Answer: The struggle for existence
Explanation:
This struggle for existence / competition can also be known as a selection pressures
Please Help ASAP(100 Points And Brainleist)
Answer:
INPUTS: glucose,oxygen.
OUTPUTS: carbon dioxide,water,ATP
erm about the four processes- i don't know bout that one but i hope these ones help!!!
There are 30 players on each high school football team.Explain how you can find the total numbers of players if there are 40 teams.write and solve an equation.
There are 30 players on each high school football team, so, the total numbers of players are 1200 if there are 40 teams
What does a football team mean?It is usually understood that the term "football" (or "foot ball") refers to the motion of the foot kicking a ball. An alternate interpretation is that football originally referred to a range of sports performed on foot in Medieval Europe.
A football team is a collection of players who have been chosen to play together in different football team sports.
In most circumstances, high school teams will include between 40 and 50 players. As players grow more specialized, playing solely offensive or only defense, a higher roster size is required.
Given that,
There are 30 players on each high school football team, if there are 40 teams, then total numbers of players, (30 × 40) = 1200 players.
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Which term means "a feature of
an organism's body that helps it
survive and reproduce"?
Behavioral
Anatomical this is the answer
Answer:
• Anatomical adaptation: a feature of an organism's body that helps it survive and reproduce.
Explanation:
Answer: Anatomical
Explanation:
Pick out the sentences that correctly describe marine mammals. There can be more than one.
Marine mammals are endothermic, or warm-blooded. Species such as whales breathe air though their gills. They have a thick layer of blubber that helps maintain buoyancy. They can stay underwater indefinitely. Dolphins are a type of toothed whale. Baleen whales feed on large fish and sometimes seals.
4. A car of mass 800 kg accelerates from 5m / s to 25m / s in 10 s. a) Calculate the acceleration. b) Calculate the resultant force exerted.
Answer: To calculate the acceleration of the car, we can use the equation:
acceleration = (final velocity - initial velocity) / time
Plugging in the values given in the question, we get:
acceleration = (25 m/s - 5 m/s) / 10 s = 2 m/s^2
To calculate the resultant force exerted on the car, we can use the equation:
resultant force = mass * acceleration
Plugging in the values given in the question, we get:
resultant force = 800 kg * 2 m/s^2 = 1600 N
This is the force that must be exerted on the car to accelerate it from 5 m/s to 25 m/s in 10 s.
A) As, the accelerarion equation is V - U/t
so its 25-5/10 so its 2m/s^2
B) With the above answer in A) we can calculate the force with the equation f = m * a
so , 800*2 = 1600N
In humans, free ear lobes are dominant to attached ear lobes. If a child has the heterozygous genotype for this trait, what phenotype will be expressed?
HELP IM ON LIMITED TIME
Scientists use bacteria to study natural selection because they
reproduce very quickly. After doing thousands of experiments and
collecting a lot of data, a scientist says "The type of bacteria that
survives and reproduce will pass on their traits to their offspring."
This statement is an example of a(n)
Select one:
Theory
Law
Observation
Hypothesis
Answer:
This statement is an example of a hypothesis.
Explanation:
This statement is an example of a hypothesis. A hypothesis is a proposed explanation for a phenomenon. It is based on observations and can be tested through further experimentation. In this case, the scientist is proposing a hypothesis about the relationship between the traits of bacteria and their ability to survive and reproduce. This hypothesis can be tested through further experiments to see if it holds true.
When an individual exercises vigorously for more than 15 minutes, the muscle cells are unable to obtain oxygen from the blood quickly enough. As a result, the muscle cells
A.
Answer:
activate anaerobic respiration, producing lactic acid build-up.
Classify these sequences based on their potential to modify protein products. The plain letters in the sequences represent protein coding regions, and the bold letters represent noncoding regions.
TACCTTAATT → TACCTTAATTATT
GAGACCGT → GAGACCAGT
TACCTTAATT → TACCTTAATT this is the based on their potential to modify protein products. The plain letters in the sequences represent protein coding regions, and the bold letters represent noncoding regions.
