Most lipids are nonpolar. This property causes lipids to be water-insoluble in the bloodstream. Lipoproteins form water-soluble complexes for transport through the bloodstream by surrounding nonpolar lipids with polar phospholipids and proteins .
A central hydrophobic core of non-polar lipids, predominantly cholesterol esters and triglycerides, makes up the complex particles known as lipoproteins. Since lipids like cholesterol and triglycerides are not soluble in water, they must be carried in the bloodstream along with proteins called lipoproteins.
These lipoproteins are essential for the small intestine to absorb and transport dietary lipids, for lipids to travel from the liver to peripheral tissues, and for lipids to travel from peripheral tissues to the liver and intestine.
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Given the parents aabbcc × aabbcc, assume simple dominance for each trait and independent assortment. What proportion of the progeny will be expected to phenotypically resemble the first parent?.
Answer:
sorry i don't know this answer of this question
You have a vial that contains 1000 bacteria. after boiling for 3 minutes, there are only 500 living bacteria remaining in the sample. what is the decimal reduction time for boiling this organism?
The decimal reduction time for boiling this organism is 5.4 minutes.
The number of minutes exposure to a specified temperature required to reduce viable bacteria by 90% is known as the D-value (decimal reduction time). Thirdly, the concept of decimal reduction time (DRT or D value) is connected to bacterial heat resistance. DRT is the amount of time, in minutes, That it takes for 90% of a population of bacteria to be destroyed at a particular temperature.In terms of usefulness, this measurement is crucial for determining how well bacteria are inactivated by heat under various settings, particularly when preparing and preserving food.Total bacteria = 1000
500 bacteria die in 3 minutes
1000 bacteria will die in 6 minutes
90% of 1000 = 900
900 bacteria will die in = 900 X 3/500
= 27/5
= 5.4 minutes
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Which response would the nruse provide to the mother questionining why her teenage daughter was foolish and became pregnant?
"Although teenagers can intellectually discuss birth control, they don't believe that they will become pregnant."
Teenagers are capable of cognitively understanding the risk of unprotected sex but often believe themselves invulnerable, which leads to risk-taking behaviours.
Sexual activity may be impulsive, which is not conducive to a discussion; also, adolescents who are developing their sense of sexuality may feel too insecure to raise this discussion.
Birth control, also known as contraception, anticonception, and fertility control, is a method or device used to prevent pregnancy. Birth control has been used since ancient times, but effective and safe methods of birth control only became available in the 20th century. Planning, making available, and using birth control is called family planning. Some cultures limit or discourage access to birth control because they consider it to be morally, religiously, or politically undesirable. The term birth control is a bit of a misnomer since abortion is not regularly considered under the term.
In teenagers, pregnancies are at greater risk of poor outcomes. Comprehensive sex education and access to birth control decreases the rate of unwanted pregnancies in this age group. While all forms of birth control can generally be used by young people, long-acting reversible birth control such as implants, IUDs, or vaginal rings are more successful in reducing rates of teenage pregnancy. After the delivery of a child, a woman who is not exclusively breastfeeding may become pregnant again after as few as four to six weeks. Some methods of birth control can be started immediately following the birth, while others require a delay of up to six months. In women who are breastfeeding, progestin-only methods are preferred over combined oral birth control pills. In women who have reached menopause, it is recommended that birth control be continued for one year after the last period.
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Which event would indicate that evolution has occurred?
An allele frequency changes in a population.
An allele frequency changes in a population.
An animal gets fat.
, , An animal gets fat.,
A white-eyed fly is born into a population of brown-eyed flies.
A white-eyed fly is born into a population of brown-eyed flies.,
A new predator come
a) An allele frequency changes in a population would indicate that evolution has occurred.
Allele frequencies in a population can shift by chance alone due to sampling error from generation to generation, and this is a phenomenon known as genetic drift. Genetic drift is a random process that can produce significant population changes quickly.Allele frequencies in a population are a reflection of genetic variety. Allele frequencies that fluctuate over time may be a sign of genetic drift or a population that has undergone new mutations.The population is evolving if the frequencies of alleles or genotypes differ from the value predicted by the Hardy-Weinberg equation. The allelic frequency is stable from generation to generation in populations that are in the Hardy-Weinberg equilibrium, and the distribution of alleles may be calculated.DISCLAIMER
Which event would indicate that evolution has occurred?
a) An allele frequency changes in a population.
b) An animal gets fat.
c) A white-eyed fly is born into a population of brown-eyed flies.
d) A new predator comes
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The energy content and biomass of ________ is lowest in any terrestrial food web.
