The statement 'Sodium and potassium ions contribute to an action potential produced by nerve cells' is the most accurate when discussing the function of nerve cells (Option d).
What is the function of nerve cells?The function of nerve cells is associated with the entry and out of sodium and potassium ions across the plasma membrane, which generates differences in electrical charges between the cell and the surrounding medium.
In conclusion, the statement 'Sodium and potassium ions contribute to an action potential produced by nerve cells' is the most accurate when discussing the function of nerve cells (Option d).
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Tall trees create shade over smaller trees, causing the smaller trees to experience changes in sunlight. Which is most likely a limited resource for the smaller trees?
Appositional bone growth occurs within the entire phone to withstand stresses at a specific spot in the bone true or false
Answer:
True
Explanation:
(02.02 MC)
To study the details of protein molecules on the surface of a cell, a biologist would most likely use a
scanning electron microscope
transmission electron microscope
compound light microscope
dissecting microscope
The correct answer to this question is a Scanning Electron Microscope.
A scanning electron microscope (SEM) is a potent magnification device that collects data using concentrated electron beams.A concentrated electron beam is scanned across a surface by a scanning electron microscope (SEM) to produce a picture. The interaction between the beam's electrons and the sample results in a variety of signals that can be used to learn more about the surface composition and topography.A scanning electron microscope has several uses, provides detailed three-dimensional and topographical imaging, and may gather a variety of information from various detectors.
Therefore, the correction option is that a Scanning Electron Microscope should be used to study the surface protein details of a cell.
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Adenosine triphosphate (ATP) is the energy currency of a cell. All of the following statements regarding ATP are true expect one. Select the exception.
A)ATP is used to lower the activation energy in enzymatic reactions.
B)The splitting of the third phosphate from ATP to produce ADP and P; releases energy used to support an animal's metabolism.
C)ATP is a nucleotide similar in structure to the nucleotides that comprise DNA.
D) ATP is formed when ADP is phosphorylated using energy derived from molecules an animal consumes in its diet.
Adenosine triphosphate (ATP) is a cell's energy currency. All of the following statements about ATP are true, except ATP is used to lower activation energy in enzymatic reactions.
A) ATP is used to lower the activation energy in enzymatic reactions.How does ATP affect enzyme activity?Enzymes allow chemical reactions to proceed with activation energy provided by the catabolism of ATP. When cells convert glucose and oxygen into carbon dioxide and water, they use 2 molecules of ATP as activation energy and gain 36 to 38 molecules of ATP in return. Without enzymes, this would not be possible.
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how are hypotheses and theories different
Answer:
hypothesis are not proven exactly
but theories are given after performing many experiments
Which is not an accurate statement about the fossil record?
A. The fossil record represents less than one percent of all of the species that ever lived.
B. Land organisms are more likely to fossilize than aquatic organisms.
C. It is rare for the remains of a soft-bodied organism to become a fossil.
D. Most fossils are found in sedimentary rock.
Answer:
i think it is B
sry if it is wrong
What is the significance of farmers learing how to use these
technologies and integrating them into the decisions they make on a daily basis for growing crops and raising animals?
Farmers need to adapt precision agriculture to increase the crop yield, productivity and bring the expenses in control.
For every farmer, agricultural retailer, and agronomist, technology has evolved into a necessary component of conducting business. No one should be shocked by the high rate of technological use in agriculture. Farming requires a lot of land and effort. Farmers are compelled to employ technology to boost productivity and control expenses.
Precision farming and precision ag are other terms for precision agriculture. The best approach to grasp precision agriculture may be to see it as anything that makes farming more precise and regulated when it comes to producing animals and growing crops.
The utilization of information technology and a variety of tools, including GPS guidance, robots, control systems, drones, sensors, telecommunications, autonomous vehicles, GPS-based soil sampling, variable rate technology, automated hardware, and software, is a crucial aspect of this farm management strategy.
Another crucial phrase associated with the fusing of approach and technology is "precision agronomics." It primarily focuses on offering more precise farming methods for planting and cultivating crops.
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Look at the graph. As the
pressure (P) increases, what
happens to the volume (V) of
the sample?
As pressure increases, the volume of the sample decreases.
As we know according to Boyle's law volume and pressure are inversely proportional.What does Boyle's law state?Boyle's law states that,
"The absolute pressure exerted by a given mass of an ideal gas in a closed system with constant temperature and gas volume is inversely proportional to the volume it fills."
