A reason for the difference in the lactic acid threshold of athletes P and Q is that P is more physically fit and trained than Q.
The level of effort at which lactic acid, or lactate, starts to build up in the blood is known as the lactic acid threshold. The energy needed for low-intensity exercise can be entirely produced by using oxygen-dependent mechanisms (aerobic), and this can go on forever.
The lactic acid threshold is often reached by well-trained runners at 90% of their maximum heart rate and at a pace akin to that of a half-marathon. The lactate threshold typically occurs for less seasoned runners somewhere below 90% of the maximum heart rate.
One can raise the lactic acid threshold by running intervals. Interval training involves frequently exceeding your lactate threshold while jogging a predetermined distance at your highest speed, followed by a recovery pause. For instance, you might decide to sprint 400 meters around a track.
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please help!!
describing how our planet could have possibly developed with less water (or less water ingredients) in the past. Then hypothesize how that would have affected the development of life in general or specifically the human species.
One example would have been more sunlight then usual because the atmoshphere could have been intoxicating, this would decrease the human population because water is our primary source of nutrients and survival.
Hope that helps.
how are faults foci and epicenters related
Fill in the blanks below to complete the hypothesis for this lab. It should answer the lab question, “What is the effect of molecule size on a molecule’s ability to diffuse across a semipermeable membrane?”
If molecules are small enough, then . . .
because . . .
Answer: See below
Explanation: If molecules are small enough, then they should have an easier time diffusing across a semipermeable membrane because smaller molecules can physically fit through or in between parts of a membrane that bigger structures may have to be actively transported through.
This is only true, however, if the molecule, membrane, and solvent do not interact because of polarity or proticity, which is not mentioned in the question so therefore should not be relevant.
Answer:
("then"): Molecules will diffuse through the semipermeable membrane
(“because”): they can pass through the membrane’s tiny openings
edge2023
What would the three amino acids be for this dna template: tacgatacc
leu-met-trp
met-leu-stop
trp-leu met
o met-leu trp
The three amino acids for this DNA template are Methionine, Leucine, and Tryptophan i.e. met-leu-stop.
To provide you with the correct amino acids for the given DNA template, I first need to identify the correct DNA sequence. It appears that there are some irrelevant terms in the provided sequence. Let's clean it up:
Corrected DNA sequence: TAC GAT ACC
Now, we can determine the amino acids by translating the DNA sequence into its corresponding mRNA sequence and then identifying the appropriate amino acids.
mRNA sequence: AUG CUA UGG
Amino acids: Methionine (Met) - Leucine (Leu) - Tryptophan (Trp)
So, the three amino acids for this DNA template are Methionine, Leucine, and Tryptophan.
It's important to note that the process of translation involves reading the mRNA sequence in sets of three nucleotides called codons. Each codon corresponds to a specific amino acid, as determined by the genetic code.
The start codon (AUG) initiates the translation process, and the subsequent codons code for specific amino acids until a stop codon is reached, indicating the end of protein synthesis.
So, therefore, the three amino acids for this DNA template are Methionine, Leucine, and Tryptophan i.e. met-leu-stop.
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What would the three amino acids be for this DNA template (tacgatacc)?
leu-met-trp
met-leu-stop
trp-leu met
o met-leu trp
Describe an example of a plant cell that is specialized for a specific function. What is special about the cell that allows it to perform this specific function?
A plant cell type that is specialized for a specific function is the mesophyll cells in the leaves, which contain many chloroplasts to perform photosynthesis.
What is cell differentiation?Cell differentiation refers to the specialization by which cells can perform specific functions.
Mesophyll cells in the plant leaves are specialized cells that contain chloroplasts, which are organelles where photosynthesis occurs.
In conclusion, a plant cell type that is specialized for a specific function is the mesophyll cells in the leaves, which contain many chloroplasts to perform photosynthesis.
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chapter test b elements and their properties
Answer:
Periodic Properties of the Elements
Atomic Radius.
Ionization Energy (ionization potential)
Electron Affinity.
Electronegativity.
Metallic Character.
Other Trends.
Redox Potentials. Oxidation Potential. Reduction Potential.
Uses in knowing the Periodic Properties of Elements.
Explanation:
here is your basics ans
Describe the purpose of the Nucleus in a cell / discuss the DNA structure inside of the nucleus and what is the job of DNA and how it ties
into genetics? Be as detailed as you can
The process by which individuals that are better suited to their environment survive and reproduce most successfully
Natural selection is the process by which the individuals who are basically more suited to the environment in which they are living also reproduce more successfully.
