The effects of weathering, erosion would cause them to appear different. A lot would change, especially throughout 25 million years, because as land would either weather away & otherwise shift in oceans or on land.
Do you believe that the landmasses of the Earth are still shifting?Even now, the continents are all still shifting. Seafloor spreading zones as well as enormous rift valleys are some of the most active tectonic sites. Molten rock rises from deep within the Earth during seafloor spreading, adding new seafloor (oceanic crust) towards the edges of the old.
What is the Earth a planet?Our home planet, Earth, is a world unto itself. Earth, this same third planet from the sun, is the only place inside the known universe where the presence of life has been confirmed. With a 3,959-mile radius, Earth is the fifth-largest planet within our solar system and the only one whose surface is known to contain liquid water.
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Peer review is the process
A.
by which scientific work is reviewed by anonymous, independent experts.
B.
by which scientists are rated on their yearly contributions to the field.
C.
through which a theory can become a law.
D.
None of the above
Peer review is the process (A) by which scientific work is reviewed by anonymous, independent experts.
Peer review is the procedure by which an expert or group of experts evaluate a scientific research article or research work before publishing it in any scientific journal. The experts assess the validity, quality and originality of the scientific work or research article for publication.
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States of tension or arousal that arise from a biological need and are unlearned are called _____
States of tension or a rousal that arise from a biological need and are unlearned are called drive.
An unlearned, or primal, drive is a state of tension (arousal) that results from the disruption of an organism's homeostatic condition. Food can be consumed to lessen a hunger drive, which is an a roused state brought on by hunger. Driving less leads to the restoration of equilibrium. Therefore, drives can be viewed as the result of a physiological requirement that an organism is compelled to lessen or eradicate. Learning theorist Clark Hull created an equation to demonstrate the connection between motivation and learning. It is the intensity of a person's need determines the intensity of their drive
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Which of the following could be a nucleotide of DNA?
A.) deoxyribose + phosphate group + thymine B.) deoxyribose + phosphate group + uracil
C.) ribose + phosphate group + thymine
D.) ribose + phosphate group + uracil.
Many people have said A and many have said D, so im very confused.
Answer:
A.) should be the answer.
Which best describes alleles?
A. They are usually fundamental or modern.
B. They are usually physical or spiritual.
C. They are usually true or false.
D. They are usually dominant or recessive.
Answer:
D. they are usually dominant or recessive.
Explanation:
alleles are pairs of genes found on a particular spot a chromosome. If one is dominant over the other it give rise to a particular trait.
Simulation tools, environments and frameworks for UAVs and multi-UAV-based systems performance analysis (version 2.0)
For a safer approach, the proposed model is simulated using available software instead of hardware implementations.
Frameworks for UAVs and multi-UAV-based systems -
Unmanned aerial vehicles (UAVs) received a lot of attention during the past 10 years and are now employed in a variety of settings and systems. It is vital to evaluate the UAVs' capabilities, the effects of applications, routing protocols, mobility, and other network aspects. Real experiments, especially those involving multiple UAV-based systems, can be very expensive and difficult to carry out.The tools for mono-UAV-based systems as well as the tools for multi-UAV-based systems are identified. The objectives, specifications, advantages, and disadvantages of each instrument under study are covered in full in this essay. In addition, a variety of UAV simulators is offered. It provides recommendations that will be helpful to researchers and assist them in locating and choosing the right instruments.Learn more about UAVs and multi-UAV-based systems
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Underestimation of blood pressure will occur if the blood pressure cuff's width covers?
In adult blood pressure cuff size is 181 from 25 to 7 year old, which is allocated to random sequence that the measurement of blood pressure using a cuff .
systolic and diastolic blood pressure is underestimated from 3 to 5 mm Hg in men and 1 to 3 mm Hg in women's .Blood pressure cuff is a monitor which used to measure the blood pressure. Its is composed of inflatable cuff to collapse and release the artery under the process.
Mercury and anterior used to measure the blood pressure . The cuff is wrapped around your arms in upper side and inflated to stop the flow of blood in arteries.
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In this experiment, you will breed mice to investigate the role of gens when parents pass traits down to their offspring. State this in the form of a question that you can investigate through experimentation with mice.
In the experiment, it will pass on features or diseases can investigate through experimentation with mice.
