A serving of macaroni and cheese contains 220 calories. A serving of macaroni and cheese contains 30 grams of carbohydrates, 7 grams of protein, and 8 grams of fat.
To calculate the total number of calories in the serving, we need to know how many calories are in each of these nutrients. Carbohydrates and proteins each contain 4 calories per gram, while fat contains 9 calories per gram. Therefore, we can calculate the total number of calories in the serving as follows:
30 grams of carbohydrate x 4 calories/gram = 120 calories7 grams of protein x 4 calories/gram = 28 calories8 grams of fat x 9 calories/gram = 72 caloriesTotal calories = 120 + 28 + 72 = 220 calories
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What do the elements in Group 17 have in common?
A. They tend to form ions with a -1 electric charge.
B. They are all found in nature in their pure forms.
C. They tend to form ions with a +1 electric charge.
D. They rarely react with any other elements.
SUBMIT
PLEASE HURRY
A. They tend to form ions with a -1 electric charge.
Elements in group 17 tend to form ions with a -1 electric charge in common.
What are elements?A chemical element is a species of atoms that have a given number of protons in their nuclei, including the pure substance consisting only of that species.
All elements have properties. Those properties include, but are not limited to, conductivity, magnetism, melting point, boiling point, color, state of matter, and others. Elements with similar properties are grouped together in different areas of the periodic table of elements.
An element is a fundamental item that can't be easily broken into smaller pieces. In chemistry and physics, an element is a substance that can't be broken down by non-nuclear reactions.
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I'll give you a brain list if you help me.
Answer:you r answer will be identical dna
Explanation:
Which substance should be monitored and controlled to help minimize the impact of human activity on air quality? A. Ozone B. Nitrogen C. Oxygen D. Water vapor
Ozone is the correct answer to your question
this is the correct answer
State lab review packet answers diffusion through a membrane -beaks of finches - making connections - relationships and bio diversity
Answer:
Diffusion can happen with or without a membrane. It always takes place down a concentration gradient, which means the substance will diffuse from an area of higher concentration to an area of lower concentration.
Biodiversity is critical to maintaining the balance of the ecosystem. Without a diverse collection of organisms, the species in the environment cannot thrive and are at a risk of extinction in extreme cases.
Hope that answers the question, have a great day!
How does homeostasis work?
Homeostasis is the body's ability to maintain a relatively stable internal environment despite external fluctuations.
It involves a series of processes that work together to regulate various physiological parameters within a narrow range. These processes ensure the optimal functioning of cells, tissues, and organs.
Homeostasis is achieved through feedback mechanisms involving three components: a receptor, a control center, and an effector.
The receptor detects changes in the internal environment and sends signals to the control center, which evaluates the information and initiates an appropriate response. The effector then carries out the necessary actions to restore balance.
Negative feedback is the primary mechanism in homeostasis. It operates by counteracting deviations from the desired set point.
For example, when body temperature rises, receptors send signals to the control center, which triggers responses like sweating and vasodilation to cool the body down. Once the temperature returns to the set point, the feedback loop is inhibited.
Positive feedback, on the other hand, amplifies the initial deviation from the set point, often to accomplish specific physiological processes like blood clotting or childbirth. However, these processes are tightly regulated and eventually transition back to negative feedback to maintain overall homeostasis.
Through these feedback mechanisms, homeostasis enables the body to regulate variables such as temperature, pH, blood glucose levels, fluid balance, and more.
It ensures the stability and optimal functioning of the body's internal environment, allowing cells and organs to function properly.
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what process contains the central dogma of molecular biology
The method by which genetic information moves from DNA to RNA and then to a functional product protein is known as the "central dogma" of molecular biology.
The Core Dogma of Molecular Biology is what it is known as. There are two processes: transcription and translation. Eukaryotic cells' nuclei are where the transcription process takes place.The method by which genetic information moves from DNA to RNA and then to a functional product protein is known as the "central dogma." DNA serves as a template for the production of messenger RNA molecules (mRNA). The fundamental tenet of biology holds that the genetic information encoded in DNA gets translated into single-stranded RNA and ultimately into protein.
(What process is the central dogma of molecular biology?)
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Label each item as a description of a haploid or a diploid cell.
