many gene sequences that are involved in gene regulation contain a conserved sequence. this means that:
Answers
Many gene sequences that are involved in gene regulation contain a conserved sequence this means that, the conserved sequence that have same gene sequence can be present in the variety of organism they can be same or different species.
The conserved sequence means a base sequence in the DNA that cannot be changed throughout evolution. This means that the large protein structure, amino acids, sequence region were identified.
The conserved sequence of the DNA does not code protein, these are non-coding region of the DNA sequence. These conserved sequence required for the basic cellular stability, function and reproduction.
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Related Questions
Carbon 12 is the most common isotope of action and has mas number of 12. However, the average om mass of carbon found on a periodic table is the more than 12 tons Why? The tom does not include the mass of electrons Some carbon stores in uwe have an extra proto Some Carbon atominature have more on Some Carbonminne
Answers
Carbon 12 is the most common isotope of carbon with a mass number of 12. However, the average atomic mass of carbon found on the periodic table is more than 12 tons. This is because of the following reasons: The tom does not include the mass of electrons.
This is because electrons are much lighter than the other subatomic particles, and their mass is not considered in the calculation of the atomic mass of an element. Some carbon stores in uwe have an extra proto. Carbon 12 is the most abundant isotope of carbon and has six protons and six neutrons in its nucleus. However, some carbon atoms have an extra neutron or two, making them isotopes of carbon. The presence of these isotopes in nature accounts for the slightly higher atomic mass of carbon found on the periodic table.
Some Carbon atominature have more on. Some carbon atoms have more than six neutrons in their nucleus, making them heavier isotopes of carbon. These isotopes are much less abundant in nature than carbon-12, but they do exist and contribute to the average atomic mass of carbon found on the periodic table. Some Carbonminne. Carbon has a few isotopes such as Carbon-12, Carbon-13, and Carbon-14. Of these, Carbon-14 is unstable and radioactive, and Carbon-13 is stable and non-radioactive.
They are not found in equal abundance, but the contribution of their presence to the atomic mass is also responsible for the slightly higher atomic mass of carbon found on the periodic table.
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Where are the tectonic plates located?
Answers
Answer:
The outermost part of Earth's structure is known as the lithosphere. The lithosphere consists of the crust and small portion of the upper mantle. The lithosphere is divided into a number of tectonic plates. These plates move and interact with one another, driven by convectional forces within the Earth.
Explanation:
Evolution is a change in the characteristics of a population from one generation to the next. Which of the following is the correct order for the steps of evolution by natural selection?
overproduction – selection -adaptation – evolution
overproduction – variation – selection – adaptation
overproduction – selection – adaptation – variation
selection – variation – adaptation - overproduction
Answers
Answer: overproduction – selection -adaptation – evolution
Explanation: completed the test and I got it correct
skeletal muscle cells of animals contracting in under low oxygen conditions rely on fermentation to keep going. what product of fermentation enables the muscle cells to keep ""working?""
Answers
Fermentation is a method for producing ATP anaerobically (i.e., without oxygen).
Your muscle will begin manufacturing ATP through lactic acid fermentation as soon as the stored ATP is used up. Cells can continue producing ATP through glycolysis after fermentation. A result of fermentation is lactic acid. Oxygen is used by cells to produce ATP, or useable energy, from the food we consume. Usually, this is accomplished by means of cellular respiration. In the final step of the electron transport chain, where the majority of ATP is produced, during cellular respiration, oxygen receives electrons. The electron transport chain stops producing ATP in the absence of oxygen.
Glycolysis during fermentation only yields two ATP per glucose molecule, which is significantly less ATP than is produced during cellular respiration.
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A community is composed of
(1) organisms of the same species in an area
(2) an organism's food supply in an area
(3) all of the different organisms living in. an area
(4) the living and nonliving components in an area
Answers
The fruiting body found above ground in fungi is called the
A. cap.
B. hyphae.
C. mycelium.
Answers
Answer:
fruiting body is called cap
The mycelium is the fruiting body found above ground in fungi.
