The byproducts of burning hydrocarbons include water and carbon dioxide. Numerous hydrocarbons are used as fuel because they burn with a lot of heat energy emitted.
Gas grills frequently use gaseous hydrocarbon propane (C3H8) as their fuel source. Through the burning of the fuel, fossil fuels may be converted into energy. Even though fossil fuels include impurities, the main method of burning them is hydrocarbon combustion.
Less negative effects on the environment and financial rewards are the two key benefits of hydrocarbon refrigerants. In the end, hydrocarbon delivers more effective cooling than substitute HFC refrigerants, and Minus40 is pushing the industry into a new era of sufficiency.
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24. According to the Punnett square above, what percent of offspring will have a tall phenotype?
Answer:
75 percent
Explanation:
There is only one square with the recessive phenotype tt. This means the rest of the 4 combinations will have the tall phenotype. 4-1 = 3 3/4 = 75 percent.
Answer:
75%
Explanation:
I say 75% because both pea plants have one dominant and one Recessive so by the picture it shows 3/4 having a domminant letter (Big T) and 3/4 in percentage is 75%
please let me know if this is right
anthro which are the most distinctive traits demonstrating the adaptation of neanderthals to cold conditions? group of answer choices their body shape and the length of their arms and legs the retromolar space and heavy wear on their teeth their thick bones with evidence of strong muscles their vertical foreheads and globular shape of the skulls anthro
The most distinctive trait demonstrating the adaptation of Neanderthals to cold conditions is their body shape and the length of their arms and legs.
Thus, the correct answer is A.
Neаnderthаls аre а hominin species thаt existed for аt leаst 200,000 yeаrs throughout Europe аnd western Аsiа, аnd disаppeаred аbout 27,000 yeаrs аgo. During this time, they witnessed some of the coldest climаtic conditions ever known in these regions. Mаny of their physicаl feаtures suggest thаt they were аdаpted for the cold, such аs their bаrrel-shаped chests, shorter limbs, аnd lаrger brаins, аll of which suggest а body shаpe аdаpted for retаining heаt.
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which of these animal taxa has the highest proportion of species threatened with extinction?
The only groups to contain a higher proportion of threatened species are cycads (63% threatened species 5), amphibians (41% 5, 11), corals (33% 5, 21) and conifers (34% 5). Therefore, three of the five most threatened groups assessed to date are plants. By comparison, 25% of mammal species 5, 12 and 13% of bird species are threatened 5.
With genetic maternal effect, the phenotype of an individual is determined by which of the statements?
Maternal effect genes have an impact on the embryo's fundamental structure even before the egg has been fertilized.
Explain about the genetic maternal effect?The phenotypes that correspond to a person's genotype are not always present. In contrast to female progeny, male kids display genotypes similar to their fathers. Progeny exhibit the phenotypes that correspond to their own genes.
Maternal effects are phenotypes that an organism displays, regardless of its own genotype, that are predicted by the mother's genotype. The mother usually gives the egg messenger RNA or proteins, which explains why this happens frequently.
Maternal-effect genes have been discovered by testing whether the mother has a mutant gene that stops her from being able to save her embryo when the father contributes a wild-type gene.
The complete question is,
With genetic maternal effect, the phenotype of an individual is determined by which of the statements ? a. the sex of the individual with only one sex able to express the genotype b. the sex of the parent who transmits the gene to the individual c. a combination of environmental factors and the genotype of the individual d. cytoplasmic genes usually located in the mitochondria e. the nuclear genotype of the maternal parent
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Without buying points, a monthly mortgage payment will be $1,250. buying 1 point at closing would reduce the payment to $1,236. to the nearest year, how long would it take to break even by buying 1 point, with a $100,000 mortgage?
a. 5 years
b. 6 years
c. 7 years
d. 8 years
please select the best answer from the choices provided a b c d
It would take b. 6 years to break even by buying 1 point, with a $100,000.
The point at which total expenses and revenues are equal, or "even," is known as the break-even point. Even though opportunity costs have been paid and capital has received the risk-adjusted, expected return, there is no net loss or gain and one has "broken even."
how to figure out what break even is.
