A multicellular organism with a mouth that lives in an animal host will be a Helminth. The correct option is the third option.
What are Helminthes?They are are group of invertebrate animals known as flatworms.
They are characterized by elongated, roud, or flat bodies. They live mostly as parasites of animals.
They usually have attachment organs that enable them to attach themselves to hosts.
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Narcotics act on the nervous system by producing a?
Answer:
Opioid drugs also disrupt the natural production of norepinephrine and act as central nervous system depressants. Opioids block pain sensations, induce drowsiness, reduce body temperature, and slow heart rate, blood pressure, and respiration functions.
6) On what structure in the cell are proteins needed for cells functions made?
What are 2 other species concepts that can be used to identify species?
Phylogenetic Species Concept (PSC) and Ecological Species Concept (ESC) are the two concepts which is used to identify the species.
Phylogenetic Species are defined as genealogically, independent of mode of reproduction. In this concept a species is a "tip" on phylogeny which is the smallest set of organisms that share an ancestor and can be distinguished from the other such sets.
Ecological Species are termed as the lineages of organisms which is maintained by the selection forces. It is a set of organisms which share environmental niches, with differences between forms in response to the availability of resources and groups being adaptive behaviors.
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How many atoms are there in a 2 moles of oxygen atoms? how many atoms are there in 2 moles of oxygen molecules? group of answer choices.
The number of atoms in 2 moles of oxygen atoms is 1.204 x 10²⁴.
One mole of an element is the number of atoms contained in a substance which totals 6.02 x 10²³ atoms or is the gram weight of the element which is equal to its relative atomic mass (Ar). If there are 2 moles of O₂ atoms then the number of atoms is
Number of atoms = n x L
The number of atoms of O₂ = n x L
The number of atoms of O₂ = 2 x 6.02 x 10²³
The number of atoms of O₂ = 12.044 x 10²³ atoms
The number of atoms of O₂ = 1.204 x 10²⁴ atoms
So, the number of atoms of 2 moles is 1.204 x 10²⁴.
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Exactly 14. 5 moles of co2 are produced from burning how many moles of ch4 in excess oxygen?.
From the combustion results 14.5 mol of CH₄ in excess oxygen.
The combustion reaction is an example of an exothermic reaction because the heat generated from the combustion process is transferred from the system to the surroundings. In the combustion reaction that occurs in fire is the release of energy to the surroundings (producing heat) which causes the surrounding air (environment) to become hotter.
The balanced reaction shows that for every molecule of CH₄ consumed, one molecule of CO₂ is formed. Exactly 14.5 moles of CH₄ are needed for 14.5 moles of CO₂. Note that for every molecule of CO₂ produced, only 2 molecules of O₂ are needed.
CH₄ + 2O₂ → CO₂ + 2H₂O
You need 14.5 x 2 = 29 moles of O₂.
So, in this question, we get an excess of O2.
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explain the role of the followinghormone during homeostasis 1.insulin
Answer:
Insulin enables blood glucose to enter cells, where they use it to produce energy. Together, insulin and glucagon help maintain homeostasis, where conditions inside the body hold steady. When a person's blood sugar is too high, their pancreas secretes more insulin.
Insulin allows the cells in the muscles, fat and liver to absorb glucose that is in the blood. The glucose serves as energy to these cells, or it can be converted into fat when needed. Insulin also affects other metabolic processes, such as the breakdown of fat or protein.
21 Steps of Circulation
Blood is pumped into the pulmonary arteries in the lungs from the right ventricle after entering the right atrium from the body for Circulation.
Twenty one steps involved in Circulation:1. Superior/Inferior Vena Cava
2. R Atrium
3. Tricuspid Valve
4. R Ventricle
5. Pulmonary Valve
6. Pulmonary Arteries
7. Pulmonary Arterioles
8. Pulmonary Capillaries
9. Pulmonary Venules
10. Pulmonary Veins
11. L Atrium
12. Mitral Valve
13. L Ventricle
14. Aortic Valve
15. Aorta
16. Systemic Arteries
17. Systemic Arterioles
18. Systemic Capillaries
19. Systemic Venules
20. Systemic Veins
21. Superior/Inferior Vena Cava
After absorbing oxygen, blood returns to the heart through the pulmonary veins, passing through the left atrium, left ventricle, and aorta before leaving the body through the tissues.
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How do geologic cross-sections help geologists learn about the geologic history of a location?
O They show the oldest and most well-preserved rocks and fossils in a location.
O They reveal the absolute ages of each rock and the fossils it contains.