We can see that the first and second sequences for this item are exact duplicates of one another. With this knowledge, we may thus presume that the protein has not been altered.
What is Coding regions ?The section of a gene's DNA or RNA that codes for protein is referred to as the coding area of a gene, also known as the coding sequence.
The section of a gene's DNA or RNA that codes for proteins is referred to as the coding region of a gene, often known as the coding sequence (CDS).
A gene's coding region, which is made up of all of its exons, is the portion of the gene that will ultimately be transcribed and translated into protein. Introns, or areas that are removed during RNA splicing and discarded, are interspersed throughout the remaining portion of the gene.We can see that the first and second sequences are exact duplicates of one another. With this knowledge, we may thus presume that the protein has not been altered.I'm not sure if the region that was lost in the second sequence (ATT) is a noncoding region.Yo know more about Coding regions please click here : https://brainly.com/question/11355655
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explain how the following processes are impacted by the insulin/glucagon system glucose transport all tissues g
When blood sugar is too low the pancreas releases glucagon. Glucagon directs the liver to release stored glucose increasing blood sugar levels in the body.
Like a lock on a lock, insulin binds to cell surface receptors and directs GLUT4 molecules to the cell surface. As the name suggests, glucose transport proteins act as vehicles for the uptake of glucose into cells. The two hormones counterbalance each other to stabilize blood glucose.
Insulin inhibits gluconeogenesis and glycogenolysis stimulates glycolysis and gluconeogenesis and transfers amino acids Stimulates uptake and uptake inhibits proteolysis stimulates lipogenesis and inhibits lipolysis. Glucagon keeps blood sugar from getting too low while insulin is produced to keep blood sugar from getting too high.
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Please help no wrong answer!!
Should medical information ever be withheld from a patient? If so, when and why?
The psychosocial approach focuses on the biological and environmental elements of a person to help
improve his or her relationships, both personal and interpersonal. Some of the therapeutic approaches or
theories related to the psychosocial approach include group analysis, family counseling, socio-ecological
theories, and
substance abuse treatment.
free association
crisis interventions
participant observation
The psychosocial approach focuses on a person's biological and environmental components to assist them have better personal and interpersonal connections.
What is a psychosocial approach?The relationship between intrapersonal psychological factors and external factors is a component of a psychosocial approach to human behaviour. The conventional definition of psychosocial features is the psychological growth of a person in connection to his or her social and cultural surroundings.Psychosocial theories focus on the pattern changes in ego development that occur throughout a person's life, including self-understanding, identity formation, social interactions, and worldview. The psychosocial theories contend that continual interactions between people and their social settings are what lead to development.Societies are set up to direct personal development toward a specific ideal of full adulthood through their structures, rules, roles, rituals, and consequences. When a society tries to strike a balance between the demands of the individual and the requirements of the group, however, issues inevitably arise.To learn more about Psychosocial theories refer :
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The mechanism by which antigen-reactive cells respond to foreign antigens while ignoring self-antigens is called clonal
A) selection.
B) deletion.
C) anergy.
D) expansion.
A) selection antigen-reactive cells respond to foreign antigens while ignoring self-antigens is called clonal.
What examples exist of self-antigens?Microproteins, nucleic acids, carbohydrates, and lipids are a few examples of self-antigen indicators.Self-antigen markers serve to stop the immune system from attacking bodily cells that it is defending.
What do you name a self-antigen?These elements, which go by the names autoantigens or self-antigens, primarily consist of proteins (or proteins complexed to nucleic acids).Autoantibodies and autoreactive T cells are the terms used to describe antibodies and T lymphocytes that identify autoantigens.
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Determine an approximate interval width for a random sample of 110 observations that fall between and include: A. 20 to 85 B. 30 to 190 C. 40 to 230 D. 140 to 500.
It is defined as the difference between the upper-class limit and the lower class limit. Class Interval = Upper-Class limit – Lower class limit.