——— is described 2n
——— is described as n
——— has single chromosomes each from one parent
———— somatic cell
———- makes fertilization possible
———— results from meiosis
————— fertilized zygote
Answer:
In image :)
Explanation:
Please I need help
what was significant about the inflammation in the lungs due to the inhalation of chlorine gas ?
Answer:
Humans exposed to high doses of chlorine can develop acute lung injury characterized by pulmonary edema, bilateral infiltrates on chest X-ray, hypoxemia, and respiratory failure.
Review your models of matter and energy transformations from pca cellular respiration and pca photosynthesis. Which molecule, made by the light reactions in plants, could be used by cellular respiration in some bacteria?.
The molecule that is produced by light reactions in plants and that some bacteria can utilise for cellular respiration is oxygen. Photosynthesis only occurs in the light, but cellular respiration occurs in both the dark and the light. While complex organic molecules also release energy during cellular respiration, complex organic compounds store energy during photosynthesis.
The majority of autotrophs, or organisms that do not rely on external sources of food, generate the majority of their energy through light reactions. Photoautotrophs are the name given to these organisms. When light is present, chemical reactions referred to as "light reactions" take place. The plant-based light-induced reaction is known as photosynthesis.
This is the conversion of light energy into chemical energy. In this process, light energy from the sun is converted into the compounds ATP and NADPH (nicotinamide adenine dinucleotide phosphate).
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A researcher discovered a small protein secreted by the pituitary that functions as a growth factor to stimulate cell division in mouse skin cells. The skin cells of mice that have a mutation in a particular gene do not respond to this growth factor. When the researcher isolated and sequenced the gene, she found that it coded for a protein kinase. Which statement best explains this
Answer:
The signal transduction pathway has at least one step in which the signal is transmitted by the activation of a protein via phosphorylation.
Explanation:
If you have done odesseyware please help
Air that comes in from the ocean during the day is usually _____.
1. cooler than the on land
2. warmer than the air on land
3. the same temperature as the air on land
4. drier than the air on land
answer iits warmer
Explanation:
2
bc the water absorbs the heat from the sun
what are three ways nuclear energy is used once it reaches earth's surface?
Answer:
conduction convention and radiation
Which of the following statements about the anaphase-promoting complex (APC) is true? Choose all that apply It promotes the degradation of proteins that regulate M-phase. It tags CDK with ubiquitin, so it gets sent to the proteasome Its activity is required for the cell to enter metaphase It is continuously active throughout the cell cycle It promotes the breakdown of cohesins It tags cyclin with ubiquitin, so it gets sent to the proteasome Its activity is stimulated by M-Cdk. It inhibits M-Cdk activity
The following statements about the anaphase-promoting complex (APC) are true:
1. It promotes the degradation of proteins that regulate M-phase.
2. It tags cyclin with ubiquitin, so it gets sent to the proteasome.
3. It promotes the breakdown of cohesins.
4. Its activity is stimulated by M-Cdk.
Thus, the correct options are A, B, E, and F.
The anaphase promoting complex or cyclosome (APC/C) is a large multi-subunit E3 ubiquitin ligase that orchestrates cell cycle progression by mediating the degradation of important cell cycle regulators. The statements above are accurate because the APC plays a crucial role in regulating the progression of the cell cycle, specifically during the M-phase (mitosis). It promotes the degradation of key proteins, helps break down cohesins to separate sister chromatids, and is regulated by the M-Cdk complex.
Thus, the correct options are A, B, E, and F.
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what did the discovery of neanderthal dna in modern human genomes tell us about gene flow as homo sapiens emerged from africa? group of answer choices all of the human variation that exists today was derived from the variation that existed in the population of homo sapiens that first emerged in africa; there is no evidence of interbreeding with other hominin populations. very little human variation is derived from what was present in the population of homo sapiens that first emerged in africa; a significant amount of variation was introduced after interbreeding with neanderthals and denisovans. human variation is largely derived from what was present in the population of homo sapiens that first emerged in africa, but a limited amount of variation has been passed from neanderthals and denisovans through interbreeding after homo sapiens emerged from africa. although dna extraction techniques continue to improve, there are not enough data to provide conclusive evidence about whether modern humans interbred with neanderthals.
Breeding between Neanderthals and modern humans. This is a solid indication of how human migration out of Africa actually occurred: rather than leaving Africa in one or more massive dispersals, Neanderthal DNA entered Africa through gene flow back and forth throughout time.