O. They reveal the rock type, layers, and relative ages of events of a location.
O They present information on the rocks and fossils found at the surface.
They show the oldest and most well-preserved rocks and fossils in a location.
What is geologic cross-sections?A geological cross-section is a visual representation of where the subsurface geological bodies intersect a particular orientation vertical plane. Geological cross sections, which may or may not include accompanying maps, are graphic depictions of vertical slices through the earth used to explain or interpret geological relationships. Line diagrams called "cross sections" depict a landscape from the side. They can display topographic details like hills and valleys or subterranean information like the depth of a river. The height of the land can be determined from cross sections of hills using contour lines.Scientists disagree about whether the rocks are 3.8 billion or 4.4 billion years old, but they were recently discovered in the northeastern edge of Hudson Bay in Canada. The earlier date would place the rocks close to when Earth first created.To learn more about geologic cross-sections refer to:
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The study of heredity and the variation of inherited characteristics.a. Trueb. False
Genetic is the study of heredity and the variation of inherited characteristics is True.
DNA variations within individuals or communities are referred to as genetic variance. Gene sequence differences between members of a species are referred to as genetic variation. There are many genetic variants that appear in the human population, including differences in skin color, hair color, blood type, and dimples.Genetic variety is the existence of variance in gene sequences between different species' individual organisms. Examples of genetic variants seen in the human population include differences in skin tone, hair color, blood type, and dimples. Because inherited DNA varies from person to person, genetic variety allows for individual variances.
complete question:Genetic is the study of heredity and the variation of inherited characteristics.a. Trueb. False.
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Where will nearly all of the further human population growth take place in the world? what is a foreseeable problem with this?
Answer:
Nearly all of this future growth will occur in the 'South'—i.e. Africa, Asia (excluding Japan, Australia and New Zealand), and Latin America—where population size is projected to increase from 5.3 to 7.9 billion between 2005 and 2050
More than half of global population growth between now and 2050 is expected to occur in Africa. Africa has the highest rate of population growth among major areas. The population of sub-Saharan Africa is projected to double by 2050.
Explanation:
Global population growth and the destructive consumption habits of high-wealth countries put pressure on biodiversity and human communities, exacerbating food and water shortages, reducing resilience in the face of climate change, and making it harder for vulnerable groups to rise out of intergenerational poverty.
What is the incentive for producers?
A higher price for a good or service creates an incentive for buyers to buy less of that good or service and for producers to produce or sell more of it.
When the price of goods and services falls, it creates an incentive for buyers to buy more of those goods and services and for producers to produce or sell less of them. Price-based incentives are economic factors that motivate and persuade buyers to take action and complete purchases.
Special pricing allows users to get financial benefits on their purchases. Incentive function of the price mechanism
Manufacturers offer more products because they offer opportunities to generate more revenue and profits. The price increase incentive function is associated with increasing supply along the existing supply curve.
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A human gene was insterted into a plasmid and then produced by a bacterium. Unfortunately, the human protein was not functional. Explain what may have gone wrong.
This gene contains introns, which bacteria do not. If we directly cloned the gene, the bacteria would produce mRNA with introns and would be unable to splice it.
What happens when DNA of humans is inserted into bacterial plasmid?Researchers can create recombinant plasmids by inserting DNA fragments or genes into plasmid vectors. This plasmid can be introduced into a bacterium through a process known as transformation. Because bacteria divide quickly, they can then be used as factories to copy large amounts of DNA fragments.
This gene has introns, which bacteria do not have. If cloned directly, the bacteria would produce mRNA with coding regions and be unable to clip it.
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Esther was on the YMCA diving team. She was on the 30 meter platform preparing to do a dive. If Esther's mass was 50 kg and she hit the water with a force of 980 N, what was her acceleration?
The acceleration of Esther on the YMCA was found to be about 19.6 m/s^2
What are the three acceleration laws?
Unless pushed upon by a force, every item travels in a straight line. An object's acceleration is directly proportional to the net force applied and inversely proportional to the object's mass. There is an equal and opposite reaction to every action.
In basic terms, what is acceleration?
Acceleration is the rate at which velocity varies over time, both in terms of speed and direction. A point or object travelling in a straight path is accelerated if it accelerates or decelerates. Even if the speed is constant, motion on a circle is accelerated because the direction is constantly changing.
as per the formula F=ma
then this formula was rewritten as a=F/m
where m= mass = 50Kg
F= force exerted =980N
acceleration (a) = 980/50
a =19.6 m/s^2
The acceleration of Esther on the YMCA was found to be about 19.6 m/s^2
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How does process of becoming pregnant involving fertilization?