The pileus is the technical name for the cap, or cap-like part, of a basidiocarp or ascocarp (fungal fruiting body) that supports a spore-bearing surface, the hymenium.
A hypha is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium.
A mycelium is a network of fungal threads or hyphae. Mycelia often grow underground but can also thrive in other places such as rotting tree trunks. A single spore can develop into a mycelium. The fruiting bodies of fungi, such as mushrooms, can sprout from a mycelium.
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Cancer is considered a disruption of the cell cycle because?
A) it is caused by a defect in a gene.
B) body cells lose the ability to control growth.
C) chemical signals are interrupted.
Answers
Answer:the answer is B
Explanation:
Answer:
B
Explanation:
Cancer is a disease in which some of the body's cells grow uncontrollably and spread to other parts of the body. Cancer can start almost anywhere in the human body, which is made up of trillions of cells.
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name at least four process that
are common to most living things
Answers
organization, metabolism, responsiveness, movements, and reproduction.
What is the movement of molecules from high to low concentration.
Answers
Answer:
Diffusion
Explanation:
Diffusion is the movement of molecules from a region of high concentration to a region of low concentration. Had the question been specific on water molecules, then the answer would have been osmosis.
Which sector consumes the most water in the United States?
Answers
Answer:agriculture
Explanation:
The agricultural sector represents 92% of total water consumption. Every American citizen consumes 2,842 cubic meters of water on average per year.
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2. why would a slow, sustained contraction of smooth muscle be appropriate for the muscles of the digestive system
Answers
A slow, sustained contraction of smooth muscle is appropriate for the muscles of the digestive system because of the nature of their function. The digestive system is responsible for breaking down food and absorbing nutrients, a process that requires time and control.
The muscles in the digestive system, known as smooth muscles, are responsible for the movement of food through the various organs, such as the stomach and intestines.
Smooth muscles are involuntary muscles that are capable of sustained contractions without fatigue. This means that they can maintain a constant level of tension for an extended period of time, which is necessary for the slow and controlled movement of food through the digestive system.
The slow, sustained contractions also help to mix the food with digestive enzymes and acids, allowing for proper digestion and absorption of nutrients. In addition, these contractions help to prevent the food from moving too quickly through the digestive tract, which can result in poor nutrient absorption and digestive issues such as diarrhea.
Overall, the slow, sustained contractions of smooth muscle in the digestive system are essential for proper digestion and nutrient absorption. They provide the necessary control and time needed for the food to be broken down and absorbed efficiently.
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What kind of cells does HIV target? How does this targeting affect the hosts body process
Answers
Answer:
The white bloods cells, it takes control of the DNA.
Explanation:
how can I calculate the actual temperature from the anomaly?
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Answer:
In standard usage, the normal average temperature would be calculated over a period of at least 30 years over an homogeneous geographic region. For example, if the reference value is 15 °C, and the measured temperature is 17 °C, then the temperature anomaly is +2 °C (i.e., 17 °C −15 °C).
Explanation:
which one of the following tissues can respond to the environment by generating electrical signals?
Answers
Nervous tissue is the type of tissue that can respond to the environment by generating electrical signals. Composed of specialized cells called neurons, it is responsible for transmitting electrical impulses or signals throughout the body.
These electrical signals, known as action potentials, enable rapid communication and coordination of activities. Nervous tissue plays a vital role in various processes, including sensory perception, motor control, and information processing.
Neurons possess unique structural and functional properties that allow them to receive, integrate, and transmit signals, facilitating the exchange of information within the nervous system. Through this electrochemical signaling, nervous tissue enables organisms to detect and respond to external stimuli, ensuring proper functioning and adaptability to the environment.
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A sample of convenience may be acceptable when there is ____ difference between the sample and the population.
Answers
A sample of convenience may be acceptable when there is no significant difference between the sample and the population.