The information indicates that the mortgage payment will be $1,250 per month. The closing cost would be $1,236 if one point were bought.
The time taken will be:
Monthly savings = 4250/1236 = 14
Time taken = 7
1000/14 = 71.4 months= 6 years
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consider a dihybrid cross (aabb x aabb). how many offspring would be predicted to be heterozygous for both traits?
It would be expected that 1 in 4 offspring will be heterozygous for both features.
Based on the gametes of the parents, the checkerboard method is used to identify the potential children from a specific cross. To be able to comprehend all the possibilities kids can be generated, the parents precisely produce the gametes that are placed in a checkerboard pattern. The checkerboard approach can be used to calculate the likelihood of each potential offspring.
The dihybrid parents' homozygous gametes separate. When these gametes combine, the heterozygous progeny is created.
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how does the metabolism occurring in chloroplasts differ from that of mitochondria?
Metabolism occurring in chloroplasts differ from that of mitochondria, because of different electron acceptors and sources.
Mitochondria and chloroplasts are plant cell organelles. However, chloroplasts are absent in animal cells, whereas mitochondria are found in both.
Mitochondria generate cellular energy in the form of ATP from oxygen and nutrients. Chloroplasts are the place where photosynthesis occurs in plant cells.
Mitochondria are responsible for producing most of the useful energy from the breakdown of lipids and carbohydrates, while chloroplasts use the energy captured from sunlight to produce ATP and convert CO into carbohydrates. Using the reducing power needed to decompose and synthesize CO₂ and H₂O.
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muscular dystrophy (md) is a group of disorders that involve muscle weakness and loss of muscle tissue. duchenne muscular dystrophy (dmd) is a rapidly-worsening form of md. dmd is caused by a defect in the dystrophin gene. the dystrophin protein is a vital part of a protein complex involved in muscle support and structure. dmd is much more common in boys than in girls ( about 1/3500 boys have dmd, girls rarely have dmd). which statements about dmd are accurate? check all that apply.
Summary. An umbrella term for more than 30 hereditary disorders, muscular dystrophy (MD) is. They all contribute to muscular wasting and weakness. Some MD variants develop throughout childhood or adolescence. Others might not show up until their middle years or later.
How is muscular dystrophy contracted?
Muscular dystrophy (MD) typically runs in families. It typically manifests after receiving a defective gene from either one or both parents. MD is brought on by changes (mutations) in the genes in charge of normal muscle structure and function.
Can muscular dystrophy be cured?
Muscular dystrophy (MD) does not yet have a known cure, however a number of treatments can assist manage the condition. The treatment you receive will be personalized for you because different types of MD might lead to rather particular difficulties.
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i need help with this
Answer: house?
Explanation:
what term is used to describe a period characterized by very high rates of speciation?
Adaptive radiation is the phrase used to indicate a time when the rate of speciation was extremely high.
A fast growth in the number of species sharing a common ancestor that is marked by high ecological and morphological variety is known as adaptive radiation.
It is fueled by organisms' capacity for ecological adaptation. Adaptive radiation may not necessarily be significant at the scale of the species, but may be significant at a higher taxonomic level, according to Simpson.
Adaptive radiation is the cause of the Galapagos finch variety that was previously explored. It may even be said that their instance is the most well-known and typical adaptive radiation case ever investigated.
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true or false: the great diversity in the types of antibodies an individual can produce is largely due to each b cell of that individual being able to express antibodies that can bind to a variety of antigenic epitopes.
The answers is False ; In response to pathogens such as bacteria and viruses, our systems produce a diverse range of that may bind to particular antigens.
This is referred to as an antibody's "diversity." The combination of variable regions of H chains and L chains results in antibody diversity.
V(D)J recombination, which involves the shuffling and joining of variable, diversity, joining, and constant region (abbreviated V, D, J, and C, respectively) gene segments, is primarily responsible for variation among B and T cell receptors.
An individual antibody molecule, on the other hand, always has identical light chains and identical heavy chains: an IgG molecule, for example, may have either or light chains, but not both.