Answer:
5858588874747777766636
Explanation:
777475757474737737373737377373737
(Describe what scientific principles and other relevant knowledge might limit the possible solutions such as(the lifespan of the California condor, the mating habits of the condor, the ecology of the habitat, how to duplicate the habitat in a reserve, what laws needed to be approved and enforced, how did human behavior need to change.
The scientific principles and other relevant knowledge that may limit the possible solutions for the California condor include:
The lifespan of the California condor: The natural lifespan of a California condor is typically around 60 years, which may limit the ability to repopulate the species through captive breeding programs.
The mating habits of the condor: California condors have a very low reproductive rate, with females only breeding every 2-3 years. This may limit the potential for population growth.
The ecology of the habitat: The California condor's natural habitat is limited to specific regions of the western United States and Mexico. Understanding the specific ecological needs of the condor, such as food sources and nesting sites, is crucial for any conservation efforts.
How to duplicate the habitat in a reserve: In order to create a successful reserve for the California condor, it is necessary to replicate the natural habitat as closely as possible. This requires a detailed understanding of the ecology of the species' natural habitat.
Laws needed to be approved and enforced: Conservation efforts for the California condor require laws and regulations to protect the species and its habitat. These laws need to be approved and enforced in order to be effective.
Human behavior needs to change: Human activities, such as hunting, pollution, and habitat destruction, have contributed to the decline of the California condor population. Changing human behavior is essential for the conservation of the species.
What is captive breeding program?Captive breeding programs are efforts to breed and raise certain species of animals in captivity, with the goal of preserving the species, increasing its population, or reintroducing it to the wild.
These programs are often used for endangered or threatened species that are at risk of extinction in the wild. They can be run by zoos, wildlife parks, conservation organizations, or government agencies. The breeding programs can also be used for research, education, and veterinary care.
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what energy carrier compound is found in all living systems
The energy carrier found in all living systems is Adenosine Triphosphate (ATP).
What is Adenosine triphosphate?ATP is the direct source of energy for all metabolic activities in the cell. The energy bound in ATP comes from the energy released in the breakdown of organic compounds in cells, namely in the process of respiration.
ATP is formed from the process of glycolysis that takes place in the mitochondria. Mitochondria are cell organelles that have an internal membrane where glycolysis takes place. Glycolysis is the breakdown reaction of glucose from food into pyruvic acid and ATP. As an energy carrier, ATP is also found in many mitochondria.
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How many stomach compartments does a ruminant have?
The rumen, reticulum, omasum, and abomasum are the four sections of a ruminant's stomach. Volatile fatty acids, which are the cow's principal source of energy, are produced by rumen microorganisms after meal is fermented.
Which organ of a ruminant actually serves as its stomach?The four divisions in a ruminant's stomach are the rumen, reticulum, omasum, and abomasum (Van Soest, 1994). In contrast to the abomasum, which is the actual stomach and resembles the non-ruminant stomach in both anatomy and function, the rumen, reticulum, and omasum are where pregastric fermentation and feed breakdown occur.
Are four stomachs present in all ruminants?Two-toed feet and a four-chambered stomach are characteristics of most ruminants. Reduced or occasionally missing are the upper incisors.
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what would happen to the fox population if the mouse population increases?
They would get more meals.
Sorry if this is incorrect.
If the mouse population increases, the fox population is likely to increase as well since foxes rely on mice as a major food source. This is because with more mice, the foxes will have more food to hunt and will be able to reproduce more successfully.
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Place A and B recieve the same amount of rainfall. Place A has a lot of concrete surfaces and roads. Place B had fewer concrete surfaces and more open areas such as playground and parks. Explain the diffrence between the water tables in place A and place B
The water table in B is greater than the water table in A.
What is the water table?We know that the water table would have to do with the level of the water that can be found under the ground. The water table is formed from the amount of the water that can be bale to get into the ground from the surface of the ground.
Now, we know that if the ground of the place is made up of concrete then there would be less water that would penetrate the ground and then the water table of the place would be found to be lower than those of open areas.
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how many molecules of carbon dioxide are released during one turn of the citric acid cycle?
Answer: 4
Explanation:
Krebs cycle, also known as the TCA (tricarboxylic acid) or citric acid cycle, takes place inside the mitochondrial matrix. This cycle is a stepwise oxidative and cyclic degradation of acetyl CoA. The cycle acts on the 2 pyruvate molecules generated during glycolysis.