It represented as P1V1=P2V2
What are some of the real-life examples of Boyle's law?When you inflate your bicycle tires, you can see how Boyle's Law is used in practice. The gas molecules inside a tire are squeezed and crammed closer together when air is pumped into it. The pressure of the gas increases as a result, and it starts to press against the tire's walls.To learn more about Boyle's law visit:
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The CITRIC ACID CYCLE produces NADH, FADH2 and carbon dioxide. It also produces
The CITRIC ACID CYCLE produces NADH, FADH2, carbon dioxide (CO2) and one molecule of GTP or ATP (Adenosine triphosphate).
What is the citric acid cycle?The citric acid cycle (also known as the Krebs cycle) is the second step in cellular respiration which aims to produce energy mainly in the form of ATP to be used in aerobic cells in presence of molecular oxygen (i.e., O2).
In conclusion, the CITRIC ACID CYCLE produces NADH, FADH2, carbon dioxide (CO2) and one molecule of GTP or ATP (Adenosine triphosphate).
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It is D or A please answer
Why did so few people settle west of the Mississippi River between 1700 and 1800?
A. Land west of the Mississippi River was not good for farming.
B. The United States government promised that land to the Native Americans.
C. The Land Ordinance of 1785 forbid settlers to move west of the Mississippi River.
D. The Mississippi River was very difficult to cross.
Answer: D is the correct answer
Explanation: Answer verified as correct on the test.
Interdependence of organisms explains the concept that living things
Answer:
That living things rely on each other in order to survive would be my guess
Explanation:
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8
The picture below represents what type of cell transport?
Vesicle
Extracellular fluid
Cytoplasm
A passive transport, specifically endocytosis
B passive transport, specifically exocytosis
C . active transport, specifically endocytosis
D active transport, specifically exocytosis
When the two substances are put in the same container, they do not attract each other. Why did this happen?
Answer:
One is polar and one is nonpolar.
Explanation:
................
Yes..............
In what year was the law of conservation of mass was first
demonstrated?
a 1685
b 1885
c 1785
d 1985
Answer:
It was in 1789, i suppose C is the closest.
Which of the following is likely to describe a metabolic reaction where the net delta G value is positive?
spontaneous or non-spontaneous
catabolic or anabolic
positive delta E or negative delta E
The non spontaneous, anabolic and positive delta E are some of the reaction where net delta G is positive.
What are metabolic reactions?The Gibbs free energy difference between a reaction's products and reactants is known as delta G.
The response is spontaneous if Delta G is negative, non-spontaneous if it is positive, equilibrium if it is zero, and non-spontaneous if it is negative. If dH is positive and dS is negative according to the equation dG = dH - dS*T, then delta G is positive.
Delta G is negative if dH is negative and dS is positive. It depends on the temperature at which the reaction is taking place whether dH and dS are both positive or both negative.
Therefore, The non spontaneous, anabolic and positive delta E are some of the reaction where net delta G is positive.
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The periodic table; rows of elements have certain trends. That is, things change predictably. The columns contain elements that have like properties.
The properties of the rows and columns of elements in the periodic table are as follows:
Column:
called a familynumber of valence electronsphysical properties are similarwith what and how the element will bondRow:
called a periodnumber of energy levels in atomsolids to gasessolids to gasesmetals to nonmetalsWhat is the periodic table?
The periodic table is a table that arranges the elements based on increasing atomic number into horizontal rows and vertical columns.
The properties of the elements in the periodic table show a regular variation across the vertical columns and the horizontal rows. This variation in property is known as periodicity.
The vertical columns are called groups or families whereas the horizontal rows are called periods.
The periods determine the number of valence shells in an element while the groups determine the number of valence electrons, and hence reactivity of the element.
Across a period from left to right, the elements change from metals to non-metals.
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Which of the following chemical reactions represents the Catalase reaction?
H₂O + O₂->> H₂O₂
H₂O₂ ----> H₂O + 0₂
2H₂O2 -> 2H₂O + O₂
2H₂O + O₂->> 2H₂O2
The reaction 2H₂O2 -> 2H₂O + O₂ shows Catalase reaction. The correct option is 3.
What is Catalase reaction?The catalase reaction encompasses the breakdown of hydrogen peroxide (H₂O₂) into water (H₂O) and oxygen (O₂).
The enzyme catalase facilitates this reaction. The reaction is represented by the equation: 2H₂O₂ -> 2H₂O + O₂.
This means that when two molecules of hydrogen peroxide react, two molecules of water and one molecule of oxygen are formed.
The presence of the enzyme catalase, which speeds up the reaction and allows it to occur under normal physiological conditions, makes this reaction possible.
The Catalase reaction is an important process that aids in the breakdown of harmful hydrogen peroxide into harmless water and oxygen in living organisms.
