Answer:
highly educated people
c. What were the first 200,000 years of the universe like?
Answer:
The early universe was tiny and fantastically hot, a searing cloud of energy and matter, much hotter than the interior of the sun.
Explanation:
Answer:
Explanation:
black and a bit pink
(probably)
A photographer wants to share her photos with people in other parts of the world. What are two reasons the photographer would choose a digital signal rather than an analog signal to share the photos? A. The digital signal moves gradually between an infinite number of values. O B. The digital signal could easily lose information because of noise over long distances. OC. The digital signal can be copied many times without losing quality D. The digital signal is less vulnerable to noise and more likely to arrive intact. help plsss
Answer:
did you ever find out the correct answer?
Explanation:
Answer:
The Digital signal is less vulnerable to noise and more likely to arrive intact
The Digital signal can be copied many times without losing quality.
Explanation:
ApE-x
Hope this helps.
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FILL IN THE BLANK. if a sperm cell contains 8 chromosomes, it comes from an animal that has ______ chromosomes.
If a sperm cell contains 8 chromosomes, it comes from an animal that has 16 chromosomes.
This is because the animal's sperm cells and egg cells (also known as gametes) contain half the number of chromosomes as the animal's somatic cells (also known as diploid cells). During fertilization, the sperm cell and egg cell combine to form a zygote, which contains the full complement of chromosomes for the animal. For example, a human sperm cell contains 23 chromosomes, and a human egg cell contains 23 chromosomes, for a total of 46 chromosomes in the fertilized egg.
Check all possible effects of this selective pressure.
Flock X may try to eat other foods.
Flock X could migrate in search of fruit.
Flock X could slowly decrease in number.
Flocks Y and Z could benefit and increase.
Flock X could try to mutate.
Answer:
Check all possible effects of this selective pressure.
✓ Flock X may try to eat other foods.
✓ Flock X could migrate in search of fruit.
✓ Flock X could slowly decrease in number.
✓ Flocks Y and Z could benefit and increase.
✕ Flock X could try to mutate.
Explanation: Got 100% on warm-up on edge. good luck :)
Answer:
A, B, C, D
Explanation: Big Brain
Please help me finding an information: why there is life on Earth
Answer:
It seems possible that the origin of life on the Earth's surface could have been first prevented by an enormous flux of impacting comets and asteroids, then a much less intense rain of comets may have deposited the very materials that allowed life to form some 3.5 - 3.8 billion years ago.
Explanation:
The infections that people get while they are in hospitals are commonly resistant to multiple drugs. What is a reason for the increased number of drug-resistant bacteria being found in hospitals?
Answer: The reason for the increased number of drug-resistant bacteria being found in hospitals is due to MISUSE and OVERUSE of antibiotics.
Explanation:
Antibiotics is a type of drug that attacks bacteria microorganisms either by killing or eliminating the bacteria (that is, bactericidal) or by preventing further growth of the bacteria (that is, bacteriostatic). Antibiotics should be taken properly while being used to treat any diseases condition to prevent drug resistance by the bacteria from occurring.
The reason for the increased number of drug-resistant bacteria being found in hospitals is due to MISUSE and OVERUSE of antibiotics. This causes the bacteria to change the way they respond to these medicines making them become antibiotic resistance. When they infect an individual, the infections they cause are harder to treat than those caused by non-resistant bacteria.
A ciliated version of pseudostratified columnar epithelium is called: __________
Respiratory tract refers to a ciliated variety of pseudostratified columnar epithelium.
What is ciliated pseudostratified columnar epithelium's alternate name?It is frequently referred to as pseudostratified columnar epithelium because it infrequently manifests as squamous or cuboidal epithelia. Pseudostratified ciliated columnar epithelium is seen in the illustration. The trachea and some other areas of the upper respiratory tract are lined by pseudostratified columnar epithelia. The respiratory epithelium is another name for the ciliated kind.
The name "ciliated pseudostratified columnar epithelium" refers to what?The term "ciliated pseudostratified columnar epithelium" refers to pseudostratified columnar epithelial tissue that has cilia on the surface. On the apical surface of these epithelial cells, cilia of various lengths are visible.
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Natural selection is operating as an evolutionary mechanism on this chipmunk population. The
chipmunks that are most likely to survive and reproduce can be found in which cross section on the
graph?
Due to natural selection, Chipmunks are most likely to survive in cross-section iii.