What is mice?Mice are tiny mammals. Mice are recognized for their body length scaly tail, small, rounded ears, pointy snouts, and high breeding rates. The ordinary house mouse is the most well-known type of mouse (Mus musculus). Mice are a common choice for pets.According to several definitions, a mouse is any animal that belongs to the family Muridae of the mammal order Rodentia's genus Mus. Any little animal from the Muridae family or any rat-like small animal from one of the several rodent groups.Although some prefer nuts and seeds, mice that consume insects, spiders, and their young can help control numbers and stop infestations from occurring. Larger mice typically eat smaller centipedes, roaches, and crickets as food.Learn more about mice here:
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Determine whether the following statement is true or false, and why: "The global distribution of resources is shared equally among countries. This is often a cause of conflict." A. True B. False, it should read "The global distribution of resources is not shared equally among countries. This has led to a lack of conflict." C. False, it should read "The global distribution of resources is shared equally among countries. This has led to a lack of conflict." D. False, it should read "The global distribution of resources is not shared equally among countries. This is often a cause of conflict."
The correct choice is False, it should read "The global distribution of resources is not shared equally among countries. This is often a cause of conflict" and is denoted as option D.
What are Resources?These are materials which are natural and add value to the living of the individuals in the area.
Resources are not shared equally among countries which occasionally leads to conflict and war due to different climatic conditions, topography etc.
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Action potentials travel swiftly down: Group of answer choices dendrites with myelin and more slowly in dendrites without myelin. dendrites without myelin and more slowly in dendrites with myelin. axons with myelin and more slowly in axons without myelin. axons without myelin and more slowly in axons with myelin.
Action potentials travel swiftly down: axons with myelin and more slowly in axons without myelin.
The conduction velocity of the action potential is faster in myelinated axons, the nerve impulse generated by an action potential can propagate faster than it loses its strength due to the insulation that protects against signal loss. Similar to the insulation around wires in electrical systems, glial cells form a membrane sheath surrounding axons called myelin, insulating the axon. This myelination, as it is called, can greatly increase the speed of signals transmitted between neurons. The action potential travels down the axon as a result of sodium influx depolarizing near-threshold segments of the axon. A voltage change that reaches a threshold value causes voltage-gated sodium channels in the axonal membrane to open.
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drawing upon the results of this exercise, why is pseudomonas aeruginosa of such concern in burn patients chegg
Pseudomonas aeruginosa is of concern in burn patients beacuse it can cause infections like AIDS,diabetes mellitus , etc.
Pseudomonas aeruginosa is a common bacteria that can be found in soil, water, and other environmental niches. Burn wounds are intricate microenvironments where bacterial pathogens like P. aeruginosa can cause infections. Typical virulence factors like pyocyanin and pyoverdine expressed at higher levels than they would have under conventional laboratory conditions.
Elastase is secreted as well, is primarily responsible for the host tissues' degradation. P. aeruginosa infections cause severe consequences mostly in organisms with weakened natural defences. Examples of these circumstances include burn wound patients.
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rewrite the following sentences correctly
a. Wheat is cultivated for fiver and oil
Answer:
what is the meaning of non cooperation
Answer:
Oil and wheat is cultivated for fiver
Answer the question as a CER (Claim, Evidence, Reason.)
Question: Which animal or plant should be protected from hunting or gathering in order to keep the healthiest ecosystem?
https://www.learner.org/wp-content/interactive/envsci/ecology/ecology.html
Key stone species should be protected from hunting or gathering in order to keep the healthiest ecosystem. One illustration of a keystone species in North America is the American Beaver (Castor canadensis).
Claim: Some species are essential to the survival of the other species in the ecosystem in every environment.
Reason: A large predator or a little plant could be the keystone species, but without them the ecosystem might not exist. If a keystone species vanished, some ecosystems might not be able to adjust to environmental changes.
Evidence: Often, it takes the extinction of a keystone species for the importance of that species in an ecosystem to be fully understood. Robert Paine, an ecologist who popularised the phrase "keystone species" in the 1960s, discovered the significance of such species while researching starfish along Washington state's rugged Pacific coast.
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If an overlap develops between the ranges of two closely related species, and if the species seek to occupy the same niche in the zone of overlap. What will probably happen in the zone of overlap?
The two species will interbreed and produce a hybrid species If an overlap develops between the ranges of two closely related species, and if the species seek to occupy the same niche in the zone of overlap.
When two members of the same species mate, the offspring receives half of each parent's DNA. This is what gives you a mixed-parent appearance. Hybrids are produced when two different species are crossed, and as a result, they have a 50% gene contribution from each parent species.
A hybrid in reproductive biology is a child born from the union of two parents belonging to different species or subspecies. A mule is an illustration of an animal hybrid. The creature is the result of breeding a horse with a donkey. Another animal hybrid is the liger, which is produced when a lion and a tiger mate.