What does the DNA of Neanderthals reveal?Neanderthal DNA has been linked in studies to fertility, pain perception, and immune system function. Neanderthal DNA may have an impact on a person's height, skin tone, hair color, sleeping habits, mood, and even addiction in modern-day Europeans.
What is implied by the absence of Neanderthal DNA in contemporary African humans?Other parts of the current non-African genome do not include any Neanderthal DNA, which shows that natural selection weeded out any Neanderthal versions of the genes in these locations since they would have caused issues in modern people.
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i crosscut my nail with a knife . will it ever heal???
. a series of mitochondrial proteins that transfer electron energy to atp and require oxygen.
The series of mitochondrial proteins that transfer electron energy to ATP and require oxygen is known as the electron transport chain (ETC).
The ETC is a critical component of cellular respiration and occurs in the inner mitochondrial membrane. It consists of a series of protein complexes, including NADH dehydrogenase, succinate dehydrogenase, cytochrome b-c1 complex, cytochrome c, and cytochrome oxidase. These complexes work together to transfer electrons derived from NADH and FADH2, which are produced during earlier stages of cellular respiration, and transfer them along the chain.
As electrons are passed through the protein complexes, energy is released and used to pump protons across the mitochondrial membrane, creating an electrochemical gradient. This gradient is then used by ATP synthase to produce ATP through a process known as oxidative phosphorylation.
The final acceptor of the electron transport chain is oxygen, which combines with hydrogen ions to form water. Thus, the ETC connects the process of electron transfer to the production of ATP, relying on oxygen as the final electron acceptor.
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The complete question is:
A series of mitochondrial proteins that transfer electron energy to ATP and require oxygen is called ______.
A team of scientists is studying three related species of thrushes, which are a type of bird. In all three species, the thrushes feed on insects and build nests in trees. The team uses a computer simulation to predict the populations of each species in a tract of forest, both with and without the presence of other thrush species. The results are shown in the table.
Based on the computer simulations, which statement MOST likely describes an ecological relationship among the three species?
(A) All three species compete for the same niche, and species B is the strongest competitor.
(B) Species A and species C compete for the same niche, and species C is the stronger competitor.
(C) Species B fills a different niche than either species A or species C.
(D) Either species A or species C out-competes species B for its niche.
Based on the computer simulations, the statement that MOST likely describes an ecological relationship among the three species is:
Either species A or species C out-competes species B for its niche; option D.What is an ecological niche?An ecological niche is a particular place or position occupied by a species in an ecosystem.
The ecological niche of a species is where the species obtain its basic needs such as food, shelter and space.
Several species may also compete foe the same ecological niche, and the strong competitor among the species will grow and thrive in that particular niche.
Considering the results of the study when the species A, B, and C were placed in a given tract of the forest alone as well as in the presence of the other species, it can be concluded that the three species compete for the same resources and that species C is the strongest competitor.
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Give reasons. Cells need energy
Answer:
#carry on learning
hope it's held
mark me as brainliest
All living cells need energy to function in order for the chemical reactions occurring in the cells to take place. In humans this energy is obtained by breaking down organic molecules such as carbohydrates, fats and proteins.
what is one way eukaryotic cell machinery can distinguish between various membranes in the cell?
In contrast to prokaryotes, eukaryotic cells feature internal membranes that enclose numerous organelles in addition to a plasma membrane that covers the entire cell.
Each membrane has its own set of specific proteins. within a lipid bilayer. The main distinction between prokaryotic and eukaryotic cells is that only eukaryotic cells have a nucleus and other membrane-bound organelles. Prokaryotes and eukaryotes are made up, respectively, of prokaryotic and eukaryotic cells. Prokaryotic cells typically lack the size and complexity of eukaryotic cells. In order to carry out metabolism, generate energy, and move chemicals throughout the cell, they need a number of specialised internal membrane-bound organelles.
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The number of fatty acids chains present in a molecule of a
phospholipid is _
The molecule of phospholipid contains two fatty acid molecules linked to -OH groups and a nitrogen-containing base bound to the phosphate group.
Phospholipids are a class of lipids whose molecule has a hydrophilic head containing a phosphate group and two hydrophobic tails derived from fatty acids, joined by an alcohol residue.