The energy content and biomass of the top carnivore is the lowest in any terrestrial food web.
The terrestrial food web connects all land animals, from the smallest soil bacteria to the largest forest beasts. The relationships between herbivores (animals that consume plants), scavengers (animals that consume dead animals or plants), and decomposers are investigated by ecologists at SERC.
Write down the principal producers, herbivores, omnivores, and predators for the selected habitat to establish a terrestrial food web. Arrows that depict a predator and prey are used to connect them. The finished product can resemble a food web or map. The tundra, taigas, temperate deciduous woods, tropical rainforests, grasslands, and deserts are a few examples of the terrestrial food web.
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If the silicate to carbonate conversion process was to increase over a period of millions of years, how would this affect volcanism? why?
The silicate and carbonate geochemical cycle which is also known z inorganic carbon cycle.That describe the long-term transformation of silicon rocks to carbonate rocks by weather and sedimentation over a period of time.
This transformation of carbonate rocks back into silicate rocks by the process of metamorphosis and volcanism. Carbon dioxide removed from the atmosphere during burial of weather minerals and which return to the atmosphere through volcanism.
After one millions of years , the silicate and carbonate cyclic process is controlling the earth's climate because it regulating the carbon-dioxide levels and global temperature. The rate of silicate weathering shows the climate is cool, causing CO2 to increase and warming the surface through the greenhouse effect.
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Understand the meaning of critical thinking.
Practice thinking skills at the "evaluate" level of Bloom's Taxonomy.
500 words
Answer:
BALLI BALLI VİSKİ YENGRNİZ HEYCANLI
Explanation:
İSA MUSA SEN BİZİ KUTSA
Studies show that macula communicans are common but NOT found as part of the tissues in the gallbladder or skeletal muscle. One possible explanation for this could be that these organs are:
To allow for absorption and secretion to take place, specialized zones known as macula communicans exist between the muscle cells is one possible explanation.
Explain about macular communicans?Central vision opacity may result from the eye ailment age-related macular degeneration (AMD). It happens when aging causes damage to the macula, the part of the eye that controls accurate, straight-ahead vision.The macula is a part of the retina (the light-sensitive tissue at the back of the eye).The cause is usually abnormal blood vessels that leak fluid or blood into the macula. The macula is located in the region of the retina that regulates central vision.Together with the rest of your retina, the macula transforms light entering your eye into the images you perceive.It regulates your center vision, which gives you the ability to see things in front.Light enters your eye through the front lens and then reaches the retina.Learn more about macular communicans here:
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The scientist tests each sample three ties, explain why it is important to do this
A scientist conducts 3 ties for a sample in a particular experiment. Because an experiment starts with a set of observations which might change due to some factors. So in order to conclude a concrete hypothesis it is a important process.
What is an experiment?An experiment is a scientific process to discover something , test a hypothesis on it and make some observations on that subject. A scientific study can only be possible by performing different kinds of experiments. Scientists can perform and verify the experiment in numerous ways. There are different studies of science which give exposure to numerous scientific fields. The different parts of science are chemistry , biology , physics and many more. Different observations are made on an experiment. You can always explore something new in this field. Scientist propose hypothesis for a phenomenon. There are 3 different types of hypothesis are : simple, complex and directional hypothesis.
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The role of the liver in waste removal is to:
A. Filter urea out of the blood and into the bladder.
B. Filter excess salt and water out of the blood.
C. Break down dead cell into carbon dioxide to be expelled by
the lungs.
D. Break down excess amino acids and ammonia into urea.
D
Explanation:
kidneys are used to filter blood..... removal of water, urea and excess salts
The role of the liver in waste removal is to filter urea out of the blood and into the bladder. Thus, option A is correct.
What is liver and its function?The liver is a very important organ of human body and the weight of liver is 1.5 kg and width of liver is 15 cm. The colour of liver is reddish - brown.
The main functions of liver are it carries out the function of protein's metabolism and it excretes bile and it is also responsible for excreting cholesterol, hormones, bilirubin and drugs.
The liver also stores vitamins, glycogen, and minerals so it the center of storage also.
As liver is a very important organ so to maintain it's health a person have to maintain a healthy weight, take a balanced diet, regular exercise, avoiding toxins, and less use of alcohol leads to keep the liver safe and healthy.