What is an approximate interval?If you know the exact distribution of the test statistic, and use that distribution's quantiles to make confidence intervals, that interval is exact. If you approximate the distribution of the test statistic, then the interval is approximate.The Empirical rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean . The empirical rule is further illustrated belowThe Empirical Rule states that, for a normally distributed random variable:68% of the measures are within 1 standard deviation of the mean.95% of the measures are within 2 standard deviation of the mean.99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
68% of data falls within the first standard deviation from the mean.95% fall within two standard deviations.99.7% fall within three standard deviations.From the information given, the mean is $150 and the standard deviation is $20.2 standard deviations = 2 × 20 = 40
150 - 40 = $110
150 + 40 = 190
Therefore, about 95% of the monthly food expenditures are between $110 and $190
Mean = 150
Standard deviation = 20
95% of the monthly food expenditures are between what two amounts:By the Empirical Rule, within 2 standard deviations of the mean150 - 2*20 = $110
150 + 2*20 = $190
$110 and $190
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take a position on the existence of a priori knowledge referencing relevant rationalist and empiricist philosophers.
A sort of epistemic justification known as a priori justification is in some ways independent of experience.
What does philosophy mean by a priori knowledge?Since Immanuel Kant, a posteriori knowledge—which is obtained through experience—has been contrasted with a priori knowledge, which is information that is learned independently of any particular experience.
Do rationalists think that knowledge is known beforehand?In the area of epistemology, or the theory of knowledge, where its claims are most clear, rationalism maintains that at least some human knowledge is acquired through a priori (prior to experience), or rational, insight as opposed to sense experience, which all too frequently offers a confused and merely tentative approach.
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Compare and contrast the boundaries that plant, animal, and bacteria cells use to seperate themselves from their surrounding enviroments
In animal cells, the plasma membrane's external side comes into touch with the extracellular space. While bacteria's cell wall is formed of peptidoglycan, plants' cell walls are composed of cellulose.
What are the differences in the cell borders between animal and plant cells?Animal cells are eukaryotic cells with a nucleus that is membrane-bound. In a number of crucial ways, they vary from plant cells. These cells are devoid of plastids, a cell wall, and other cellular organelles.
Bacteria lack a nucleus and organelles that are attached to membranes because they are prokaryotic. A nucleus and membrane-bound organelles like the mitochondria or golgi apparatus are present in eukaryotic cells, which are what make up plants and animals.
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If one ounce is approximately equal to 28 grams, then one pound is approximately equal to
a. 250 grams
b. 350 grams
c. 450 grams
d. 550 grams
e. 650 grams
One pound will be approximately equal to = Option c) 450 grams
An ounce is considered the value for calculating mass in the imperial method of measurement
The value of one ounce is approximately equal to = 28.3495 grams
Same as in the case of pounds,
1 pound = 16 ounces
As we have seen that the value of an ounce is approximately 28 grams so calculating one pound in grams
= 16 x 28.3495
= 453.592 grams
= approximately 450 grams
Therefore, one pound is approximately equal to = 450grams
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Question 3 of 10
RNA is a type of nucleic acid that is responsible for
transporting and using the information stored in DNA.
What aspect of RNA's structure makes it ideal for carrying out this role in an
organism?
OA. Its single-stranded structure, which allows it to easily copy the
pattern of bases in one strand of DNA
OB. Its hydrocarbon chains, which help the molecule repel harmful
substances
C. Its highly branched structure, which helps the molecule store a lot
of energy in a compact space
OD. Its long, narrow shape, which helps it pack tightly with other RNA
molecules
Similar to DNA, each strand of RNA has the same fundamental structure, which is made up of nitrogenous bases bonded covalently to a sugar-phosphate backbone. RNA is typically a single-stranded molecule, in contrast to DNA.
Do mRNA and tRNA have one strand?
A tRNA is created from a single strand of RNA, like the one modelled below (just like an mRNA is). Base pairs do, however, occur between nucleotides in various regions of the molecule, giving the strand a complex 3D shape.