Thus, it has a strongly non-polar and hydrophobic tail consisting of fatty acid chains and a polar and hydrophilic head comprising a negatively charged phosphate group and a positively charged base. Because of this dual solubility, the phospholipids are called AMPHIPHATIC lipids.
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1. Use a map to find the approximate location of each food source on the map of
North and Central America in the Data for Part 1 section. Make a mark (eg, an Xor
a small circle) on the map below at each location to indicate the approximate source
of each of each food in the sample data. If it came from outside the map, use an
arrow to indicate that its source is overseas (10 points)
Map of North America and Central America
The food map of America is given as attached.
What is the explanation for this ?The map illustrates the prevalence of monoculture in the United States, with corn being the most extensively grown crop,occupying the largest land area.
Some counties have up to 63% of their land dedicated to corn cultivation. Soybeans rank second and are primarily used as livestock feed,rather than solely for tofu production.
Food maps are visual representations that depict the distribution and prevalence of different food crops or agricultural practices in specific regions or countries.
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[Select ALL That Apply]
A.Diagram B has a Greater concentration of solute on in the inside of the cell..
B. Diagram A is isotonic..
C. If more Solute was Added to the solution of Diagram C, The Water would flow into the Cell..
D.The Solution in Diagram B was Diluted to the Same Concentration as the inside of the Cell, The Solution would be isotonic..
E. If the Concentration of Solute in the cell of Diagram A increase, the Solution would Become Hypotonic..
Answer:
c is the correct answer of these questions
Choose a call sign, broadcast frequency (has
to be AM), and listening area for a campus
radio station based on your research.
Amplitude modulation, or AM for short, refers to a technique for encoding the audio signal on the carrier frequency. AM radio stations are referred to as "mediumwave" stations in various nations.
What is AM broadcasting?AM broadcasting, or radio broadcasting, uses amplitude modulation (AM) transmissions. It is still in use today all over the world, especially for medium wave transmissions (also known as the "AM band") but also on the longwave and shortwave radio bands. It was the first method for creating audio radio transmissions.Using frequency modulation, FM broadcasting is a type of radio transmission (FM). Wide-band FM, developed by American engineer Edwin Armstrong in 1933, is utilized all over the world to deliver high-fidelity sound over broadcast radio. Compared to other broadcasting methods, such as AM broadcasting, FM broadcasting has a higher fidelity—that is, a more accurate reproduction of the original program sound.Amplitude modulation, or AM for short, refers to a technique for encoding the audio signal on the carrier frequency. AM radio stations are referred to as "mediumwave" stations in various nations. Because AM was the first format to be utilized to broadcast radio signals to the general public, they are also frequently referred to as "standard broadcast stations." Due to "skywave" propagation, which happens when the AM signal is bounced off the ionosphere and back to the ground, many AM stations are either daytime-only stations or stations authorized to run at very low power levels at night.Therefore, amplitude modulation, or AM for short, refers to a technique for encoding the audio signal on the carrier frequency. AM radio stations are referred to as "mediumwave" stations in various nations.
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plz do it all i will give brainlest and thanks to best answer do it right plz
Answer:
I think the desert because you don’t need that many leaves like cactuses, and cactuses have stems to store water so it can survive and these types of plants can survive in the desert, hope this helped :)
Explanation:
Answer:
A
Explanation:
OVIOUSLY
what do you think are the odds of getting four tails in a row? Explain your answer.
Answer:
It depends on how many flips you do.
Explanation:
None.
Can someone please help me
Read the Bulleted texts to get the main part of the Answers
Photosynthesis is done only by plants by using sunlight water and CO2
All living organisms can do cellular repirations
She is wrong because she said plants only do photosynthesis but that's not true because trees do cellular repiration too because when there is no sunlight they need energy. So what they do is they break down the sugar doing glycolysis by using mitochondria. Sidenote:Both plants and animals have mitochondria in their cells.They need energy right when there is no sun.So they use glycolysis.Glyco means sugar and lysis means break down.Then there come 2 steps.