The end product of glycolysis is pyruvate. 1 molecule of glucose produces 2 molecules of pyruvate. So 1 molecule of pyruvate is responsible for the release of 2 CO2 molecules during 1 Krebs cycle. Since 1 glucose molecule gives 2 pyruvate molecules. There will be two cycles to utilize both the pyruvate molecules. Thus, 1 glucose molecule is responsible for the release of 4 CO2 molecules during Krebs cycle.
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what is pepsin secreted in its inactive form
Answer: Specific cells within the gastric lining, known as chief cells, release pepsin in an inactive form, or zymogen form, called pepsinogen. By doing so, the stomach prevents the auto-digestion of protective proteins in the lining of the digestive tract.
Part E: Estimate Greenhouse Gas Emission
You’ll design your eco-friendly home to reduce the use of carbon dioxide compared to the average home in the state. Estimate greenhouse gas emissions for your house. Use these three government tools to generate the data you need.
First, go to the US Energy Information Administration and click “Average monthly residential electricity consumption, prices, and bills by state.” Find your state and the average kilowatt-hours of electricity used per month in your state. Multiply that number by 12 to get the amount of energy used in one year.
Then visit the EPA's Greenhouse Gas Equivalencies Calculator and enter the kilowatt-hours of energy for one year into the “If You Have Energy Data” box. Select kilowatt-hours of electricity and click Calculate. The kilowatts converted into emissions equivalents (such as miles driven and average household energy). This information will give you a better perspective on the greenhouse gas emissions for the average home in your state.
Finally, click the EPA's Power Profiler and enter the ZIP code. Choose one of the electrical companies listed (any one will work) and press Enter. Scroll down to see how much of the energy in this ZIP code comes from renewable energy and nuclear energy (a nonrenewable, cleaner energy source) compared to fossil fuel sources (oil, coal, and gas). You’ll also see bar graphs that compare your ZIP code’s energy profile to the national average.
Based on the data you gathered, answer the following questions:
What conclusion can you draw about the emissions of greenhouse gases for the average home in your state or ZIP code? What factors do you think contribute to this emission rate?
How do the emissions in your ZIP code compare to greenhouse gas emissions across the nation? Even if it’s better than the national average, is there room for improvement?
The greenhouse gas is harmful for the earth's environment, and this happens when there is a maximum amount of carbon dioxide released to the atmosphere, which is caused by a lot of human usage of fossil fuels for electricity, etc.
What are the negative effects of green house gases?Several gases are released into the atmosphere, and as a result, the atmosphere warms, negatively impacting many living things such as animals and plants. To reduce the negative consequences of this warming, the emission of carbon dioxide should be decreased.
Hence, the greenhouse gas is harmful for the earth's environment, and this happens when there is a maximum amount of carbon dioxide released to the atmosphere, which is caused by a lot of human usage of fossil fuels for electricity, etc.
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What is a known benefit of cardiorespiratory training?
An important indicator of physical health and general wellness is cardiorespiratory fitness. During physical exercise, the heart, lungs, and circulatory system must cooperate to provide oxygen to the muscles.
Fitness for the heart and lungs can enhance one's overall quality of life. Exercise on a regular basis can boost energy levels, making it simpler to do daily chores. Fitness for the heart and lungs is crucial for daily living since it has many positive effects on the body, mind, and spirit.
Cardiorespiratory fitness is a key factor in enhancing physical health. Regular exercise has been shown to lower the risk of Type 2 diabetes, hypertension, cardiovascular disease, and stroke. It can also aid in increasing muscular mass and decreasing body fat. Additionally, consistent exercise can enhance lung health, cardiorespiratory fitness has advantages for the mind and the body in addition to the physical ones. Regular exercise can lessen stress, elevate mood, and sharpen the mind. Exercise can enhance cognitive performance while lowering anxiety and depressive symptoms
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Which of the following would be least likely to diffuse through a cell membrane without the help of a transport protein
Answer:
A large polar molecule
Explanation:
Answer:
Large polar molecule
Explanation:
Which of the following would be least likely to diffuse through a plasma membrane without the help of a transport protein? A large polar molecule would be the least likely to passively diffuse through a plasma membrane without the help of a transport protein. Both its size and the hydrophobic interior of the membrane would restrict it.
What are two issues biomedical engineers continue to struggle with?
Two issues biomedical engineers continue to struggle with are Coordinating equipment service schedules and getting support from the manufacturer if problems arise.
Government regulatory agencies have strict guidelines on how often and who is qualified to monitor, test, calibrate, and maintain medical devices. These activities should be performed in accordance with the manufacturer's recommendations and state and federal laws. Tracking maintenance requirements for each piece of equipment can be an overwhelming task, especially when biomedical engineers are tasked with maintaining equipment across multiple facilities.