Natural selection is basically a mechanism of evolution which was suggested by Charles Darwin. According to him, the animals who are better adapted and better suited to the environment in which they live in, are selected by the nature, that is, they have a better chances of survival as compared to the animals who are not.
Individuals who are favored by natural selection also happen to reproduce more successfully as compared to the ones who are not.
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what protein attaches itself to a human cell, then reproduces and spreads to other cells?
There are many viruses that can attach to human cells, reproduce, and spread to other cells. Each virus has its unique set of proteins that it uses to attach and infect human cells.
Here are some examples:
- The human immunodeficiency virus (HIV) uses the protein gp120 to attach to the CD4 receptor on human immune cells, then it enters the cell and replicates, spreading to other immune cells and causing the disease AIDS.
- The influenza virus uses two types of proteins, hemagglutinin (HA) and neuraminidase (NA), to attach to and infect human respiratory cells, causing the flu.
- The coronavirus that causes COVID-19 uses the spike protein to attach to the ACE2 receptor on human respiratory cells, then it enters the cell and replicates, causing respiratory illness.
Each virus has its unique way of interacting with human cells and causing disease. Scientists are continually studying these viruses to better understand their mechanisms of infection and develop treatments and vaccines to prevent their spread.
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Which of the following describes sympatric speciation? A. when a new species arises within the current population due to behavior changes or mechanical issues B. when a new species arises that is a hybrid of two surrounding populations C. when a physical barrier is formed that separates a population and prevents gene flow between them
Sympatric speciation describes when there are no physical obstacles stopping any individuals of a species from mating with another and all members are near to one another
What two instances of sympatric speciation are there?There are two well-known instances of sympatric speciation in the real world. The growth of blue-versus-red cichlid fish in an African cichlid is the first thing to consider. Second, the apple maggot fly is now emerging while coexisting with their ancestor species, the hawthorn maggot fly.When there are no physical obstacles stopping any individuals of a species from mating with another and all members are near to one another, sympatric speciation takes place.Sympatric coexistence. a genetic modification that results in a reproductive barrier between the altered population (mutants) and the parent population, leading to the emergence of a new species.The complete question is Which of the following describes sympatric speciation? A. when a new species arises within the current population due to behavior changes or mechanical issues B. when a new species arises that is a hybrid of two surrounding populations C. when a physical barrier is formed that separates a population and prevents gene flow between them.D)When there are no physical obstacles stopping any individuals of a species from mating with another and all members are near to one another.
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.Diagrams depicting family relationships and phenotypes for a genetic disorder areA. linkage maps.B. pedigree charts C. genotype maps.D. Punnett squares.E. bell-shaped curves.
Diagrams depicting family relationships and phenotypes for a genetic disorder are pedigree charts. Here option B is the correct answer.
A pedigree chart is a diagram that depicts family relationships and the inheritance of a genetic disorder over several generations. It is used to trace the inheritance of a particular trait or disease within a family and can help to identify patterns of inheritance.
The chart typically includes symbols for males and females, as well as symbols to indicate the presence or absence of a particular trait or disorder. It also can indicate the genotype of the individual, whether they are carriers or affected by the disorder.
A linkage map is a diagram that shows the relative positions of genes on a chromosome, and the distance between them. A genotype map is a diagram that shows the genetic makeup of an organism.
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which statement best describe the relationship between the products of photosynthesis and the reactants in cellars respiration
Answer:
Photosynthesis products serve as a chemical energy suppliers for reactants and cellular respiration.
Since photosynthesis creates oxygen and oxygen needed for cellular respiration in the production of carbon dioxide and energy, carbon dioxide is used to generate plant energy and oxygen.
Explanation:
Photosynthesis products produce chemical energy by reacting to cellular respiration. Photosynthesis products interact to extract ATP from cells in cellular breathing reactants.
Photosynthesis products inhibit the reactants in the presence of light in cellular breathing.
compare the birth rate death rate and population growth rate for different regions world for science
The birth rate, death rate, and population growth rate vary greatly between different regions of the world.
How do the birth and death rates compare?In general, developed countries tend to have low birth rates and death rates, resulting in a slower rate of population growth
On the other hand, many developing countries have higher birth rates and death rates, leading to a higher rate of population growth
It's important to note that population growth rates can also be influenced by migration patterns and natural disasters, which can impact both birth and death rates.
Overall, the birth rate, death rate, and population growth rate are complex and interconnected factors that are influenced by a variety of social, economic, and environmental factors.
