Answer:
The circulatory stem brings oxygen to the respiratory system, which delivers oxygen to the muscular system.
Explanation: Hope this helps! :)
Based on the observations you made in the activity, how do you think your total cholesterol score would change if you started eating more unsaturated fats than you currently do? what if you started eating significantly less saturated and trans fats than you currently do? what if you did both at the same time?.
Total cholesterol score is a measure of the total amount of cholesterol in the blood. If you started eating more unsaturated fats then the total cholesterol score will increase. Unsaturated fats are unhealthy.
The ranges for total cholesterol score in adults are as follows:
Normal: Less than 200 mg/dL
Borderline high: 200 to 239 mg/dL
High: At or above 240 mg/dL
Merry Christmas!! :D
approximately one week after conception, when differentiation of the cells begins, the zygote is now a group of cells that is more specifically called the
approximately one week after conception, when differentiation of the cells begins, the zygote is now a group of cells that is more specifically called the Blastocyst.
A typically developing embryo will have six to ten cells three days after fertilization. The fertilized egg is recognized as a blastocyst — a rapidly dividing ball of cells — by the fifth or sixth day. The embryo will be formed by the inner group of cells.
A blastocyst is a ball of cells that develops early in a pregnancy, approximately five to six days after a sperm fertilizes an egg. It implants in your uterine wall and develops into an embryo, then a fetus.
Blastocyst embryo transfer has a success rate of 67%, which is significantly higher than cleavage embryo (6-cell to 8-cell stage of the embryo) transfer.
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What does vehicle mean in microbiology?
Vehicle-borne transmission is an indirect transmission process in which the pathogen is transferred from one host to another via inanimate intermediary vehicle objects.
A vehicle can passively transport a pathogen, just as food or water can. Chikungunya fever, Zika virus fever, yellow fever, West Nile fever, Japanese encephalitis (all transmitted by mosquitos), and tick-borne encephalitis are examples of viral diseases transmitted by vectors (transmitted by ticks). Cooking or eating utensils, bedding or clothing, toys, surgical or medical instruments (such as catheters), or dressings are examples of vehicles that can transmit diseases. Water, food, beverages (such as milk), and biological products such as blood, serum, plasma, tissues, or organs can all be used as vehicles.
Contact is the most common mode of transmission of health-care-associated infections and is classified as direct or indirect. Noroviruses, which cause many gastrointestinal infections, are an example of contact-transmitted microorganisms.
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Learning through Art: DNA Structure doute Tento nea uchando Fra le
DOUBLE HELIX is a twisted-ladder shape of DNA, formed by two nucleotide twisted around each other.
PHOSPHATE GROUP This is attached to the 5' carbon of the sugar unit.
One nucleotide of a DNA molecule consists of a phosphate group. There is formation of phosphate backbone it is the portion of the DNA double helix that provides structural support to the molecule.
DEOXYRIBOSE: This is a A five-carbon sugar that is a component of DNA nucleotides.
HYDROGEN BOND: Hydrogen bonds are found between the bases of the strands of nucleotides. Adenine forms hydrogen bonds with thymine whereas guanine forms hydrogen bonds with cytosine.
BASE PAIR: Two nitrogen-containing bases (or nucleotides) that pair together to form the structure of DNA is called base pair.
So these are nucleotides on opposite strands of the DNA double helix.
NUCLEOTIDE: Nucleotide is one of the structural components, or building blocks, of DNA and RNA. It consists of a nitrogenous base (one of four chemicals: adenine, thymine, guanine, and cytosine) a molecule of sugar (deoxyribose or ribose) and a phosphate group.
NITROGENOUS BASE: Nitrogenous base is the carbon ring structure found in DNA or RNA binding of these base pairs forms the structure of DNA that includes adenine, guanine, cytosine, thymine, and uracil.
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How does biology help the environment?
For example, biologists analyze soil, water, and air for chemical pollution as part of the protection, management, and monitoring of the land's current resources. discovering methods to clear up pollutants.
The environment is it studied in biology?A life science is biology. The living environment and the interaction between biological organisms and their surroundings are important topics to discuss when studying biology.
How is science beneficial to the environment?Science has aided in the reduction of pollutants in many regions of the world; new automobiles today are 99% cleaner than they were fifty years ago, for instance. The current global energy demand can be met by renewable resources more than 3,000 times over. We now have cleaner, safer water thanks to new discoveries and technology.
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What are 3 important things about coral reefs?
COVID-19 is a disease-causing severe pneumonia in patients infected by _______________.