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how would you attempt to measure a reaction that is completed within one picosecond? (for example the light-induced electron transfer reaction in the first step of photosynthesis?
A reaction is said to be "finished" when it reaches equilibrium, or when the concentrations of the reactants and products stop changing. By counting the amount of product produced over a predetermined amount of time, one can determine the reaction's pace.
A solid product's mass is frequently expressed in grams, but a gaseous product's volume is typically expressed in cm3. The duration selected might be influenced by the reaction's rate. Tests that measure reaction times (RTs) are regarded as quick and accurate ways to identify variations in cognitive performance. RT tests track how long passes between a stimulus and a subject's reaction to it.
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a specialized plasmid vector that has an e.coli promoter upstream of a restriction site into which foreign genes can be inserted is known as a:_____.
A specialized plasmid vector that has an e.coli promoter upstream of a restriction site into which foreign genes can be inserted is known as a expression vector.
What kind of gene transfer is employed by E. coli?Recombination through horizontal gene transfer (HGT) has been identified as a crucial element in the long-term evolution of the E. coli genome, however it is still unclear how much HGT causes sequence divergence in comparison to mutations (6).Place DNA (more...) An suitable restriction site in the plasmid vector is ligated to a segment of the insert DNA, which is then utilized to convert E. coli with the recombinant molecule. They choose colonies with plasmid DNA that are antibiotic-resistant. A fundamental molecular biology approach is the heat shock method of transforming plasmid DNA into E. coli. It involves putting an alien plasmid or ligation product inside of bacteria.To learn more about E. coli genome refer to:
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7.The graph below compares the worldwide population of humans with the number of animal species now extinct.
What is an inference that can be made about the relationship between human population and animal extinctions based on this graph?
Responses
In 1860, less than 10,000 species had gone extinct.
, , In 1860, less than 10,000 species had gone extinct. ,
Human population size increased from 1800 to 2010.
, , Human population size increased from 1800 to 2010. ,
The number of animal extinctions decreased as the population of humans grew.
, , The number of animal extinctions decreased as the population of humans grew. ,
When humans move into new areas, they change the environment, causing animals to go extinct.
Less than 10,000 species had disappeared by 1860.
What is graph?
A graph is a mathematical structure used to represent relationships between objects and their relationships. It consists of nodes, which represent the objects, and edges, which represent the relationships between those objects. Graphs can be used to represent a wide variety of data, from social networks to the physical world. Graphs can also be used to analyze complex data, to find patterns and to predict future outcomes. Graphs can be used to model and solve problems in a variety of fields, such as computer science, business, engineering, and biology.
Less than 10,000 species were extinct in 1860.
Between 1800 and 2010, there were more people on the planet.
Between 1800 and 2010, there was a growth in the human population.
As the human population increased, fewer animals went extinct.
As the human population increased, fewer animals were wiped out.
Animal species become extinct as a result of environmental changes brought about by human settlement in new places.
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Archaeologists discovered a new set of mummies in egypt with what unique feature?
Numerous mummies were discovered during the excavations, some of which had a golden tongue or amulet inserted into the mouth of the corpse. This custom was designed to ensure that the deceased could speak in front of the court of the Ancient Egyptian god Osiris and converse in the hereafter.
What did researchers find in Egypt?
4,300-Foot Tunnel Under Ancient Egyptian Temple Found by Archaeologists At Taposiris Magna, a temple to the deity of death Osiris, archaeologists in Egypt found an underground tunnel.
What recent archaeological find took place in Egypt?
The pyramid of an unidentified ancient Egyptian queen has been discovered in Egypt, together with a trove of coffins, mummies, antiques, and a network of connected tunnels. It was located next to King Tut's tomb in the historic necropolis Saqqara in Giza, which is only 20 miles south of Cairo.
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Drooping of the upper eyelid, and double vision are potential symptoms of damage to the ______ nerve.
Select one:
a. oculomotor
b. trigeminal
c. optic
d. trochlear
e. abducens
Damage to a oculomotor nerve may manifest as double vision and drooping of a upper eyelid.