Natural selection is a fundamental mechanism of evolution that drives the adaptation and diversity of living organisms. It is a process by which certain heritable traits become more or less common in a population over successive generations based on their impact on reproductive success.
The concept was first proposed by Charles Darwin and is central to his theory of evolution by natural selection. The process of natural selection involves three key components: variation, heritability, and differential reproductive success.
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Your question is incomplete, most probably the full question is this:
Natural selection is operating as an evolutionary mechanism in this chipmunk population. The Chipmunks that are most likely to survive and reproduce can be found in which cross-section on the graph?
The image is attached below.
an aabb organism produces the following gametes: ab 25% ab 25% ab 25% ab 25% are a and b on the same chromosome? why?
Genes A and B are not on the same chromosome.
The law of independent assortment is one of the laws of inheritance that describes the way different genes independently separate from one another when reproductive cells develop. When two or more characteristics are studied, the law of independent assortment helps to determine the proportion of traits produced by different gametes. Chromosomes do not assort independently if they are linked.
If genes are closely linked on a chromosome, they may have a higher chance of being inherited together. When genes are unlinked, they will assort independently, and the gamete frequency is an indicator of their independence. If genes are on the same chromosome, they will tend to stick together when crossing over occurs, making the gamete frequencies of each kind non-equal. Chromosome structure and the frequency of recombination are the most important factors that influence linkage.
Therefore, it can be concluded that genes A and B are not on the same chromosome.
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1. Name two weeds which compete for food, space and light with the main crop.
2. Give one advantage of building small check dams to stop the rain water from flowing away.
Answer:
1. Xanthium and Wild Oats.
2. The main purpose of check dams is to reduce water velocity and to trap sediments in gullies and streams instead of adding additional soil material being eroded away.
Explanation:
Describe what happens to carbohydrates in the human body between ingestion and assimilation in the liver.
Carbohydrates are broken down into glucose, absorbed by the small intestine, transported to the liver, and used for energy or stored as glycogen or fat depending on the body's needs.
Insulin is a hormone produced by the pancreas that regulates the amount of glucose in the bloodstream. If there is a high amount of glucose in the bloodstream, insulin will signal to the liver and muscle cells to absorb and store the excess glucose. If there is a low amount of glucose in the bloodstream, glucagon will signal the liver to break down the stored glycogen into glucose and release it into the bloodstream to be used for energy.
When carbohydrates are ingested, they are digested in the mouth and stomach. The carbohydrates are broken down into glucose. The glucose is absorbed by the small intestine. The glucose is then transported to the liver.
The glucose is used for energy and stored as glycogen in the liver and muscles for later use. If there is an excess of glucose, it will be stored as fat in the adipose tissue.
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What are other consequences of wolf introduction that have been good for the humans in Yellowstone National Park?
Answer:
New research shows that by reducing populations and thinning out weak and sick animals, wolves have a role in creating resilient elk herds. Wolves and black-billed magpies scavenge at a dump where carcasses are stored in Yellowstone National Park.
Explanation:
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a scientist creates fruit fly larvae with a mutation that eliminates the exonuclease function of dna pol iii. which prediction
A scientist creates fruit fly larvae with a mutation that eliminates the exonuclease function of DNA Pol III. This prediction would be that: the fruit fly larvae would be unable to remove incorrect nucleotides during DNA replication.
This leads to errors in their genetic code. This could result in genetic disorders or other issues with the organism. Exonuclease is an enzyme that is used during the process of DNA replication. DNA Pol III is a type of polymerase enzyme responsible for adding nucleotides to the growing strand of DNA.
When the exonuclease activity of DNA Pol III is eliminated, it is unable to remove incorrect nucleotides from the growing strand, leading to errors in the DNA sequence. This can lead to issues such as genetic disorders, and even death of the organism.
The scientist’s prediction is that the fruit fly larvae with the mutated DNA Pol III enzyme will be unable to remove incorrect nucleotides, leading to errors in the DNA sequence and possibly genetic disorders or other issues with the organism.
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In 3-5 sentences, describe the advantages and disadvantages of using these two different images to model Mitosis.
The advantage of the first model is it used less space for showing stages of mitosis whereas the disadvantage of using this model in Mitosis is that it does not provide detailed information.