A convenience sample is one that is selected based on its accessibility and availability, rather than through a random selection process. This type of sampling is often used in situations where it is difficult or impractical to obtain a random sample, such as in studies involving rare populations or hard-to-reach individuals.
While convenience samples may be useful in certain situations, they are generally not considered to be as representative or as reliable as random samples. This is because convenience samples are more likely to be biased and may not accurately reflect the characteristics of the population being studied.
To ensure the validity of research findings, it is generally recommended to use random sampling methods whenever possible. However, in cases where a convenience sample is used, it is important to carefully consider the potential biases and limitations of the sample and to acknowledge these limitations when interpreting the results.
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Once pollen lands on the stigma of a flower, the pollen germinates, creating a pollen tube that grows down the ovule. The sperm cell moves through the tube to fertilize the egg. Based on the evidence from the experiment above explain how natural selection might have led to directional selection toward higher aperture number.
Answers
In plants most pollen grains are tricolpates, that is to say, they have three apertures, what's more there are a great number of different pollen shapes and apertures, this is quite dependent, on the species and pollen stigma dynamics.
Nonetheless, in the present case we have that those pollen grains with more aperture germinate faster, assuming that all repetitions belong to the same species we would be looking at a directional selection towards a higher aperture number, this could be due to a faster interaction of stigma secretions with pollen tube grow, pollen tube could take less time to nourish, interact and grow in the stigma. or could be a mutation in those pollen grains with three apertures that makes them less viable not so much is about germination speed maybe this with pollen with three apertures could be unfertile so the low percentage is not because of time but infertility. Another situation is that those pollen grains with three apertures have differences in pollen kit and receptors so there is no proper recognition stigma pollen, and so germination is slower or inhibited.
Recessive traits appear only when an organism is?
Answers
Answer:
A recessive trait is a trait that is expressed when an organism has two recessive alleles, or forms of a gene. Traits are characteristics of organisms that can be observed; this includes physical characteristics such as hair and eye color, and also characteristics that may not be readily apparent, e.g. shape of blood cells
Explanation:
As a result of the experiment scientists did with Mexican tetras, it seems likely that their first hypothesis about blindness in the tetras is right. Explain how the result of the experiment supports their first hypothesis.
The scientists' first hypothesis is that blindness gives the fish some sort of evolutionary advantage, but not directly.
The experiment was: The scientists transplanted a lens from the eye of a surface tetra embryo into the eye of a cave tetra embryo. The result was striking—the surface tetra lens into the cave tetra caused all of the surrounding tissues to develop into a healthy eye.
Answers
A result that supports the hypothesis 'blindness gives the fish some evolutionary advantage, but not directly' may be a higher fitness in close relatives of fish.
What is a hypothesis?An scientific hypothesis is a given explanation to a scientific observation from the real world.
A hypothesis must be verifiable, which means that it can be confirmed or rejected by using the scientific method.
In conclusion, a result that supports the hypothesis 'blindness gives the fish some evolutionary advantage, but not directly' may be a higher fitness in close relatives of fish.
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Why can an electric current pass easily through a metal?
1-The positive nuclei metal atoms strongly attract their negative valence electrons
2-Positively charged metal ions move freely from one end of a metal to the other
3-Negatively charged electrons can move freely through a metal
4- positively charged metal ions are arranged in crystals
Answers
Answer: The Correct answer is 3) Negatively charged electrons can move freely through a metal
Explanation:
The electric current can pass easily through a metal because the electrons or negatively charged ions are relatively free to move in metals. So, whenever current pass-through metals, electrons carry electricity and pass it through the metal. The movement of these electrons are the reason for conduction of current in metals.
Answer:Negatively charged electrons can move freely through a metal
CCC Cause and Effect What would happen to the probabilities of yellow and green seeds if one parent were homozygous recessive and the other were homozygous dominant?