Devices often fail in the worst cases. Some biomedical engineers have the expertise to diagnose and troubleshoot problems in the field, but others are not familiar enough with the equipment to do so effectively. In such cases, the technician should contact the manufacturer for assistance.
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The law of segregation states that every organism possesses a pair of?
Mendel's law of segregation occurs late in meiosis (I and II). This is the first stage of meiosis, in which homologous chromosomes are segregated into her two daughter nuclei with different versions of each gene.
Gregor Mendel's law of segregation consists of four parts. First, define the alleles. Second, it states that an organism inherits one allele of her from each parent. Third, a gamete states that he has only one allele for each trait.
According to the law of segregation, only one of the two gene copies present in an organism is distributed to each gamete (egg or sperm cell) it produces, and the allocation of gene copies is random.
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In the 1960s, mitochondrial dna was discovered with the use of an electron microscope. the presence of mitochondrial dna in eukaryotic cells suggests what about the origin of life on earth?
It's possible that mitochondria were free-living cells (endosymbiotic theory).
What is the proof that mitochondria first appeared in eukaryotes?Mitochondria appear to have evolved only once throughout all of evolution, much like eukaryotes themselves. The mitochondrial DNA is conserved in all known eukaryotic groupings, which provides the strongest support for the idea that mitochondria had a single origin. These genes are definitely homologous and frequently inherited.
What does research on mitochondrial DNA indicate on the ancestry of contemporary Europeans?There was no genetic similarity between the hunter-gatherers and modern Europeans, according to a study of ancient and current mtDNA samples. This finding suggests that modern Europeans are descended from settlers who brought farming to the area, not from the indigenous populations.
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Select the correct answer.
Tim is researching the regenerative property of stem cells as a possible method to treat neurological diseases. His research requires him to grow new nerve cells. Which statement best explains why Tim is using stem cells for this purpose?
A.
Specific genes in a nerve cell’s DNA can be activated to produce new stem cells.
B.
Specific genes in a stem cell’s DNA can be activated to produce new nerve cells.
C.
All genes in a nerve cell’s DNA are activated, so new stem cells are produced each time the cell divides.
D.
All genes in a stem cell’s DNA are activated, so new nerve cells are produced each time the cell divides.
The statement that best explains why Tim is using stem cells for this purpose is option B. Specific genes in a stem cell’s DNA can be activated to produce new nerve cells.
What is stem cell’s DNA?Stem cells have the ability to differentiate into various types of cells, including nerve cells. By activating specific genes in a stem cell's DNA, scientists can direct the stem cell to differentiate into a specific cell type, such as a nerve cell.
Therefore, This is why Tim is using stem cells for his research, as it allows him to grow new nerve cells for potential treatment of neurological diseases.
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Which of the following is an example of bias? *
Repeating experiments with the same results.
Conducting a blind experiment.
Selecting results from one trial over those from other trials
Communicating unfavorable results.
Double-blind study occurs when neither the participants nor the researchers involved in a study know who’s been assigned to the control and treatment groups.
What is research detection bias?Detection bias refers to systemic disparities in how outcomes are determined between groups. Blinding (or masking) outcome assessors may lessen the possibility that knowing which intervention was received, rather than the intervention itself, influences outcome assessment.
Blinding (also known as masking) is a technique used to try to reduce such prejudice. To avoid selection bias, it is a principle of randomised controlled trials that the treatment allocation for each patient is not revealed until the patient has definitively entered the experiment. A clinical study in which neither the participants nor the researcher know the treatment or intervention they are getting until the trial is completed. As a result, the study’s findings are less likely to be skewed.
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All of the traits listed for the common ancestor are [missing from/shared by] both groups.
All of the traits listed for the common ancestor are shared by both groups.
What are the traits of common ancestor?The traits of a common ancestor refer to the characteristics and features that are shared by two or more groups of organisms that are believed to have descended from a common ancestor. These traits can include physical characteristics, genetic information, and behavioral patterns. Some examples of traits that might be found in a common ancestor include:
A particular type of skeletal or muscular structureA specific type of cell or organelleA unique genetic sequence or regulatory elementA specific type of behavior or adaptation to a certain environmentIt's important to note that the traits of a common ancestor are often inferred from the study of living organisms and their evolutionary relationships, as well as from the fossils records. Therefore, the exact traits of a common ancestor can be difficult to determine and may be subject to change as new information is discovered.
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