What is mitosis cell division?Mitosis is a process of cell division in cells that occurs when a parent cell divides to form two identical daughter cells. During this cell division, diploid daughter cells are produced from a single parent cell while on the other hand, meiosis is a process of cell division in cells that happens when a parent cell divides to form four identical daughter cells. Meiosis refers to the formation of four cells from a single parent having haploid chromosomes. The advantage of the first model is that it provides stages of mitosis by using less space whereas the disadvantage of using this model Mitosis is that it does not provide detailed information. The advantage of the second model is that it does not provide detailed information whereas the disadvantage of using this model of Mitosis is that it provides stages of mitosis by using less space.
So we can conclude that the advantage of the first model is the disadvantage of the second model and vice versa.
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The main disadvantage of using the first image to model mitosis is the presence of other stages of the cell cycle (e.g. the S phase). Moreover, the disadvantage of using the second image to model mitosis refers it involves meiotic division (meiosis II division) instead of mitosis.
What is the mitosis process?The expression of the mitosis process makes reference to this type of cell division which is characterized to form two daughter cells with identical genetic material when compared to the parental cell.
In contrast, meiosis divides to half the amount of genetic material in the resulting daughter cell as occurs in the second image.
Therefore, with this data, we can see that the mitosis process is the cell division for which a cell generates two daughter cells that exhibit identical genetic material when compared to the parental cell, conversely to meiosis where this number is reduced to half.
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In an experiment, a researcher prepares a reaction mixture by dissolving a substance in a buffered solution. The substance is the substrate of a certain enzyme. The researcher adds a small amount of the enzyme to the reaction mixture and measures the amount of product that is formed over time. Which of the following best predicts the immediate result of adding more substrate to the reaction mixture at the point indicated by the arrow in Figure 1?
answer choices
The amount of product will decrease until the reaction rate goes to zero.
The amount of product will increase until the reaction reaches its equilibrium point or until the substrate is used up by the reaction.
The amount of product will increase without stopping because the enzyme will be unchanged by the reaction.
The amount of product will decrease until the reaction reaches its equilibrium point or until the enzyme is been used up by the reaction
Until equilibrium is reached or all of the substrate has been eaten, the amount of product will continue to increase.
How can the rate at which an enzyme-catalyzed reaction occurs be determined?It is possible to identify enzyme catalysis by measuring the appearance of the product or the disappearance of the reactants. The same reactants may be used in a reaction, but a different catalyst may produce different results.
Which of the following would speed up how quickly reactants turn into products in a chemical reaction?The more the temperature rises, the more crashes occur. As a reactant's concentration rises, the likelihood of reactant collisions increases as well, accelerating the rate of the reaction.
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How is the transcription start site determined in bacteria?.
Answer:
by the binding of RNA polymerase to the consensus sequences of the promoter
Explanation:
BTW: a promoter is a DNA Sequence on to which transcription machinery bind and initiate transcription .
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10 POINTS
help pls this is due in 7 minutes
Answer:
C. The ball is Earth, the pole is the Sun, and the rope is the force of gravity.
Why do scientists not classify viruses as being alive?
They require a host cell to replicate in
Viruses cannot evolve over time
They do not have their own DNA or RNA
Which protists obtain their energy from absorbing the nutrients of decaying matter? fungi-like protists
animal-like protists
plant-like protists
all of the above
fungi-like protists
fungi breaks down decaying matter
Rain clouds moving from west to east are blocked by a mountain range and cause rain only on the western side. This makes the climate on the western side rainy and the eastern side dry. Which of these Earth systems interact to produce this difference in climate? (3 points)
Group of answer choices
biosphere, cryosphere, and geosphere
geosphere, cryosphere, and atmosphere
cryosphere, atmosphere, and hydrosphere
atmosphere, hydrosphere, and geosphere
Answer:
answer is atmosphere, hydrosphere, and geosphere
All stars
reflect light from the sun.
b. appear to wander off their star paths.
a.
c. produce their own light.
d. All of the above.
Answer:
option c. produce their own light.
Please select the phase that is not a part of Cellular Respiration
Glycolysis
Electron Transport Chain
Krebs Cycle
The Calvin Cycle
None of the Above
Answer:
The Calvin Cycle
Explanation:
The three stages of respiration are glycolysis, the Krebs cycle, and the electron transport chain. These processes generate ATP by breaking down glucose.
The Calvin cycle is part of the light-independent reactions of photosynthesis, not cellular respiration. Photosynthesis creates sugars from the energy in sunlight.