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Provide one argument for the case that you are exploiting your organelles.
If organelles are being exploited, a cell won't be able to survive.
At various phases of their invasion and replication, viruses take over various cell organelles, including the endosomes, endoplasmic reticulum (ER), Golgi complex, mitochondria, and nucleus, starting from the cell membrane with a wide assortment of receptors.
Researchers have figured out how cells locate and eliminate a mitochondrial organelle that, if destroyed, can cause genetic issues, cancer, neurological illnesses, inflammatory diseases, and aging. Diabetes, heart disease, Alzheimer's disease, Parkinson's disease, and even normal aging have all been related to mitochondrial dysfunction.
Lysosomes (vacuoles in yeast and plants) and autophagosomes subsequently combine to destroy the contents of the autophagosomes. The removal of excess or damaged organelles, clumped proteins, or pathogens from the cell through this breakdown process is essential for maintaining cellular homeostasis.
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why does oxygen concentration in water decrease when sewage is discharge into river
The most important factor determining whether a receptor-operated ion channel is inhibitory or excitatory is
Most important factor determining whether a receptor-operated ion channel is inhibitory or excitatory is whether the permeant ion's reversal potential is positive or negative to the threshold.
What are ion channels?Ion channels are pore-forming membrane proteins that allow ions to pass through the channel pore.Their functions include establishing a resting membrane potential, shaping action potentials and other electrical signals by gating the flow of ions across the cell membrane, controlling the flow of ions across secretory and epithelial cells, and regulating cell volume. Ion channels are one of the two classes of ionophore proteins, the other being ion transporters.To learn more about Ion channels,
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What type of human cells contain a half set of chromosomes?
Which molecule will undergo only london dispersion forces when interacting with other molecules of the same kind?.
Butane, C₄H₁₀ will undergo only London dispersion forces when interacting with other molecules of the same kind.
London dispersion force:
The weakest intermolecular force is called the London dispersion force.When the electrons in two nearby atoms occupy positions that cause the atoms to temporarily form dipoles, the resulting transient attractive attraction is known as the London dispersion force. There are instances when this force is referred to as an induced dipole-induced dipole attraction.Butane molecules only exhibit London dispersion forces because they are non-polar and have a symmetrical distribution of electron density.
Butane:
It is a covalent non-polar molecule. Every C-C and C-H bond is non-polar. This is because there is little or no electronegativity difference between C and C in C-C bonds and none between C and H in C-H bonds.Learn more about the London dispersion force here,
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What is the term for the gurgling sounds that infants make in the back of their throats?
Babbling is the term for the gurgling sounds that infants make in the back of their throats
Babbling is a combination of consonant and vowel sounds — single syllable sounds like “pa” or “ba,” or long “ba-ba-ba-ba-ba.” Over time, baby babble evolves into word-sounds and eventually, basic words.
It is caused by air passing through normal saliva or refluxed milk. These gurgling noises are likely to build up during sleep. Slowly, the newborn learns to swallow more often. Nasal Noises are usually caused by dried mucus in the nose.
It usually occurs between 6 and 9 months. Babbling turns into baby jargon, or “nonsense speech.”
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Science is the only field/discipline necessary to solve environmental problems.
a. True
b. False
Science is the only field/discipline necessary to solve environmental problems. The statement is true.
What is Science?The three main branches of modern science are typically: the natural sciences (such as biology, chemistry, and physics), which study the physical world; the social sciences (such as economics, psychology, and sociology), which study people and societies; and the formal sciences (such as logic, mathematics, and theoretical computer science), which study formal systems, which are governed by axioms and rules.If the formal sciences are considered science disciplines, there is debate. Due to the fact that they do not reliant on empirical data. In fields like engineering and medicine, applied sciences are disciplines that apply scientific knowledge to real-world problems.To learn more about Science with the given link
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Many studies have model the niches of species, however, most fail to describe the specific niches being modeled
Hutchinson's definition from 1957 is the finest one that can be found. An n-dimensional hypervolume known as an ecological niche is where a species can sustain a livable population. The tolerance boundaries must be understood in order to comprehend this. These are the constraints that place limits on the organism. For instance, if the outside temperature exceeds 55 °C, a dog will perish. Therefore, 55 °C is one temperature that a dog can tolerance limits for temprature in the dog is therefore 55°C.
specific niches ?