What in the name of god is speed within physics, and how is it measured?The rate at which a location shifts over time is what constitutes speed. It has a time-based dimension of distance. The Vernier scaling of speed is comprised of the basic units of time and distance. Meters per second (m/s) is the unit of velocity in the metric system.
The definition of speedWhat is speed, exactly? the rate of a directionally changing object's location. The ratio of the length to the time it has taken to travel a distance is known as speed. Speed is in fact a scalar number, having only a direction and no magnitude.
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why are proteins treated with ionic detergent (sds), reducing agents (dtt), and heat before sds-page?
These processes get the protein samples ready for effective gel migration. Large biomolecules and macromolecules known as proteins are made up of one or more extended chains of amino acid residues.
Large biomolecules and macromolecules known as proteins are made up of one or more extended chains of amino acid residues. Among the many tasks that proteins carry out in living things include catalyzing metabolic processes, replicating DNA, reacting to stimuli, giving cells and organisms structure, and moving molecules from one place to another. The primary way that proteins differ from one another is in the order of their amino acids, which is determined by the nucleotide sequence of their genes and typically causes a protein to fold into a certain 3D structure that controls its activity. A polypeptide is an ordered sequence of amino acid residues. At least one lengthy polypeptide is present in every protein. Less than 20–30 residue polypeptides are frequently referred to as peptides and are rarely thought of as proteins. Peptide bonds and nearby amino acid residues hold the individual amino acid residues together. The sequence of a gene, which is encoded in the genetic code, determines the arrangement of amino acid residues in a protein.
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reactive oxygen intermediates and reactive nitrogen intermediates produced by phagocytic cells are effective in killing invading microorganisms.a) trueb) false
True. Reactive oxygen intermediates and reactive nitrogen intermediates produced by phagocytic cells effectively kill invading microorganisms.
The innate immune system is the first line of defense against pathogens and is characterized by a rapid but non-specific response. One of the important mechanisms of this system is the production of reactive oxygen and nitrogen species, which are widely distributed in biological systems, including phagocytes and secretions.
Reactive oxygen and nitrogen species are short-lived media that are biochemically synthesized by various enzymatic reactions in aerobic organisms and regulated by antioxidants. Physiological levels of reactive species play an important role in cell signaling and proliferation.
Reactive Oxygen and Nitrogen Species (RONS) are a group of highly reactive radical and non-radical chemicals that contain oxygen and nitrogen. They appear as by-products or main products of metabolism. At the cellular level, mitochondria produce reactive oxygen species (ROS) as by-products of metabolism.
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deep homology of homeotic genes is also seen in plants. for example, the mads-box genes have been used to work out phylogenetic relationships within flowering species of plants. what was also documented in these studies across many plant lineages?
The MADS-box homeotic genes are also instrumental in nonflowering plant species, where they are involved in developmental pathways in leaf and root systems.
The development of anatomical traits in a range of animals, such as echinoderms, insects, mammals, and plants, is governed by homeotic genes. Homeotic genes typically express transcriptional factor proteins, which have an impact on development by regulating downstream gene networks involved in body patterning. Displaced body parts result from errors in the homeotic genes, such as antennae growing on the fly's back instead of its head. Mutations with ectopic structure-growing are frequently deadly. There are several different subgroups that make up the homeotic gene set. They contain a number of segmentation-related Hox and ParaHox genes. Hox genes are present in all bilateral animals, including Drosophila (where they were first discovered) and humans.
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the hypothalamus secretes two types of neurohormones called hormones and hormones.
The hypothalamus is an important part of the brain that is responsible for controlling and coordinating many of the body's physiological processes. It secretes two types of neurohormones, releasing hormones and inhibiting hormones, which play a key role in regulating hormone production and other bodily functions.
The Role of Neurohormones in Regulating Physiological Processes: The Hypothalamus1. Releasing hormones: These hormones are secreted from the hypothalamus and travel to the anterior pituitary gland, where they stimulate the release of other hormones. Examples of releasing hormones include:
Growth hormone-releasing hormone (GHRH)Corticotropin-releasing hormone (CRH)Thyrotropin-releasing hormone (TRH)2. Inhibiting hormones: These hormones are secreted from the hypothalamus and travel to the anterior pituitary gland, where they inhibit the release of other hormones. Examples of inhibiting hormones include:
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the step in photosynthesis and cellular respiration when energy-carrying molecules are formed
Glycolysis is the step in photosynthesis and cellular respiration when energy-carrying molecules are formed.