A. Yersinia pestis
B. SARS-CoV-1
C. SARS-CoV-2
D. BatCoV RaTG13
A COVID pneumonia is an infection of the lungs brought on by the COVID-19 virus, SARS-CoV-2. Pneumonia can develop as a side effect of having COVID-19. Your lungs become inflamed and swollen as your immune system fights the infection there, making it difficult to breathe.
Almost usually, the COVID-19-related pneumonia affects both lungs simultaneously (bilateral). The interstitial tissue that lines the air sacs, blood veins, and airways in your lung. Scarring or other lung damage is a result of interstitial lung disease. In COVID-19, bilateral interstitial pneumonia refers to pneumonia caused by the virus that results in lung destruction on both sides. This often transpires following the first (infectious) stage, frequently in individuals with protracted COVIDs (post-acute sequelae of SARS CoV-2, or PASC).
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The sum of all physical and chemical changes that take place inside the cells of the human body
Answer:
The sum of all the physical and chemical changes that take place within the cells of the human body is known as metabolism.
How many genes did the human genome project find?
The primary goals of the Human Genome Project (HGP), which lasted from 1990 until 2003, were to determine both the DNA sequence and “the location of the estimated 100,000 human genes.
The Human Genome Project (HGP) was a worldwide scientific research effort that aimed to discover the base pairs that make up human DNA as well as to identify, map, and sequence every gene in the human genome from both a physical and functional perspective.
The project began in 1990 and was finished in 2003. It continues to be the biggest collaborative biological endeavor in the world. Planning began after the US government adopted the concept in 1984, the project was formally begun in 1990, and it was virtually finished on April 14, 2003, but only comprised around 85% of the genome.
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Learning through Art: Human Pedigree Analysis Can you identify the genotypes in this human pedigree for deafness? The human pedigree shown here is for an inherited form of deafness caused by a recessive allele (d). Drag the labels to the pedigree to identify the genotypes of individual family members. If you can't tell with certainty whether an individual is homozygous dominant or heterozygous dominant for the trait, place the label "DD or Dd" in that box.
Learning through Art: Human Pedigree the genotypes in this human pedigree shown here are homologous chromosomes, gene locus, recessive allele, centromere, sister chromatids, alleles, and dominant allele.
One chromosome from the mother and one from the father are often inherited in a pair. Homologous chromosomes, for instance, are two copies of Chromosome 1 in a cell.
Each gene has two copies, one from each parent, and they are each found at a distinct locus (place on a chromosome). However, the copies are not always the same. Gene copies that differ from one another are referred to as alleles.
When a cell divides, the centromere, which has a similarity with a constrictive area of a chromosome, is crucial in assisting DNA division (mitosis and meiosis). To be more precise, it is the area where the cell's spindle fibers are attached.
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What does the farmhouse in Animal Farm represent in the Russian Revolution?
Animal Farm, proverbial at the start and also the finish of the novel because the Manor Farm, symbolizes Russia and also the land beneath political party rule.
However a lot of typically, Animal Farm stands for any human society, be it capitalist, socialist, fascist, or communist. It possesses the interior structure of a nation, with a government , a personnel or army , a labour , and state holidays and rituals. Its location amid variety of hostile neighboring farms supports its symbolism as a political entity with diplomatic considerations.
The barn at Animal Farm, on whose outside walls the pigs paint the Seven Commandments and, later, their revisions, represents the collective memory of a contemporary nation.
The great windmill symbolizes the pigs’ manipulation of the opposite animals for his or her own gain.
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a terminator in mrna synthesis is a(n) __________.
A terminator in mRNA synthesis is an Hlnts stop codon.
What is mRNA synthesis?The nucleus, where mRNA is produced, uses the nucleotide sequence of DNA as a template. When elements that help to maintain nuclear DNA are disturbed, transcription (the creation of mRNA) begins.
"In eukaryotic cells, Hlnts stop codon specific nucleotide sequence in DNA that signals the RNA polymerase to stop specific nucleotide sequence in mRNA that signals the RNA polymerase to stop an enzyme whose specialized purpose is to cease transcription" is a terminator in mRNA synthesis.
Thus, a terminator in mRNA synthesis is an Hlnts stop codon.
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Which nervous system cells respond to injury?
Answer:
Central nerve cells
Explanation:
Central nerve cells undergo a stereotyped regenerative response following physical injury. 2. This reaction involves adaptive changes within the axon and cell body of origin, directed at sprouting and synaptogenesis.