Systematics, ecology, conservation, public health, and other fields are increasingly using ecological niche modeling, or the assessment of the dimensions of a species' basic ecological niche, to forecast its worldwide spread. This method frequently (necessarily) relies on data that consists solely of presence records. Numerous modeling techniques have been developed in recent years to estimate these connected representations of a species' ecology, distributional biology, and evolutionary history. Despite this, many of these techniques lack a formal foundation in ecological and evolutionary theory. In this article, we lay forth a formal foundation for the collection of methods known as "ecological niche modeling," examine some real-world examples of how they can be applied, and explain how the results should be interpreted.
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Behavior modification to reduce self-injurious behaviors has been most successful in programs that rely on the use of:________
Behavior modification is based on the principles of behaviorist B.F. Skinner's operant conditioning. This means that, in essence, Skinner found that reinforced behavior tends to be repeated and behavior that isn't reinforced tends to phase out.
Interventions or ways to decrease this behavior include reinforcement of alternative behaviors, reinforcement of incompatible behaviors, use of schedules to engage children, providing communication systems, decreasing academic demands, and providing replacement behaviors.
Some behavior modification techniques are-
Positive reinforcement.Negative reinforcement.Punishment.Flooding.Systematic desensitization.Aversion therapy.Extinction.Behavior Modification Therapy
Within therapy, therapists using behavior modification therapy focus on specific goals with clients, which is changing certain maladaptive or undesirable behaviors in specific situations. During a first session, the therapist would listen to the client's concerns to see what the client needs or wants to change; this could be a phobia, overeating, a problem with focus and productivity, etc. The client and therapist would identify the specific problem to be solved and then figure out what steps are necessary to change the behavior gradually. The therapist and client develop a treatment plan.
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The hormone ______, which is secreted by the adrenal cortex, causes the kidney to conserve ________ ions and excrete ________ ions and indirectly helps to maintain systemic blood pressure.
The hormone adrenocorticotropin hormone (ACTH). which is secreted by the adrenal cortex, causes the kidney to conserve sodium ions and excrete potassium ions and indirectly helps to maintain systemic blood pressure.
What are hormones?
Hormones are chemical messangers or substances which are produced by the body and released to the sites where they are needed in the body.
They are substances produced by one tissue and conveyed by the bloodstream to another to effect physiological activity.
So therefore, the hormone adrenocorticotropin hormone (ACTH). which is secreted by the adrenal cortex, causes the kidney to conserve sodium ions and excrete potassium ions and indirectly helps to maintain systemic blood pressure.
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Shown below (in the video) is a micelle, having a hydrophilic end and a hydrophobic end. Which of the following best describes the micelle
A loosely bound aggregation of several tens or hundreds of atoms, ions (electrically charged atoms), or molecules, forming a colloidal particle
one of a number of ultramicroscopic particles dispersed through some continuous medium
What are Micelles ?Globular or roughly spherical structure composed of organic molecules so their nonpolar ends are oriented toward the interior of the aggregate and the polar ends are oriented away from the interior.
Soaps and detergents form micelles when temperatureis above Kraft temperature and concentration is above critical micelle concentration (CMC). For soaps, CMC is about 10−4 to 10−3 M.Micelles are composed of hydrophobic and hydrophilic components assembled into nanosized spherical, ellipsoid, cylindrical, or unilamellar structures.Learn more about Micelles here:
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Antibiotic X is made naturally by the bacterium Bacillus subtilis and is primarily only used to target skin infections caused by a select number of Gram positive bacteria. This type of chemotherapeutic drug would best be characterized as a(n):
Chemotherapeutic drug would best be characterized as a Narrow-spectrum antibiotic.
What is a narrow spectrum antibiotic?A limited number of bacterial species can be killed or inhibited by a narrow-spectrum antibiotic. Fidaxomicin and sarecycline are two examples of narrow-spectrum antibiotics. Narrow spectrum antibiotics are active against a selected group of bacterial types. They can act on either gram +ve or gram –ve but not both.
Only undesirable bacteria species may be killed or inhibited by a narrow-spectrum antibiotic (i.e. causing disease). As a result, it largely ignores the beneficial bacteria, reducing any unintended consequences on the microbiota. Low likelihood of bacterial resistance emerging.
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In a voltaic cell, a salt bridge is needed to allow the motion of choose. Between the terminals. In the salt bridge, choose. Move toward the anode and choose. Move toward the cathode.
In a voltaic cell, a salt bridge is needed to allow the motion of ions between the terminals. In the salt bridge, anions move toward the anode and cations move toward the cathode.