Therefore, the role of the liver in waste removal is to filter urea out of the blood and into the bladder. Thus, option A is correct.
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Which of the dominant approaches to understanding addiction and drug abuse is also known as the disease model? the biological model the cultural model the humanist model the learning model
Biological model of the dominant approaches to understanding addiction and drug abuse is also known as the disease model. Its a biological system that mirrors a disease or shows same disease processes.
According to disease model theory of addiction " identification of drug seeking behavior as a compulsive rather than a conscious choice due to chemical changes in brain which happen with regular substances abuses.
There are three model of addiction - genetic theories , exposure theories ( includes biological and conditioning) and adaptation theories. This disease model describes an addiction as a disease with biological, neurological , genetic and environment sources of origin.
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Ecologist mark is trying to identify the type of pollution that caused excessive algae growth on a river and killed fishes and plants. which type of pollution caused this situation?
Nutrient pollution is the process where too many nutrients, mainly nitrogen and phosphorus, are added to bodies of water and can act like fertilizer, causing excessive growth of algae.
Factors influencing Nutrient pollution and their effects:
Excessive amounts of nutrients can lead to more serious problems such as low levels of oxygen dissolved in the water. Severe algal growth blocks light that is needed for plants, such as seagrasses, to grow. When the algae and seagrass die, they decay. In the process of decay, the oxygen in the water is used up and this leads to low levels of dissolved oxygen in the water. This, in turn, can kill fish, crabs, oysters, and other aquatic animals.Nutrients come from a variety of different sources. They can occur naturally as a result of weathering of rocks and soil in the watershed and they can also come from the ocean due to mixing of water currents. Scientists are most interested in the nutrients that are related to people living in the coastal zone because human-related inputs are much greater than natural inputs. Because there are increasingly more people living in coastal areas, there are more nutrients entering our coastal waters from wastewater treatment facilities, runoff from land in urban areas during rains, and from farming.All of these factors can lead to increased nutrient pollution.To learn more about nutrient pollution: https://brainly.com/question/23857736
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If a parent cell of a sexually-reproducing species has 28 chromosomes, the number of chromosomes in the gamete would be
When a newborn takes its first breath, what physical changes occur in the heart to increase oxygenation of the infant’s blood?
What mechanism of evolution would tend to favor adaptations that reduce competition between species living in the same place?.
Natural selection mechanism of evolution would tend to favor adaptations that reduce competition between species living in the same place.
According to the theory of natural selection, features that may be passed down enable animals to adapt to their environment more effectively than other members of their own species. As a result, the species evolves because it can survive and reproduce better than other members of the species. One of the mechanisms or causes of evolution is natural selection. Physical or behavioral characteristics that help an organism fit in with its surroundings are called adaptations. Random mutations result in heritable variation.Natural selection may result in speciation, the process by which one species gives rise to another that is utterly separate. It is one of the mechanisms that propels evolution and contributes to the understanding of the variety of life on Earth.learn more about Natural selection here: https://brainly.com/question/524043
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What differentiates an autonomic reflex from a somatic reflex? a single sensory neuron in the sensory pathway
A somatic reflex is that somatic reflex has a only one motor neuron that is present in it reflex arc.
What is reflex?The term reflex is in common use in anatomy, physiology, biology and psychology. Reflex has to do with an action that a person could perform unconsciously. The reflex that is performed by an individual could be autonomic reflex or a somatic reflex.
For the autonomic reflex, there are two neurons that are found to make up the motor components that are present in the reflex arc while the somatic reflex has only one motor neuron that is present in it reflex arc.
As such, we can conclude finally that what differentiates an autonomic reflex from a somatic reflex is that somatic reflex has a only one motor neuron that is present in it reflex arc.
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Collecting tubules merge to form the ducts of bellini.
a. true
b. false
It is true that the collecting tubules merge to form the ducts of Bellini.
Papillary ducts or collecting ducts or the renal collecting tubules were formerly known as the ducts of Bellini. They are structures which are present in the distal portion of the collecting ducts in our kidneys.
These ducts are formed when collecting tubules merge. They receive the renal filtrate, which is the precursor to urine, from a number of medullary collecting ducts and it empties into a minor calyx. These ducts regulate the reabsorption of water and also balances the electrolytes.
Hence option a is the correct option.