Most enveloped viruses use the host __________ membrane as their envelope source.
A. plasma
B. nuclear
C. mitochondrial
D. none of these
Most of the enveloped viruses use the host plasma membrane as their source for envelope.
Viruses are the acellular structures that are pathogenic in nature. These are called acellular because they do not follow the cell theory. Viruses are non-living outside any living body, but once inside a living body, they gain their potential to divide.
Plasma membrane is the outer layer of the cells that keeps the inner components of the cell separated from the outer environment. It is made up of lipid bilayer along with proteins and cholesterol. The plasma membrane is also involved in regulating the movement of substances across it.
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Bacteriophages and animal viruses do NOT differ significantly in which of the following steps?
A) attachment
B) penetration
C) uncoating
D) biosynthesis
E) release
Bacteriophages and animal viruses do NOT differ significantly in which of the following steps the correct option D) biosynthesis.
Animal viruses and bacteriophages do not considerably differ in the domain of biosynthesis. In an enzyme-catalyzed process, substrates are changed into products in living things. Bacteriophages and animal viruses both have comparable structures, which is why it is typically a multi-step process.Bacteriophages have a cycle called lytic/lysogenic. While the lysogenic cycle results in the integration of the phage into the host genome, the lytic cycle results in the death of the host. While animal viruses enter the host cell through membrane fusion or endocytosis, bacteriophages inject DNA into the host cell.The following are the steps in the lytic cycle of bacteriophages:
Phage attachment is the first step in the process of entering a bacterial cell as are bacterial cell entry, phage replication, and phage birth.To know more about Bacteriophages
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Label the olfactory receptors and pathways Olfactory epithelium Lamina propria Olfactory receptor cells Olfactory glomerulus Cribriform plate Reset Zoom
Synapses are formed between the terminals of the olfactory nerve and the dendrites of mitral, periglomerular, and tufted cells in the glomerulus, which is a spherical structure found in the olfactory bulb of the brain.
This structure is referred to as the glomerulus. Each glomerulus is encompassed by a diverse population of juxtaglomerular neurons and glial cells on all sides. These juxtaglomerular neurons include periglomerular, short axon, and external tufted cells. Glial cells are also present. Near the surface of the olfactory bulb is where you'll find each and every glomerulus. A component of the anterior olfactory nucleus is also contained within the olfactory bulb. The cells contained within this portion of the nucleus contribute fibers to the olfactory tract. They are the first synaptic sites that are involved in the processing of odor information that is received from the nose. A glomerulus is composed of a globular tangle of axons that originate from the olfactory receptor neurons and dendrites that originate from the mitral and tufted cells. Additionally, a glomerulus is surrounded by cells that include external tufted cells, periglomerular cells, short axon cells, and astrocytes. All of these cells contribute to the formation of the glomerulus.
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usually, a river ________ at its source compared to farther downstream.
There can be many answers for these king of question for eg:- Its wider
An electric power plant manages to transfer 76% of the heat produced in the burning of fossil fuels to steam. Of the heat carried by the steam, 45 % is converted to mechanical work of the spinning turbine. Which best describes the overall efficiency of the heat-to-work conversion of the plant?.
If the heat is carried by the steam, 45 % is converted to mechanical work of the spinning turbine. the overall efficiency of the heat-to-work conversion of the plant is less than 45% efficient.
The degree to which heat is actually converted into mechanical work is referred to as the efficiency of the conversion.
76% of the problem's heat was turned into steam.
Consider the amount of heat produced by the fossil fuel as "x."
which means out of x, 76x/100 became heat, indicating that 0.76x is steam.
The question also says that 45 percent of the steam was used for mechanical work. which entails;
45/100 × 0.76x was converted to work,
which is equal to 0.342x
that is 34.2% of x.
Therefore the overall efficiency of the heat-to-work conversion of the plant is 45%
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(complete question)
An electric power plant manages to transfer 76% of the heat produced in the burning of fossil fuels to steam. Of the heat carried by the steam, 45 % is converted to mechanical work of the spinning turbine. Which best describes the overall efficiency of the heat-to-work conversion of the plant?
greater than 76% efficient
76% efficient
45% efficient
less than 45% efficient
List the significant events of the light-independent reaction (Calvin Cycle). Include which reactants and products are involved. Highlight what will be released as a product. Be sure to include where the process occurs in the chloroplast.