What is a voltaic cell?A voltaic cell is an electrochemical device that harnesses the power of a chemical process to generate electrical energy. A voltaic cell's key components are:
Anode, an electrode where oxidation takes place. Anions move toward the anode.Cathode, an electrode where reduction takes place. Cations move toward the cathode.A salt bridge is an electrolyte chamber required to finish the circuit in a voltaic cell.Half-cells are containers that serve as a barrier between the oxidation and reduction reactions.The external circuit, which typically has a load attached to it, is used to carry electron flow between the voltaic cell's electrodes.A load is a component of a circuit that uses an electron flow to carry out a certain task.Working of a voltaic cell:When an electrode is dipped into the electrolyte at the electrode and electrolyte contact surface in a voltaic cell, the electrode's atoms tend to produce positive ions in the electrolytic solution while leaving the electrode's electrons unaffected. The electrode thus acquires a negative charge.
Additionally, the electrolytic solution's positive ions have a propensity to deposit on the electrode, giving it a positive charge. The electrodes get positively or negatively charged in relation to the electrolyte as a result of the two opposite processes. As a result, there is a potential difference between the electrode and electrolyte. The term "electrode potential" refers to this potential difference.
Now, the electrode where reduction occurs is known as the cathode and turns positive in relation to the electrolytic solution, whereas the electrode where oxidation occurs is known as the anode and has a negative potential in relation to the electrolytic solution. This caused a potential difference to form between the voltaic cell's two electrodes. Cell Potential is the name given to this potential differential.
The voltaic cell's potential is sometimes referred to as its electromotive force (EMF) when no current is being drawn from it. Electrons begin to flow from the anode (negative electrode) to the cathode (positive electrode) when an external circuit is connected to the voltaic cell. As a result, in the external circuit, the normal current flows from the positive terminal to the negative terminal.
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Use what you know about the effect of heat on gases to explain why, the gases came out of the leaf when it was put into warm water.
Answer:This is due to the fact that the air in the leaf's air spaces expands and escapes through the lead epidermis's stomata.
Explanation:
This happens because when leaf are submerged it is using light to continue process of photosynthesis, this process includes the release of oxygen that we see in bubble format .
What is photosynthesis?When the leaf is put in warm water it is using light to continue the process of photosynthesis. Part of this process is to let oxygen out of the leaves. It is this oxygen that you are seeing as bubbles in the water.
Which part of the leaf the gas came from?The only way for gases to diffuse in and out of the leaf is though small openings on the underside of the leaf, the stomata.
Therefore, it can be understood that this happens because when leaf are submerged it is using light to continue process of photosynthesis, this process includes the release of oxygen that we see in bubble format .
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That the allele that gives human red blood cells increased resistance to malarial parasites also reduces the amount of oxygen those cells can carry demonstrates
That the allele that gives human red blood cells increased resistance to malarial parasites also reduces the amount of oxygen those cells can carry demonstrates Pleiotropy.
What is Pleiotropy?
Pleiotropy is when a single gene demonstrates multiple phenotypic traits.
The cause of pleiotropy is the development of several distinct by overlapping mechanisms.
The phenotypic traits determine the external or the physical features of the organism. This could be the height, the weight, the color, etc.,
The phenotype of an organism is influenced by its genetic makeup.
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__________ starts with changes at the genetic level of individual cells, which may cause some cells to lose control and divide rapidly and uncontrollably.
Cancer starts with changes at the genetic level of individual cells, which may cause some cells to lose control and divide rapidly and uncontrollably.
A condition known as cancer occurs when somebody's cells grow out of control and spread to other body regions. Since the human body contains billions of cells, cancer can develop practically everywhere.
Cancer begins when something goes wrong with this process and your cells continue to divide, preventing the old or abnormal cells from dying as they should. As the cancer cells proliferate out of control, they may suffocate healthy cells. One body struggles to function properly as a result.
Cancerous cells are capable of escaping the area where they first appeared. These cells may leave the lymph nodes and move to other regions of the body.
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Which of the differences listed here could be found among molecules of the same monosaccharide?.
Monosaccharides can differ from one another in: the number of carbon atoms they contain.
Monosaccharides can be divided into groups according to the number of carbon atoms in the molecules: trioses have 3-C atoms, tetroses have 4-C atoms, pentoses have 5-C atoms and hexoses have 6-C atoms. Each of these groups have different compounds, each with the same molecular formula. The bonds can be different between two monosaccharides. There is a difference in the orientation of a hydroxyl group in the ring form of monosaccharides. A glycosidic bond can lead to two possible stereoisomers at the anomeric carbon of one sugar. Also, the many hydroxyl groups of another sugar allow for several possible regioisomers.
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