Transcription
Making an RNA copy of a gene's DNA sequence is a process known as transcription in the context of genomics. The messenger RNA (mRNA) copy carries the DNA-encoded protein information for the gene.
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Need help, please and thank you! ☃️❄️️
The bonds that are cleaved for the transfer of the genetic information is bon Z.
What is the DNA?The term DNA is the acronym that stands for deoxy ribonucleic acid. This is the molecule that holds the genetic information of the living things. We know that the genetic information of the living things is held in the chromosomes and the genes are the specific location where they are found. Yet the genes in themselves are composed of the DNA molecule and it is this molecule that helps in the copying of genetic information.
We know that during cell division, there is the copy of genetic information from the parent cells to the daughter cells and this is achieved by the cleavage of some of the bonds that can be found in the DNA molecule as these are responsible for the transfer of the said genetic information.
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Which of the following equation correct represents the exponential population growth curve? A) dN/dt=rN; B) dN/dt= rN(K-N/K); C) Nt=N0et; D) both A and C
The correct equation is B) dN/dt= rN(K-N/K) as it correctly display the exponential population growth curve.
This is maximum usually proven in differential shape as: dN/dt = rN((K – N)/K), wherein dN/dt (e.g., the price of alternate in populace length, N, at a given second in time, t) is a feature of the modern length of the populace (N) and the intrinsic or on the spot price of alternate (r).
The components of exponential growth is dNdt=rNdNdt=rN wherein is the price of alternate in populace length, r is the biotic capability and N is the populace length. Exponential boom is represented with the aid of using the equation dN/dt = rN. In this equation, dN/dt is the boom price of the populace in a given instant, N= populace length, t is time, and r is the in line with capita price of increase, that is, how speedy the populace grows in line with man or woman already withinside the populace.
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Which phrase correctly describes a chromosome?
folded proteins
segments of DNA
tightly wound DNA
fragments of proteins
What limiting factor appears to determine the carrying capacity of kelp in a marine ecosystem that is based on this food chain? How can you tell?
The limiting factor is the number of species that is used as food for the Kelp population.
What is the limiting factor?We know that the limiting factor has to do with the factors that influence the availability of organisms in the ecosystem. We can now now realize that the carrying capacity is influenced by the number of the organisms in the ecosystem.
As such the carrying capacity is determined by the number of the organisms that are found. This is clear from the observation of the food chain that is in the marine ecosystem.
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starvation would cause which of the following acid-base conditions? also, determine what type of compensation (metabolic or respiratory) there would be
Option c is the appropriate response. With respiratory compensation, acid-base conditions caused by starvation would result in metabolic acidosis.
Respiration and metabolism are interdependent. Metabolic compensation and respiratory acidosis or alkalosis go hand in hand. Similar to metabolic alkalosis, respiratory compensation is related to metabolic acidosis. Within cells, a process known as cellular respiration uses enzymatic pathways (such as glycolysis and the Krebs cycle) to break down glucose, releasing water, carbon dioxide, and ATP in the process. Direct responses to metabolic demands are made through respiration. The lungs carry out a number of metabolic processes, such as gas exchange, the inactivation of vasoactive chemicals, the conversion of angiotensin I to angiotensin II by the angiotensin-converting enzyme (ACE), and protein synthesis.
Therefore, we can conclude that Option C is the proper response. Acid-base conditions brought on by hunger would lead to metabolic acidosis with respiratory correction.
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Complete Question:
Starvation would cause which of the following acid-base conditions? Also, determine what type of compensation (metabolic or respiratory) there would be.
A. respiratory acidosis with metabolic compensation
B. respiratory alkalosis with metabolic compensation
C. metabolic acidosis with respiratory compensation
D. metabolic alkalosis with respiratory compensation
Which of the following statements are true regarding types of stem cells
I. Totipotent stem cells can only become tissues of the body
II. Multipotent stem cells are found in adults and stay dormant until needed
III. Meristematic stem cells are only found in plants
IV. Pluripotent stem cells can become tissues of the body and the placenta
A. II, III, and IV
B. II and III
C. II and IV
Answer:
Explanation:
A
multipotent (able to give rise to multiple cells within a lineage), pluripotent (able to give rise to all cell types in an adult) and totipotent (able to give rise to all embryonic and adult lineages
Which two phrases describe characteristics of a valid hypothesis?