Explanation:
there are two stages of Photosynthesis:
the light dependent stage: In this stage light energy is trapped using chlorophyll from the chloroplast. this light energy is used to separate water molecules(H2O) that were absorbed by the roots into Hydrogen and oxygen. the oxygen produced from this separation is then let off as a waste product.the light independent stage: the Hydrogen produced from the previous stage bonds with Carbon Dioxide(CO2) that diffused through the stomata from the atmosphere in order to form the plants food, which is in the form of glucose(C6H12O6)light dependent equation:
2H2O + (trapped light energy) --> 2H2 + O2
light independent equation:
6CO2 + 6H2O --> C6H12O6 + 6O2
What enzyme is broken down in the stomach?
Amylase (produced in the tongue and pancreas; breaks down complex carbs) (made in the mouth and pancreas; breaks down complex carbohydrates).
Lipase (produced in the pancreas; breaks down fats) (made in the pancreas; breaks down fats) Protease (produced in the pancreas; breaks down proteins) (made in the pancreas; breaks down proteins).
The six stages of digestion include ingestion, propulsion, mechanical digestion, chemical digestion, absorption, and feces.
The stomach lining's glands produce digestive enzymes and stomach acid. Your stomach's muscles mix the meal with these digestive liquids. Pancreas. An enzyme-rich digestive fluid that is produced by your pancreas can break down proteins, lipids, and carbohydrates.
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What are 5 things all cells have in common?
Answer:
a cell membrane (also known as the plasma membrane)
cytoplasm.
ribosomes.
DNA (genetic information)
Explanation:
the classic gate-control theory suggests that pain is experienced when small nerve fibers activate and open a neural gate in the
The classic gate-control theory suggests that pain is experienced when small nerve fibers activate and open a neural gate in the spinal cord.
A mechanism in the spinal cord known as the "Gate Control Theory of Pain" allows pain signals to either be sent to the brain to be processed to intensify the potential for perceived pain or to reduce it in the spinal cord itself.
The "gate" is the mechanism that controls whether pain signals can pass through or not. The gate can either be "open" or "closed," either of which can occur:
Pain signals can pass through the gate if it is open, and they will be sent to the brain to make the pain feel real.
The perception of pain will be lost if the gate is closed, as pain signals will be prevented from reaching the brain.
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What is the name of the process that converts mRNA → amino acid?
Translation is the name of the process that converts mRNA → amino acid.
Translation is the process by which ribosomes in the cytoplasm or endoplasmic reticulum make proteins after the process of converting DNA to RNA in the cell's nucleus, as defined by molecular biology and genetics. Gene expression refers to the entire process.
The process of translating mRNA into the chain of amino acids that makes up the produced protein occurs on ribosomes in the cytoplasm of the cell. The ribosome is a complex molecule made up of numerous ribosomal RNA molecules, numerous proteins, and both tiny and big subunits. Initiation, elongation, and termination are the three phases of an mRNA molecule's translation by the ribosome.
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for which organic compounds must information be encoded in dna for green plants to synthesize the other three compounds? select one: a. starches b. proteins c. fats d. sugars
Organic compounds are the building blocks of life and are essential for living organisms. They provide the necessary energy, structure, and functions for life to exist. In green plants, four main organic compounds must be encoded in DNA for the plants to synthesize the other three compounds. These four compounds are starches, proteins, fats, and sugars.
Starch is a polysaccharide composed of glucose molecules and is the main energy source for green plants. Proteins are complex molecules made up of amino acids. They are essential in the structure and function of cells and are responsible for many of the plants’ metabolic functions. Fats are made up of glycerol and fatty acid molecules and are an important source of energy for plants. They are also important in providing structure to the plants’ cells.
Sugars are simple carbohydrates composed of glucose molecules. They are a primary source of energy for green plants and provide the necessary sugars needed for photosynthesis. The information for synthesizing sugars must be encoded in the plants’ DNA in order to create the necessary enzymes and proteins needed in the chemical reaction.
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3. In the diagram of a cell below, the structure
labeled X enables the cell to
2
(1) release energy
(3) control cell activities
(2) store waste products (4) manufacture proteins
4 If the ribosomes of a cell were destroved whatsoever
Answer:
Explanation:
In the diagram you provided, the structure labeled X is the endoplasmic reticulum (ER). The endoplasmic reticulum is a network of flattened sacs and tubes that is found within the cytoplasm of eukaryotic cells (cells that have a nucleus and membrane-bound organelles).
There are two main types of endoplasmic reticulum: the rough endoplasmic reticulum (RER) and the smooth endoplasmic reticulum (SER). The rough endoplasmic reticulum is studded with ribosomes, which are small organelles that synthesize proteins. The smooth endoplasmic reticulum, on the other hand, does not have ribosomes attached to it.