Answers
Answer:
He proved that an organism inherits alleles ("factors") that control which traits are expressed and that these alleles could be dominant or recessive.
an albino corn snake is crossed with a normal-colored corn snake. the offspring are all normal-colored. when these first-generation progeny snakes are crossed among themselves, they produce 32 normal-colored snakes and 10 albino snakes. which of these phenotypes is controlled by the dominant allele?
Answers
The normal-colored phenotype is controlled by the dominant allele.
The normal-colored phenotype is controlled by the dominant allele because when the albino corn snake is crossed with the normal-colored corn snake, all of the offspring are normal-colored. This suggests that the normal-colored phenotype is dominant over the albino phenotype, meaning that the normal-colored phenotype is controlled by the dominant allele.
When the first-generation progeny snakes are crossed among themselves, they produce 32 normal-colored snakes and 10 albino snakes, further confirming that the normal-colored phenotype is controlled by the dominant allele.
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Besides lubricating the visceral and parietal pleura, pleural fluid also
Select one:
a. holds the visceral and parietal pleural membranes together
b. prevents the lungs from overinflating
c. increases diffusion rates in the lungs
d. helps fill the pleural cavity
Answers
Pleural fluid serves several important functions in the lungs. Besides lubricating the visceral and parietal pleura, it also helps prevent the lungs from overinflating by creating a vacuum-like effect in the pleural cavity. This is achieved by maintaining a negative pressure within the cavity, which helps to hold the lungs against the chest wall and prevents them from collapsing.
Additionally, the pleural fluid helps hold the visceral and parietal pleural membranes together, which ensures that the lungs move smoothly during breathing. Finally, the pleural fluid also contributes to increasing diffusion rates in the lungs by creating a thin layer of fluid that helps gases move more easily across the pleural membrane. Overall, the pleural fluid plays a critical role in maintaining the health and function of the lungs.
Besides lubricating the visceral and parietal pleura, pleural fluid also serves to hold the visceral and parietal pleural membranes together. This can be found in option (a). The pleural fluid's role is to reduce friction between the two membranes as the lungs expand and contract during breathing.
By holding these membranes together, the fluid creates a negative pressure within the pleural cavity, which ensures the lungs remain inflated and helps with efficient lung function. While options (b), (c), and (d) may seem plausible, they do not accurately represent the primary purpose of pleural fluid.
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What are the fundamental methods, models, or theories in
nanotribology? Please be as explicative as you can.
Answers
The fundamental methods, models, and theories in nanotribology include Atomic Force Microscopy (AFM), Molecular Dynamics (MD) simulations, Contact Mechanics, Surface Chemistry, and Lubrication Theory.
Nanotribology, also known as nanoscale tribology, is the study of friction, wear, and lubrication at the nanoscale level. It focuses on understanding the fundamental mechanisms and behaviors of surfaces and interfaces when subjected to relative motion on the nanometer scale.
There are several fundamental methods, models, and theories employed in nanotribology research:
Atomic Force Microscopy (AFM): AFM is a widely used technique that allows for the measurement and manipulation of surfaces at the atomic and molecular scale. It provides detailed information about surface topography, friction, and adhesion forces.
Molecular Dynamics (MD) Simulations: MD simulations use numerical methods to simulate the motion and interactions of atoms and molecules. These simulations provide insights into the behavior of surfaces, lubricants, and additives at the nanoscale, allowing for the prediction of friction and wear properties.
Contact Mechanics: Contact mechanics is the study of the deformation and interaction between contacting surfaces. It involves the analysis of forces, stresses, and deformation at the interface, which helps in understanding the origins of friction and wear.
Surface Chemistry: Surface chemistry plays a crucial role in nanotribology. It involves studying the chemical composition, structure, and reactivity of surfaces, as well as the formation of boundary layers and tribofilms during sliding.
Lubrication Theory: Lubrication theory focuses on understanding how lubricants reduce friction and wear between surfaces. It includes concepts such as boundary lubrication, hydrodynamic lubrication, and elasto hydrodynamic lubrication, which describe different mechanisms of lubrication at the nanoscale.