Aerobic Respiration
Anaerobic Repiration
If the sugar that we just break down contains oxygen the that sugar falls to the aerobic respiration
If it does not contain sugar it goes to Anaerobic Respiration
Aerobic Respiration : It would use Kreb Cycle to Make 2 ATP.ATP is for Adension Tri Phosphate. Which is basically enregy.Then there comes Electron Transport Chain.Where they use protons to gain 32 ATP.Overall
2 ATp from glycolysis 2 from Kreb Cycle and 36 from ETC so 36
Anerobic: They fall part to 2 major respirations of this section which are
1. Alcoholic Repiration - It contains no oxygen, gain 2 atp and used to make breads and alcohol
2.Lactic Acid - gain 2 ATp and no oxygen and used in yogurt you eat and it creates sore in your muscles
She is wrong because that is completely wrong statement that trees only do photosynthesis but no they use cellular Respiration to gain energy from ATP when there is no sun available to them
Hope that answers the question
Using the following terms, trace the path of urine from the renal arterioles (bloodstream) to the point at which urine leaves the body. The first answer is provided. glomerular capsule glomerulus renal pelvis renal tubule ureter urethra urinary bladder urinary meatus
glomerulus__________________________
The path of urine from the renal arterioles to the point at which urine leaves the body is as follows: glomerulus, glomerular capsule, renal tubule, renal pelvis, ureter, urinary bladder, urethra, and urinary meatus.
The glomerulus is the first step in the filtration of blood to form urine. It is a network of capillaries located within the glomerular capsule (also known as Bowman's capsule). Here, blood undergoes filtration, and the filtrate enters the renal tubule.
From the glomerulus, the filtrate moves into the renal tubule, which consists of several sections, including the, loop of Henle, proximal convoluted tubule and distal convoluted tubule. The renal tubule plays a crucial role in reabsorption and secretion processes, which help in the formation of urine.
After passing through the renal tubule, the urine collects in the renal pelvis, a funnel-shaped structure that acts as a reservoir for urine within the kidney. From the renal pelvis, the urine flows into the ureter, a muscular tube that connects each kidney to the urinary bladder.
The urinary bladder is a storage organ for urine. When it becomes full, it contracts to expel urine through the urethra. The urethra is the final pathway for urine, leading to the outside of the body through the urinary meatus, which is the external opening.
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Explain how to distinguish different species by their DNA.
DNA analysis can be used to distinguish different species by comparing specific regions of their DNA sequences.
To distinguish different species by their DNA, scientists primarily focus on comparing specific regions of the DNA sequences that are highly variable among species. One commonly used region is the mitochondrial DNA (mtDNA), which is inherited maternally and has a higher mutation rate compared to nuclear DNA. Another region is the ribosomal RNA genes (rRNA), which exhibit variations among species.
The process typically involves extracting DNA samples from different organisms, isolating the target region of interest, and sequencing the DNA to determine the nucleotide sequence. The sequences obtained from different species are then compared to identify differences and similarities.
These differences can be used to create DNA profiles or genetic markers specific to each species. Advanced techniques such as DNA barcoding or whole-genome sequencing can provide more comprehensive information and aid in species identification.
By comparing DNA sequences, scientists can uncover genetic variations unique to different species, allowing them to distinguish and classify organisms accurately. This information is valuable in various fields, including taxonomy, conservation biology, forensic science, and evolutionary research.
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How is the HIV infection different from a cold virus
A. HIV replicates itself inside cells
B. HIV diffuses across membranes
C. HIV attacks lymphocytes directly
D. HIV is killed by lipases
The HIV infection is different from a cold virus because HIV attacks lymphocytes directly (Option C).
What is the HIV infection virus?The HIV infection virus is a retrovirus that causes human immunodeficiency virus infection (AIDS). This virus is able to attack cells of the immune system such as lymphocytes directly and cause damage in the immune responses or immunosuppression,
Therefore, with this data, we can see that the HIV infection virus is able to cause the death of cells of the immune system, thereby hampering the immune response and triggering the process of immunosuppression.
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Hard structures of corals and shelled organisms are deteriorating because of
1. increasing ocean pH
2. decreasing ocean pH
3. increasing ocean temperature
4. decreasing ocean temperature
Answer:
The correct answer is - 2. decreasing ocean pH.
Explanation:
Many marine organisms such as corals that have hard calcium carbonate shells or skeletons are deteriorating due to the increase of carbon dioxide levels dissolved in marine water which leads to decreasing pH in seawater.
For example, increasing ocean acidification or decreasing pH level due to increased carbon dioxide has been shown to significantly reduce the ability to maintain their skeleton or hard structure or building again. Due to Co2 dissolving in the water means more hydrogen ions in seawater that leads to the concentration of CO3^2- ions actually decreases.