A. Makes a claim that is testable
B. Must be proven true by scientific evidence
C. Is written in the form of a question
D. Answers a scientific question
Fossils give evidence about organisms that lived a long time ago.
(a) Scientists have found very few fossils of the earliest site lowes
Give one reason why.
Answer:
Since life was not large back, like, you know, 3 billion years ago, there won't be many if any visible fossils since they didn't exist. According to the evolution of life, for many million years the earth was populated with only single celled organisms.
Explanation:
Nitrogen is part of many important substances in living organisms. Distinguish between transcription and translation.
A. DNA transcription AND mRNA translation, B. transcription creates RNA AND translation creates polypeptides or proteins, C. RNA polymerase is only used in transcription and ribosomes are only used in translation.
What kind of example of organisms?A living species that possesses all the characteristics of life is often referred to as an organism. These can take the form of a microorganism, insect, bird, plant, or even a mammal. Numerous diverse species of life number in the billions or trillions on our planet Earth.
Which creatures are present in people?Millions of little living things, collectively known as the human microbiota, live inside each and every cell of the body. In the mouth, nose, and skin, bacteria are microscopic organisms.
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6. In which one of the following situations would you observe signs of fermentation first? a. a flask with dried yeast only in a warm room (20 °C) b. a flask with dried yeast and water in a warm room (20 °C) c. a flask with dried yeast, water and sugar in a refrigerator (4 °C) d. a flask with dried yeast, water and sugar in a warm room (20 °C)
The suggested hypothesis is that fermentation may be to blame for the rise in lactate levels.
What are the different capacities a bacteria will have?Bacteria with the capacity to utilize a variety of carbohydrate sources create lactic acid through the fermentation process. The primary bacteria utilised to create lactic acid are lactic acid bacteria, and among these, Lactobacillus spp. have demonstrated intriguing fermentation abilities.
Lactic acid fermentation was a consequence of a deficiency in oxygen inside the muscle cells. This is because oxygen is required by the cell as a terminal electron acceptor in order to make ATP.
Therefore, The suggested hypothesis is that fermentation may be to blame for the rise in lactate levels.
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In a study of hypoglycemic shock, cellular changes in
the brain are analyzed. One cell type in the hippocampus is
noted to exhibit intense cytoplasmic eosinophilia, central chromatolysis,
spheroidal swellings, and nuclear pyknosis. These
changes appear 12 hours after blood glucose levels drop below
20 mg/dL. What is this cell type most likely to be?
A Astrocytes
B Endothelial cells
C Microglia
D Neurons
E Oligodendroglia
The cell type most likely to be affected is astrocytes.
Blood-brain barrier is network of blood vessels and tissue made up of closely spaced cells. It is made up of astrocyte perivascular feet and capillary endothelial cells.
Astrocytes are the most abundant cells in the central nervous system that twine around nerve cells supporting the brain and spinal cord. They perform many functions; such as providing the neurons with nutrients, control the blood brain barrrier and blood flow. Astrocytes are basically responsible for maintaining the central nervous system homeostasis.
The purpose of the blood–brain barrier is protection from circulating toxins or pathogens that can cause brain infections, and allowing vital nutrients to reach the brain.
Therefore, the cell type most likely to be affected is astrocytes.
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explain how human activities contribute to the increase and decrease of carbon and impact global climate.
Answer:
Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere.
the amount of carbon dioxide in the atmosphere is rapidly rising; it is already greater than at any time in the last 3.6 million years.
Using public transportation, carpooling, biking, and walking leads to fewer vehicles on the road and it also leads to less greenhouse gases in the atmosphere.
The vehicles you see on the road, air and water get power through fossil fuels. When they burn these, it releases a number of pollutants including carbon. This hampers the air and water quality and it also raises the temperature of the earth.
Explanation: