory infection only to have another follow shortly. The scary thing was that Daniel had just fought off a case of pneumonia caused by Pneumocystis carnii, a fungal infection that was usually found in people with HIV. Waiting for the test results of an HIV test for their little boy was one of the worst experiences ever. Thank goodness it came back negative.
However, it seemed that their troubles were just beginning. After this last lung infection, the fungal one, and a negative HIV test, their doctor had ordered a number of other blood tests, including a genetic test that Susan didn’t fully understand. Apparently, the doctor was worried about Daniel’s immune system functions.
Susan had also met with a genetic counselor who collected a family history of any immune disorders. The details were vague, but Susan’s mother, Helen, knew that one of her three brothers had died young from an unexplained lung infection. Unfortunately, Grandma Ruth had passed away a few years ago, leaving them with numerous unanswered questions. Susan and Joe had an appointment with their doctor that afternoon to go over the results. When they arrived Dr. Dresdner led them into an office where Ms. Henchey, the genetic counselor, waited. This can’t be good, thought Susan. The doctor began by explaining that they had analyzed Daniel’s blood and found that while he had normal levels of B cells and T cells, his antibody levels were anything but normal. The levels of IgG, IgA, and IgE were very low, almost undetectable, and Daniel had abnormally high levels of IgM and IgD.
It appears that his immune system failed to undergo immunoglobulin isotype switching due to a CD40 ligand mutation in Daniel's DNA.
Answers
Answer: CD40 signaling of B cells promotes germinal center (GC) formation, immunoglobulin (Ig) isotype switching, somatic hypermutation (SHM) of the Ig to enhance affinity for antigen, and finally the formation of long-lived plasma cells and memory B cells (14).
Explanation:
give three functions of a fruit
Answers
Answer:
please make me brainalist and keep smiling dude I hope you will be satisfied with my answer
Explanation:
A fruit protects the immature seeds from animals and extreme climatic conditions. It stores food material. It attracts animals that help in dispersing or scattering the seeds to distant places.
Boost your digestion and heart health
write a letter to your uncle who is in abroad telling him u want to join vacation classes with ur friends but ur father is facing some financial problems so he can't afford so u need the help of your uncle who is in abroad
Answers
Explanation:
Dear Uncle [Uncle's Name],
I hope this letter finds you in good health and high spirits. I have been meaning to share some news with you, and I believe your guidance and support can make a significant difference in my life.
As you know, the summer vacation is fast approaching, and my friends and I have been planning to join vacation classes together. It is an opportunity for us to learn and engage in activities that would enhance our skills and broaden our horizons. We are all excited about the prospect of spending quality time together while acquiring new knowledge.
However, I regret to inform you that my father is currently facing some financial difficulties. Due to unexpected circumstances, he is unable to afford the expenses associated with the vacation classes. It has been a challenging time for our family, and my father's priority is to ensure our basic needs are met.
In light of these circumstances, I am writing to you, dear uncle, with the hope that you may consider extending your support. Your assistance would mean the world to me and enable me to participate in these vacation classes alongside my friends. Your generosity has always been a pillar of strength for our family, and I am sincerely grateful for everything you have done for us.
Attending these classes would not only be a source of knowledge and skill development but also a chance for me to bond with my friends and create lasting memories. It would enhance my educational journey and contribute to my personal growth. I genuinely believe that this opportunity would be a valuable investment in my future.
I understand that everyone has their own financial responsibilities and commitments. Therefore, I completely respect any decision you make, and I am grateful for your consideration. If it is not feasible for you to provide financial assistance at this time, I completely understand, and I will continue to explore other alternatives.
Thank you, dear uncle, for taking the time to read my letter. I eagerly await your response and value your guidance and support. Regardless of the outcome, please know that your love and presence in our lives mean more to me than anything material.
Sending my warmest regards and affection to you and the family. Take care, and I hope to hear from you soon.
With heartfelt gratitude,
[Your Name]
It is commonly stated that 'plants produce oxygen during the day and carbon dioxide at night'. Explain fully the limits of this statement.
Answers
Answer:
Yes, the statement is correct. Plants respire throughout the day, while photosynthesis takes place only in the presence of sunlight. ... At night, when there is no photosynthesis, no oxygen is released. Also, CO2 produced during respiration is not used by the plants.
Part D
Choose one of the hypotheses to make a prediction.
Answers
Answer:
this is a very confusing answer can you clarify better?
Which of the following models represents an atom that is most likely to form a cation with a charge of +1?
Answers
The atom represented by the model with one valence electron in its outermost shell is most likely to have the lowest ionization energy and hence is most likely to form a cation with a charge of +1.
The atom that has the lowest ionization energy is the one which is most likely to form a cation with a charge of +1. Ionization energy is defined as the energy required to remove an electron from an atom or ion in the gaseous state. Therefore, an atom with a low ionization energy requires less energy to remove its outermost electron and form a positively charged cation.
Among the models of atoms given, the atom represented by the model with one valence electron in its outermost shell is most likely to have the lowest ionization energy. This is because the valence electron is loosely held by the nucleus due to its large distance from it. As a result, it requires less energy to remove the outermost electron and form a cation with a charge of +1.
For example, Lithium (Li) has one valence electron in its outermost shell and has the lowest ionization energy among the elements in the first group. This makes it easy for Lithium to lose its valence electron and form a cation with a charge of +1.
In summary, an atom with a low ionization energy requires less energy to remove its outermost electron and form a positively charged cation.
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Note: The complete question is- Which of the following models of atoms represents an atom that has the lowest ionization energy, and is therefore most likely to form a cation with a charge of +1?
Saprolegnia, a parasitic water mold, parasitizes dying or dead
-blank1 - and has a cell wall composed of -blank2 -, unlike the true fungi, which have cell walls composed of -blank3 -
Answers
Answer:
Saprolegnia parasitizes dying or dead fish, and has a cell wall composed of chitin, unlike the true fungi, which have cell walls composed of cellulose.