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The ability for an enzyme to change its shape upon substrate binding represents the concept of:________
Answer:
The specific reaction of an enzyme depends on its active sites, which has shapes that closely matches the shape of its substrates. Upon substrate binding, the enzyme changes shape slightly in a way that allows the chemical reaction to happen more readily, thus reducing the activation energy of the reaction.
Explanation:
The most biologically devastating oil spills in the marine environment are usually a result of?
The most biologically devastating oil spills in the marine environment are usually a result of the sinking of oil tankers.
An oil spill is a type of pollution that occurs when a liquid petroleum hydrocarbon is released into the environment, particularly the marine ecology.
Oil releases into the sea or coastal waterways are generally referred to as marine oil spills, however land-based spills are also possible.
Oil spills can result from crude oil discharges from tankers, sinking of oil tankers, offshore platforms, drilling rigs, and wells as well as refined petroleum products (like gasoline and diesel) and their byproducts, heavier fuels used by big ships like bunker fuel, or the spill of any oily waste or garbage.
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The diseases caused by aspergillus species are considered opportunistic. which of the groups listed here would be most likely to become infected with aspergillus?
AIDS patients would be most likely to be infected with aspergillus.
Aspergillus:The majority of persons who get this ailment do so by inhaling mold spores. Spores can also enter the body through a cut or open wound, but this happens less frequently. People with cystic fibrosis or asthma are more likely to develop allergic bronchopulmonary aspergillosis.
Other than your lungs, Aspergillus can infiltrate other parts of your body, like your sinuses. The fungus in your sinuses might result in a stuffy nose and occasionally discharge that may contain blood. There may also be fever, face pain, and headache.
The fungus can develop on dead leaves, grain that has been kept, compost piles, or other rotting vegetation. Additionally, it is present on marijuana leaves. Despite the fact that aspergillus is something to which most people are frequently exposed, aspergillus infections in immune-suppressed individuals are quite uncommon.
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What class of mutations do you think would be less likely to lead to cf? explain your reasoning
Class IV and Class V mutations would be less likely to lead to Cystic Fibrosis (CF).
Class IV mutation or Conduction mutation involves reduced chloride conductance. It changes the shape of the protein channel so that chloride cannot move easily in and out of the cells. Less than 3% of people with cystic fibrosis in Europe have this type of mutation.
Class V or Insufficient Protein mutation is associated with reduced protein levels. It results in a reduction in the amount of CFTR protein produced by the cells. Less than 3% of people with cystic fibrosis in Europe have this type of mutation.
These two classes of mutations cause a milder reduction in CFTR function.
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The absorption of carbon dioxide from plants can be analyzed via satellite as shown in the image below. In the image below, green represents land areas where carbon dioxide is being absorbed, and blue represents sea areas where carbon dioxide is being absorbed. The darker the color, the more carbon that location absorbs each year.
In this world map, land areas are colored green and ocean areas are colored blue. The greener or bluer the location, the more carbon that location absorbs each year. Location A is very green.
Public Domain
What can you conclude about Location A?
The carbon is causing climate change in this zone.
There is little carbon being released by decomposers.
The carbon is sinking into long-term storage as a result of combustion.
There is a large amount of carbon being absorbed through photosynthesis.
The conclusion which is most valid about location A according to the description of the image is that; There is a large amount of carbon being absorbed through photosynthesis.
What is Photosynthesis?The simple definition of photosynthesis indicates that it is a food-production process of green plants in which case, Carbon is absorbed and carbon dioxide is released.
Hence, since the location A is ascertained to be very green, it follows from the description in the task content that location A has a large amount of carbon being absorbed through photosynthesis as most plants are on land.
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What was the main goal of the human genome project (hgp)? see concept 21.1 (page)
The main goal of the human genome project(hgp) is to identify the nucleotide sequence of the whole human genome and map all of the human genes.
To identify the DNA sequence of the entire human genome, researchers from around the world collaborated on the Human Genome Project (hgp).
Sequencing the entire genome. Identification of the complete human genome are some other goals for human genome project.
The Human Genome Project (HGP) was an international, cooperative research initiative with the aim of completely mapping and comprehending every human gene. Our "genome" is the collective name for all of our genes.
The Human Genome Project located the entire human gene pool, sequenced them all, and identified some alleles, notably those that, in the event of a mutation, are capable of causing disease.
Genes may be mapped in relation to other genes or to the physical characteristics of the chromosome.