The endoplasmic reticulum plays several important roles in the cell, including:
1. Release of energy: The endoplasmic reticulum is involved in the synthesis of lipids and the breakdown of carbohydrates, which releases energy that can be used by the cell.
2. Control of cell activities: The endoplasmic reticulum helps to regulate the synthesis and transport of proteins and lipids within the cell.
3. Storage of waste products: The smooth endoplasmic reticulum is involved in the synthesis and detoxification of certain substances, such as drugs and hormones.
4. Manufacture of proteins: As mentioned, the rough endoplasmic reticulum is involved in the synthesis of proteins. Proteins are synthesized on the ribosomes attached to the RER and are then transported into the lumen (cavity) of the RER for further processing and modification.
If the ribosomes of a cell were destroyed, the cell would no longer be able to synthesize proteins, which would severely impact its function and survival.
What are epigenetics in simple terms?
Bloodtype phenotype Genotype
A+
B+
A-
B-
AB+
O+
O-
Answer:
The genotype must be AB. Someone with blood type O has neither the A nor the B allele.
Explanation:
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What does 5 and 3 mean in DNA and mRNA?
In DNA and mRNA, 5 and 3 means to the total number of carbon snippet in a deoxyribose sugar reinforcement to which a phosphate group does make a bond.
DNA is the information reinforcement. It stores the orders for making other big molecules, which are called as the proteins. These orders are stocked in the cells, and than distributed among the various chromosomes which are made up of thousands of small paths of DNA, called genes.
Deoxyribose is the five- carbon sugar reinforcement that helps to form the phosphate backbone of the molecules of DNA. DNA, or deoxyribonucleic acid is a polymer whixch is formed of many nucleic acids. Each of the nucleic acid is composed of a deoxyribose patch bound to both a phosphate group.
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1 Which of the following is not a characteristic of water Water is composed of polar molecules Water is organic compound Water stabilizes temperature because it has a high specific heat Water has a ph of 7.0 because it is neither an acid or a base 2 Identify which of the following question is accurate Water molecules have no polarity therefore they are hydrophobic Water molecules exhibit polarity. Therefore substances attracted to water are hydrophilic The electrons in a water molecule spend most of their time around the hydrogen atom Water molecules can be polar or nonpolar; it depends on how the electron configure themselves 3 At a pH of 4 identify which of the following questions is accurate There are more hydrogen ions than hydroxide ions; the solution is basic The solution is neutral; neither basic or acidic The solution has more hydrogen ions than hydroxide ions; the solution is acidic 4 A RBC has a solute concentration of 530 miliequ, while a check cell is seen to have a solute concentration of 210 millieq. Which is an accurate representation of this phenomena? the rbc is hypertonic to the cheek cell; water will flow into the RBCcTrue the rbc is hypertonic to the cheek cell; water will flow out of the RBC the cheek cellis hypertonic to the RBC; water will not move in either direction
The right answer is (3) An ionic bond holds it together. (3) An ionic bond holds it together. Option 3 is not a water characteristic since the bonds that hold water together are covalent bonds.
Water's four distinguishing characteristics are its high specific heat, high polarity, adhesion cohesiveness, and decreased solid density. Because of the unequal distribution of electrons among the atoms and the asymmetrical form of the molecule, a water molecule has two poles: a positive charge on the hydrogen pole (side) and a negative charge on the oxygen pole (side) (side). Option 3 is not a water characteristic since the bonds that hold water together are covalent bonds.
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which of the following is characteristic of cardiac muscle? cardiac muscle cells achieve tetany with every contraction. cardiac muscle cells are striated. neurons that innervate cardiac muscle tissue are under voluntary control. cardiac muscle fibers are faster than skeletal muscles. cardiac muscle fibers are multinucleated.
Compared to skeletal muscle fibers, the characteristics of cardiac muscle cell membranes are different. Therefore, cardiac muscle cannot develop tetanus (sustained contraction).
What quality of heart muscle prevents tetany from happening?Tetany is not present because summation cannot take place in heart muscle due to a long refractory period that lasts until relaxation is well advanced.
Has tetanic contraction been observed in heart muscle?Compared to skeletal muscle fibers, the characteristics of cardiac muscle cell membranes are different. Therefore, cardiac muscle cannot develop tetanus (sustained contraction). This characteristic is crucial since a heart in tetany would not be able to pump blood.
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