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Can you plz answer this that will be lovely thank you (:
Answer:
helium, lithium, boron,
Explanation:
sorry these are all I can think of right now
Which types of rocks can become metamorphic rock?
both igneous and metamorphic rock
both igneous and sedimentary rock
clastic sedimentary rock
clastic or chemical sedimentary rock
Answer: Your answer is ''Both igneous and sedimentary rock.''
Explanation: They both can form underground and at the surface.
Answer:
B
Explanation:
help meeeeeeeeeeeeeeeeeeeeeeeee
Answer:
Question is not presented
Explanation:
which enzyme works best in a very acidic enviroment? gastric or intestinal
Segments of chromosomes that contain coded información for an organism's traits are called?
A.Cells
B.Genes
C.Alleles
D.Genotypes
which energy pathway is dominant when the body is at rest or during low-intensity, long-duration activity? anaerobic glycolysis atp/cp oxidative energy pathway lactate
The energy pathway that is dominant when the body is at rest or during low-intensity, long-duration activity is the oxidative energy pathway.
The oxidative energy pathway, also known as aerobic metabolism, is the primary source of energy during rest and low-intensity activities. This pathway uses oxygen to break down carbohydrates, fats, and proteins to produce ATP (adenosine triphosphate), which is the main energy currency of the cell.
In contrast, anaerobic glycolysis and the ATP/CP pathway are more dominant during high-intensity, short-duration activities. Anaerobic glycolysis involves breaking down glucose without the presence of oxygen, producing ATP and lactate as byproducts. The ATP/CP pathway, on the other hand, relies on stored creatine phosphate (CP) in the muscles to regenerate ATP rapidly.
However, during low-intensity, long-duration activities, such as walking or light jogging, the oxidative energy pathway is favored due to its ability to produce a steady supply of ATP for a longer period. This pathway also helps to clear lactate, which can accumulate during high-intensity activities and lead to muscle fatigue.
In summary, the oxidative energy pathway is the dominant energy system at rest and during low-intensity, long-duration activities due to its efficiency in producing ATP for extended periods and its ability to utilize oxygen, carbohydrates, fats, and proteins as fuel sources.
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All of the following are factors in natural selection except…
A.) Competition with other organisms
B.) Environmental changes such as climate shifts.
C.) Technological advances in food production
D.) Organisms selecting advantageous trays among their mates to pass along traits to their offspring.
Answer:
C.) Technological advances in food production
Explanation:
Please answer In your own words.
Answer:
true
Explanation:
this is true, as many things that we accpet as truth are technically only theories. theories with many examples of them being true, but only theories nonetheless. for example, cell theory in biology is accepted as truth despite it being technically possible, allbeit extremely highly unlikely at this point, that we are wrong in some way about one or all of the facets of cell theory
Compared to a typical animal cell, the cell membranes on the paw of a polar bear would most likely have an increased concentration of which macromolecule?
Compared to the typical animal cell, the cell membranes on the paws of polar bears have increased concentration of unsaturated phospholipids.
Polar bears live in the artic circle. This region is characterised by cold, freezing temperatures. The extreme cold causes the cell membrane of animals living in this region to pack together and 'freeze' or stop moving, leading to frostbite.
In order to adapt to this kind of environment, the cell membrane on the paws of a polar bear is packed with unsaturated phospholipids. This enables the individual phospholipids to be spaced out, increasing fluidity in the cell membrane and making it less likely to pack together.
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Uranium can supply energy for the world's electricity without increasing greenhouse gases. Which of these statements best describes a benefit of uranium mining?
A: Fewer people are displaced by a uranium mine than other types of mines.
B: The rivers and streams around the mine are contaminated by runoff.
C: The regions near the mines get less electricity from uranium mining.
D: There is no measurable increase of air pollution near the mine.
Answer:
D. There is no measurable increase of air pollution near the mine.
Explanation:
I got it correct on the quiz, so you should too.
Uranium can supply energy for the world's electricity without increasing greenhouse gases, the statement that best describes a benefit of uranium mining is "There is no measurable increase of air pollution near the mine." Option D is true for uranium mining.
What is air pollution?
`
Air pollution can be caused by both natural and man-made processes, such as when man-made chemicals react with the air in the atmosphere, which can be fatal to biotic organisms. When harmful gases and chemicals mix with the air, that air is breathed by living organisms, causing problems with the lungs, breathing problems, and other organs as these chemicals travel in the body through the blood. The air pollution is harmful for the plants too, as it hampers the photosynthesis process.
Hence, the statement that best describes a benefit of uranium mining is "There is no measurable increase of air pollution near the mine." Option D is correct for uranium mining.