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What sort of instructional outcome is mr. bevins seeking to accomplish when he wants his biology students to ""develop a sincere respect for the scientific process""?
The instructional outcomes are lacking but they may be associated with affective outcomes that allow them to develop a respect for the scientific process.
What is the scientific process?The scientific process is a series of steps by which it is possible to collect empirical evidence by testing hypotheses.
The affective outcomes associated with respect to the scientific process involve a real understanding of the importance of this process in our daily lives.
In conclusion, the instructional outcomes that Mr. Bevins seeks for his students are lacking but they may be associated with affective outcomes that allow them to develop a respect for the scientific process.
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Describe the structure and function of mirna, snrna, and lncrna, which represent the three major types of noncoding rnas; what are four mechanisms by which lncrna molecules are thought to regulate cellular processes?.
Non-coding RNAs are a large family of RNAs that are not coding for known proteins.
microRNAs(miRNA):
MicroRNAs are 18–24 nucleotide short RNA transcripts that control translational gene expression. The majority of miRNAs are synthesized from DNA sequences into precursor miRNAs (pre-miRNAs), main miRNAs (pri-miRNAs), and mature miRNAs. miRNAs interact with the 3′ UTR of target mRNAs to suppress expression.Small nuclear RNAs(snRNA):
The typical length of a snRNA is 150 nucleotides. snRNAs are found in eukaryotic cells in the Cajal bodies and splicing speckles of the cell nucleus. Either RNA polymerase II or RNA polymerase III transcribes them.Long noncoding RNAs(lncRNA):
The three domains of the lncRNA are structured into a modular structure with 12 helices, 8 terminal loops, 5 sizable internal loops, and a five-way junction. lncRNA are epigenetic regulators by modulating histone or DNA modification, primarily methylation and acetylation, and control epigenetic modification primarily in the nucleus, which controls gene transcription at the transcriptional level.They regulate cellular processes by (i)chromatin remodeling, (ii) preventing the activity of particular transcription factors, (iii), blocking the promoter area of particular genes, (iv), building double-stranded RNA complexes with mRNA or miRNAs, and finally causing gene expression.Learn more about the Types of RNA with the help of the given link:
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In response to a commission by the lincoln center, marsalis wrote blood on the fields in the european tradition of:______.
In response to a commission by the Lincoln center, Marsalis wrote blood on the fields in the European tradition of oratorio.
What Marsalis wrote blood on the fields in the European tradition?Blood on the Fields is a two and a half hour jazz oratorio which was performed by Wynton Marsalis. It was commissioned by Lincoln Center in which it treats the history of slavery and its aftermath in the United States of America. The background of Marsalis prepared him to form a music that drew from a diversity of traditions and styles. Therefore, in response to the Lincoln Center commission, he decided to create a work in the European oratorio tradition.
So we can conclude that In response to a commission by the Lincoln center, Marsalis wrote blood on the fields in the European tradition of oratorio.
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What is the difference between colonial and multicellular organisms?
Answer:
the individual organisms that form a colony or biofilm can, if separated, survive on their own, while cells from a multicellular organism (e.g., liver cells) cannot.
Diluting a pollutant over and
over until it is very difficult to
detect is known as which of
theses processes?
A. serial dilution
B. oxidation reaction
C. reduction reaction
D. incredible dilution
Assuming dragon genetics follows the same rules as fruit flies, what ratio of genotypes would you expect if the genes were not linked? (remember you are crossing ffbb x ffbb)
Assuming dragon genetics follow the same rules as fruit flies, we would get the same possible genotype for all 16 offspring provided that the genes are not linked.
Considering dragon genetics, flame eyes (F) are dominant to blue eyes (f) and burbling (B) is dominant to whistling (b).
Now, a dihybrid cross between two homozygous blue-eyed, whistling dragons will yield 16 offspring all with the same possible genotype .i.e. homozygous blue-eyed, whistling type.
Morgan through experiments on fruit flies observed that when the two genes in a dihybrid cross were situated on the same chromosome, the proportion of parental gene combination were much higher than the non-parental type.
He attributed this due to the physical association or linkage of the two genes and coined the term 'linkage' to describe the physical association of genes on a chromosome. The term 'recombination' is to describe the generation of non-parental gene combination.
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A benefit of parental care is ___________, while a disadvantage is ___________.
A. symbiosis, parasitism
B. increased survival, high cost of time and energy
C. group behavior, feeding the group
D. incubation of eggs, less young can be raised