Which of the following is the most important factor limiting population growth under the logistic growth model? Per-capita birth and death rates The size of the population The carrying capacity of the environment Changes in abiotic conditions
Under the logistic growth model, the most important factor limiting population growth is "the carrying capacity of the environment".
The carrying capacity refers to the maximum number of individuals that a given environment can sustainably support over a long period of time, taking into account the availability of resources and other factors that influence population growth.
As a population approaches its carrying capacity, competition for resources increases, and per-capita birth and death rates may change.
However, the carrying capacity ultimately determines the maximum population size that can be sustained in the long run.
Changes in abiotic conditions, such as temperature or precipitation, can certainly affect population growth, but these factors are typically considered to be outside of the control of the population itself and are thus not typically included in models of population growth.
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If the concentration on the inside of a cell is 5% and the concentration on the outside of a cell is 6%, what is true ?O A. The solution is hypotonicO B. none are correct• C. The solution is isotonicO D. The cell will under go hemolysisO E. The solution is hypertonic
If two solutions have the same solute concentration, they are considered isotonic.
If one solution has a higher concentration of solutes with respect to another one, then this solution can be considered hypertonic.
If one solution has a lower concentration of solutes with respect to another solution, then this solution can be considered hypotonic.
The tonicity of the solutions measures the effective osmotic pressure gradient and is relative to the concentration of solutes that do not move freely through the semipermeable membrane. If you consider two solutions separated by a biological membrane, like the cell membrane, the net movement of water between both compartments will be determined by the osmotic pressure, it will diffuse from the compartment with lower tonicity to the compartment with higher tonicity.
In this case, the concentration inside the cell is 5% and the concentration outside the cell is 6%, then the solution found within the cell can be considered hypotonic with respect to the extracellular solution.
Due to the osmotic pressure, the water will diffuse out of the cell. This process will cause the cytoplasm volume to decrease, and the cell will suffer a process called Crenation.
The correct option is E. since the intracellular solution is hypotonic with respect to the extracellular solution.
All living things are made of matter- the smallest unit of: ____
Answer:
particles called cells
Explanation:
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what is organism definition biology?
What is incorrect or missing in these two graphs
In first graph, the age of 15 to 20 has more increament then the age of 20-24.
Why is the number of rate increases ?More twins are being born now than ever before mainly because of the rising use the IVF and more people starting their families later in life. The rate of twin birth may now as its peak , though due to fertility clinics refining their techniques.
Compared to 1980, when 1 in every 53 babies were born in the United States, one in every thirty births were twins in 2009.The twin birth rate increased by 76% between 1980 and 2009, from 18.9 to 33.3 per 1,000 live births.There would have been about 865,000 fewer twin births in the United States over the past three decades if the rate of twin births had remained constant since 1980.The vast majority of states and the District of Columbia saw increases in twinning rates of at least 50%.Over the three decades, the rates of twin birth increased by more than 200 percent among women over 40 and by almost 100 percent among women aged 35 to 39.To learn more about Twins rate refer
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what is meant by 1 kg. mass?define
Answer:
noun. a unit of mass equal to 1,000 grams: the basic unit of mass in the International System of Units (SI). Up until 2019 the kilogram was defined as equal to the mass of an international prototype, a platinum-iridium cylinder kept in Sèvres, France.
Answer:
it means a matter of 1kg that does not have an acceleration due to gravity.
Explanation:
The food pyramid is shaped the way it is because of the _________ at the base
18 Which characteristic below is NOT used to separate molecules during gel electrophoresis?
(1) boiling point
(2) charge
(3) shape
(4) size
Answer: (1) boiling point.
Explanation: Gel electrophoresis is a technique used to separate DNA fragments (or other macromolecules, such as RNA and proteins) based on their size and charge. Electrophoresis involves running a current through a gel containing the molecules of interest. The molecules will move faster or slower based on their size and electric charge. Smaller molecules move faster and migrate farther than larger ones because they can pass through the pores of the gel more easily. This phenomenon is called sieving. Similarly, molecules with a higher charge will move faster and migrate farther than molecules with a lower charge because they are more attracted to the opposite electrode.
Boiling point is not a characteristic that affects the separation of molecules during gel electrophoresis because it is not related to the size or charge of the molecules. Boiling point is the temperature at which a liquid becomes a gas, which depends on factors such as intermolecular forces, pressure, and molecular weight. Boiling point does not affect how fast or far a molecule moves in an electric field. Therefore, it is not used to separate molecules during gel electrophoresis.
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