What is cellular respiration?
Cellular respiration is the method by which biological fuels are converted into a form that can be oxidized in the presence of an inorganic electron acceptor, such as oxygen, to generate a significant quantity of energy and power the major generation of ATP.
The Krebs cycle, respiratory electron transport, and glycolysis are the three stages of cellular respiration.
What happens during cellular respiration?
Through cellular respiration, organisms mix oxygen with food molecules, directing the chemical energy contained in these substances toward life-sustaining processes while excreting carbon dioxide and water as waste.
Why does cellular respiration occur in plants?
All plant tissues must breathe in order to grow and remain healthy. Additionally, respiration is crucial for the global carbon cycle and the carbon balance of individual cells, entire plants, and ecosystems.
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the epithelial lining of the small and large intestines are exposed to a harsh environment and undergo continuous cell loss. in which region do stem cells reside
In the crypt of the small intestine stem cells reside which helps when the epithelial lining of the small intestine is exposed to a harsh environment and undergoes continuous cell loss.
The main job of the small intestine is to break down food. However, in addition to creating a number of substances that send signals to various parts of the body, the gut plays a critical role in battling pathogens and preserving the body's water balance. The small intestine's epithelial cells aid in nutrition absorption and digestion. In a similar manner, the epithelial cells secrete a significant quantity of digesting enzymes.
The rough endoplasmic reticulum produces digestive enzymes, which are proteins that are then sorted in the Golgi apparatus and packed into the vesicles. Bicarbonate and other digestive enzymes secreted by the small intestine aid in the breakdown and absorption of nutrients.
The complete question is:
The epithelial lining of the small intestine is exposed to a harsh environment and undergoes continuous cell loss. In which region of the small intestine do stem cells reside?
A. The villus
B. The mesenchyme
C. The goblet
D. The crypt
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The small intestine has extensions of what cell part, which helps it absorb more nutrients?.
The small intestine has extensions of the plasma membrane, which helps it absorb more nutrients.
Three sections make up the small intestine: the jejunum, ileum, and duodenum. It aids in the continued digestion of stomach-derived food. In order for the body to utilize the nutrients (vitamins, minerals, carbohydrates, fats, proteins, and water) in food, it absorbs them. The digestive system includes the small intestine.
The mucosal lining of the small intestine is highly specialized for maximizing nutrient digestion and absorption. The lining is extremely folded to form tiny, finger-like projections known as villi. These villi are extensions of the plasma membrane and increase the surface area which aid in absorption.
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which scenarios correctly describe how a specific gametic mutation might alter the sex ratio in the offspring of a childhood cancer survivor?
The X chromosome scenarios accurately describe how a particular gametic mutation might change the sex ratio in the offspring of a childhood cancer survivor.
A decrease in the frequency of male births can indicate that a recessive lethal gametic mutation has been introduced into the maternal X chromosome.
The two main cell types seen in eukaryotic species are germ and somatic. Both types of cells can experience mutations. A mutation is referred to as a germinal mutation if it occurs in a germ cell. Because gametes develop from germ cells, some gametes will carry the mutation, and when the person successfully mates, they will pass it on to the following generation. Germinal mutations are typically not expressed in the person carrying the mutation. . It would only become apparent if it had a negative (or positive) impact on gamete production. All non-germline tissues are derived from somatic cells. Somatic mutations are changes that occur in somatic cells. The mutations are not sexually transmitted to the following generation because they do not develop in gametes-producing cells.
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you are working at a hominin fossil site in east africa when you come across a skull. you note that the brain size is small compared to modern humans, but the canines are nonhoning. additionally, the face seems very flat. to which species does this skull most likely belong?
The skull is most likely to belong to the species of Australopithecus africanus and Australopithecus robustus.