These methods, models, and theories collectively contribute to advancing our understanding of nanotribology and have applications in various fields, including materials science, nanotechnology, and engineering.
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Which of the following demonstrates an organ providing a force?
1.The eye transmits information to the brain.
2.The heart contracts and expands to move blood.
3.The kidney filters waste from blood.
4.The skin protects other organs from damage.
Answers
Answer:
I would say the answer would be: 2. The heart contracts and expands to move blood.
Explanation:
The heart is forcing itself to contract and expand so it can move blood throughout the body. If I am wrong, let me know, but I believe that this is correct since it's a function of force.
On a graph, the vertical axis is
the y-axis and the horizontal
axis is the x-axis. Onəwhat axis
should the INDEPENDENT
VARIABLE be placed?
A
on the vertical or y-axis
B
on the horizontal or x-axis
Answers
Answer:
x-axis
Explanation:
you control those values/variables
On a cartesian plane, the independent variable belongs on the x-axis.
What are coordinates?A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.
The independent variable is the variable that is being manipulated or controlled in an experiment, and its values are typically plotted along the horizontal or x-axis.
The dependent variable, which is the variable being measured or observed in response to changes in the independent variable, is usually plotted on the vertical or y-axis.
This convention allows us to easily visualize and analyze the relationship between the two variables.
therefore, The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line). The x and y axes cross at a point referred to as the origin, where the coordinates are (0,0).
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1. If a vegetable with a selectively permeable membrane is placed in a solution with a high water concentration, what will occur?
a) Water will diffuse out of the vegetable.
b) Water will diffuse into the vegetable.
c) Water
d) Salt will diffuse into the vegetable.
2. There is a concentration gradient between two areas where one area has a high concentration of salt and the other has a low concentration of salt. What process will occur within these two areas?
a) Salt will diffuse to the area with a higher concentration of salt.
b) Salt will diffuse to the area with a lower salt concentration until there is no more concentration gradient.
Answers
Answer:
1. B water will defuse into the vegitable 2 b I think
answer: 1.B. 2. B
Explanation:
1. If a plant cell is put into a high-water concentration of water, the water will go into the cell by osmosis and the cell will become hard and firm.
If there is a high concentration of salt water with a lower concentration of salt water, what will happen is the salt will diffuse to the area where there is lower concentration of salt until all of the 2 areas are fully mixed.
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a 4kg object has a volume of 7.5ml calculate the density
What are given?
Formula and
Solution
Answers
Explanation:
1ml = 1 cm3
7.5ml = 7.5 cm3
1000g = 1kg
4kg = 4000g
Density = Mass/Volume
= 4000g/7.5cm3
= 533g/cm3
___________ are the central building blocks of the nervous system.
Answers
Answer:
neuron is the answer
Explanation:
Select the chemical activity, chosen from the list below, that is
best described by the statement shown.
Either lactic acid or ethyl alcohol is produced as a waste
product of this process.
A
Dehydration synthesis
Aerobic respiration
B
Enzymatic hydrolysis
D
Anaerobic respiration
Answers
Answer:
D Anaerobic respiration
Explanation:
The product of anaerobic respiration is the formation of either lactic acid (lactate) or ethyl alcohol as a waste product.
Anaerobic respiration is a process that occurs in the absence of oxygen gas.When oxygen is lacking in cells, glcolytic process follows the anaerobic path way. This process produces very little energy for the body. During a period of intense exercise, anaerobic respiration usually occurs.what is meant by saying one strand of dna is the template for the synthesis of another strand?
Answers
Answer:
Like what is said above ( which is correct ) each strand in the DNA double helix acts as a template for the synthesis of a new, complementary strand
Explanation:
Like said above:
We know that each strand in the DNA double helix acts as a template for the synthesis of a new, complementary strand
because each of the two strands that make up the double helix serves as a template from which new strands are copied. The new strand will be complementary to the parental or “old” strand. Each new double strand consists of one parental strand and one new daughter strand.