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A student records the outcome of an investigation in a table. Which best describes
the data in the table?
A: summary
B:conclusions
C:inference
D:results
Answer:
D
Explanation:
results is the only one that makes sense because results mean what you end up with
Answer:
D
results is the only one that makes sense because results mean what you end up with
Explanation:
The most common organisms on Earth have one cell/ more than on cells. (Circle which is true)
a gene fusion where the regulatory region of one gene is fused to the open reading frame of another gene whose protein product is easy to detect.a preferred sugar prevents transcription of a sugar-metabolizing operon.a protein that changes its conformation upon binding to another molecule, such as a repressor that binds toan inducer.stimulation of transcription by a specific molecule. prevention of gene expression by a specific protein that binds to an operator.a cluster of genes transcribed together into a single mrna and regulated as a group.premature termination of transcription in response to translation of an rna leader.an untranslated region at the 5' end of a bacterial mrna.a strain that synthesizes curtain enzymes regardless of environmental conditions.
A gene fusion where the regulatory region of one gene is fused to the open reading frame of another gene whose protein product is easy to detect reporter gene.
A gene created by combining sections of two different genes. Fusion genes and the fusion proteins that result from them can be created in the laboratory or naturally in the body when a piece of DNA from one chromosome moves to another. The most common type of mutation is gene fusions or translocations caused by chromosomal rearrangements. They result in chimeric transcripts or gene deregulation due to the juxtaposition of novel promoter or enhancer regions.
A reporter gene is an exogenous coding region that is linked to a promoter sequence or element in an expression vector and introduced into cells to provide a means of measuring promoter activity.
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what was used to dispute continental drift
Answer:
In the past, there were various pieces of evidence that were used to dispute the idea of continental drift, which is the theory that suggests that continents have moved over time. These pieces of evidence were put forward by scientists who did not believe in the concept of continental drift.
Explanation:
Here are a few examples:
Lack of Mechanism: One argument against continental drift was the lack of a known mechanism that could cause the continents to move. Scientists questioned how continents, which are large land masses, could shift and change their positions without any clear explanation.
Fixed Continents: Another argument was that continents seemed to be fixed in their positions. Scientists believed that the continents were immovable and had always been in their current locations. They argued that the shapes of the continents fit together like puzzle pieces simply because they happened to look that way, not because they were once connected.
Gravitational Forces: Some scientists proposed that gravitational forces were responsible for the arrangement of continents. They suggested that the distribution of land masses on Earth was due to variations in gravity, rather than the movement of the continents themselves.
Geological Stability: The stability of the Earth's crust was also used as evidence against continental drift. Scientists believed that the Earth's crust was rigid and could not undergo significant movements or changes in shape.
However, over time, new evidence emerged, such as the discovery of mid-ocean ridges and magnetic anomalies, which supported the theory of continental drift. This led to the development of the theory of plate tectonics, which explains how the Earth's lithosphere (crust and upper mantle) is divided into several large plates that move and interact with each other, causing continental drift and other geological phenomena.
Explain why the side shoots grow when the terminal buds are removed.
The answer you want is here: (It was answered before)
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The effects of molecules other than substrate on allosteric enzymes are called
The heterotropic effect is the effect of molecules other than substrate on allosteric enzymes.
What is the heterotropic effect?
The term "allosteric enzymes," which derives from the Greek "allo," which means "other," refers to enzymes that have a second site in addition to the active site. Enzymes can have many allosteric sites, which are these. They stand out because they can react to many circumstances in their immediate surroundings.Unrelated to the enzyme's substrate, a regulatory molecule is referred to as a heterotropic allosteric effector. The enzyme binds to can either be activated or inhibited by it.Carbon dioxide (\(CO 2\)) is an excellent example of a heterotropic allosteric effector because it also functions as an effector of hemoglobin but is not an enzyme-substrate.To learn more about allosteric enzymes refer to: https://brainly.com/question/13150990
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The sum total of the interactions of the variety of organisms in the biosphere is called:_________
The sum total of the interactions of the variety of organisms in the biosphere is called biodiversity.
The term "biodiversity" describes the wide range of organisms that are alive today, including flora, fauna, bacteria, and fungi.
The vast variety of life on Earth is referred to as biodiversity. It can be applied more precisely to all the species found in a given area or ecosystem. Every living creature, which include plants, microbes, animals, and people, is referred to as biodiversity. Around 8.7 million species of plants and animals are thought to exist, according to scientists. However, to date, only about 1.2 million species, the majority of which are insects, have been recognised and described. This means that the identities of millions of other organisms are still unknown.
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