The first was a predecessor of the homo sapiens, the second shared its time on earth with early humans. Among the inscribed locations is the Taung Skull site, where in 1924 the first example of the Australopithecus africanus was discovered.
The oldest fossils date to 3.5 million years ago. The oldest stone tools have been discovered here too, and the oldest evidence of controlled use of fire. Hundreds of specimens of hominids and early humans have been found, these high numbers contribute to the value of these sites.
According to the given conditions, it was noticed that the brain size is small compared to other humans. Also, according to the information hominids were the first ancestors to human and as the evolution took place it increased.
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What’s the function of cartilage in the gas exchange system?
Answer:
Cartilage plays a crucial role in the gas exchange system by supporting and protecting the delicate structures of the respiratory system. In particular, cartilage helps to maintain the shape of the trachea (windpipe) and bronchi (airways), which allows air to flow freely through the respiratory system.
Cartilage is a tough, flexible tissue that is composed of cells called chondrocytes, as well as a strong, fibrous extracellular matrix. The cartilage in the respiratory system is mostly made up of elastic cartilage, which is highly resilient and can withstand the forces of breathing.
The cartilage in the respiratory system also helps to prevent the airways from collapsing or becoming blocked, which would impede the flow of air. For example, the cartilage rings that surround the trachea provide structural support and keep the trachea open, allowing air to pass through easily.
In summary, the function of cartilage in the gas exchange system is to support and protect the structures of the respiratory system, allowing air to flow freely through the airways and facilitating gas exchange in the lungs.
Can humans ever directly see a photon?
Answer:
Yes. In fact, photons are the only things that humans can directly see. A photon is a bit of light. Human eyes are specifically designed to detect light.
Rats colonize an archipelago in the Pacific Ocean where no rats previously existed. The rats can have white fur, gray fur, or black fur. Predict what type of selection is likely to occur when each of the following phenotypes have the greatest fitness.- grey fur- dark fur- dark fur in fields and light fur in forests- light fur- dark fur on one island, light fur on another
- dark fur
- light fur
Stabilizing selection:- grey fur
Diversifying selection:- dark fur in fields and light fur in forests
- dark fur on one island, light fur on another
Natural selection is the differential survival and reproduction of individuals as a result of phenotypic differences. The change in the heritable traits characteristic of a population over generations is a key mechanism of evolution. Natural selection was popularized by Charles Darwin, who contrasted it with artificial selection, which, in his opinion, is intentional, whereas natural selection is not.
Variation exists within all organism populations. This occurs in part because random mutations occur in an individual organism's genome, and their offspring can inherit such mutations. Individuals' genomes interact with their environments to cause trait variations throughout their lives. A genome's environment includes molecular biology in the cell, other cells, other individuals, populations, species, and the abiotic environment. The population evolves because individuals with certain variants of the trait tend to survive and reproduce more than individuals with other less successful variants. Sexual selection (now frequently included in natural selection) and fecundity selection are two other factors influencing reproductive success.
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write a comment for this do you agree or disagree and tell me why I think heart disease is so prevalent in the United States because theres a lot of smoking that everyone does out here.Heart disease is the leading cause of death among both men and women in the United States.Also if people will stop smoking or keep there body healthy in United States a lot of people wouldn't be having to worry about heart disease.Heart disease is very important because a lot of things can cause it and people should stop smoking in United States.
Heart disease could be prevalent in the United States but not because people do smoke alot, because there are other factors that can as well result to heart disease apart from smoking.
What are the Cuases of Heart disease?A buildup of fatty plaques in the arteries can be described as one of the common cause of coronary artery disease and this can be regarded as the atherosclerosis, however some of the risk factors that can be attributed to this is the poor diet, lack of exercise as well as obesity and smoking.
It should be noted that the Healthy lifestyle choices can contribute to the decrease in the risk of atherosclerosis however leading risk factors for heart disease can as well be attributed to the high blood pressure as well as the high low-density lipoprotein but one of the common of this is the , smoking as well as unhealthy diet, and physical inactivity.
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All organisms are composed of
A. diatoms
B. cellulose
C. cells
D. none of the above