Thus, the correct option is 3.
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The figure shows an energy pyramid for an ecosystem. What happens to the amount of energy in the pyramid as it moves up through the different levels? Responses A It decreases by a factor of about 90%.It decreases by a factor of about 90%. B It decreases by a factor of about 10%.It decreases by a factor of about 10%. C It increases by a factor of about 90%.It increases by a factor of about 90%. D It increases by a factor of about 10%.
Answer: As you move up the pyramid, through the trophic levels to primary, secondary and tertiary consumers, the amount of energy decreases and the levels become smaller.
Explanation: While energy can not be created or destroyed is it released as heat within each level. Approximately only 10% of energy is passed from one level to the next.
but how much does it take
Choose the hypothesis for the controlled experiment that answers the question:
“Does feeding animals a high-protein diet build muscle?”
Feeding animals, a high-protein diet will do more harm than good.
If I eat a high-protein diet, then I will spend too much money. High-protein diets are too expensive.
If animals are fed a high-protein diet, then it will not cause them to build muscle.
High-protein diets are not healthy for animals.
High-protein foods are important for building muscles. So, if animals are fed a high protein diet, then this will not cause them to build muscles. Thus option C is correct.
What is a high-protein diet?A high-protein diet is a diet in which 20% or more of the daily calorie intake comes from protein. A high-protein diet helps increasing the muscular mass.
Various animal and plant sources provide the necessary building blocks of muscles i.e., MPS (Muscle Protein Synthesis). An MRI can be performed to check the muscle mass percentage.
Therefore, correct option is C.
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The basic composition of a cell
Answer:
look at explanation
Explanation:
please give more details in the comment section of this answer so I can provide you with an asnwer
There are two required components to initiate transcription on the gene. What are they, and where do they bind on the DNA strand?
The two required components to initiate transcription on the gene are:
Transcription factors that bind to the promoter sequences Mediator proteins - binds to enhancer and promoter regions in the gene.What is transcription of a gene?Transcription of a gene is the process by which the information present in the gene is used to produce the messenger RNA molecule by RNA polymerase.
A gene is a sequence in the DNA molecule which codes for a particular gene product.
The process of transcription is important or the first step which is required in the production of the gene product of a gene.
In order for transcription of a gene to be initiated, certain components are required. These components include:
Transcription factors - these are proteins that bind to the promoter sequences as well as other regulatory sequences in the gene. The binding of transcription factors helps to recruit RNA polymerase to the site for transcription to begin.Mediator proteins - these are proteins which form part of the RNA polymerase complex. Mediator proteins binds to enhancer and promoter regions in the gene.Learn ore about transcription at: https://brainly.com/question/1048150
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Which step in the scientific method is next after collecting data?
A. form a hypothesis
B. come to a conclusion
C. Purpose a theory
D. design a model
Answer:
B
Explanation:
After collecting your data you'll be able to use that data to come to a conclusion and test to see whether your hypothesis was right or wrong
A mosquito bites your arm. You feel the sting, jump, and slap the mosquito. Which of your body’s organ systems are involved?
If a mosquito bites your arm. You feel the sting, jump, and slap the mosquito the body’s organ systems that are involved are nervous system and muscular system.
What is the nervous sistem?The nervous system is the one that will transmit the signals through the body thanks to the brain and they will also be transmitted in the opposite way. Thanks to this we can have control of our abilities to move, think, breathe, among others. Also through the collection of sensory, heat and painful stimuli we can prevent damage to the body by responding by removing the part of the body that receives the damage through a reflex, such as hitting the mosquito when feeling the itch.
Therefore, we can confirm that if a mosquito bites your arm. You feel the sting, jump, and slap the mosquito the body’s organ systems that are involved are nervous system and muscular system.
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What property of lipids makes them hydrophobic?
Lipids are largely non-polar
Lipids store energy
Lipids contain carbon
Lipids make up the cell membrane
PLEASE HELP Which statement best explains how enzymes speed up chemical reactions? Responses Enzymes gain heat from chemical reactions.
A) Enzymes gain heat from chemical reactions.
B) Enzymes use light energy to speed up chemical reactions.
C) Enzymes lower the activation energy of a reaction.
D) Enzymes change shape during chemical reactions.
The statement that best explains how enzymes speed up chemical reactions is "Enzymes lower the activation energy of a reaction." (Option C)
How does the above work?Catalysts are another name for enzymes. They accelerate the process by decreasing the activation energy of the reaction. This suggests that they are hastening the chemical processes.
The lowest amount of energy required by a reactant to produce an activated complex in order to launch a chemical or nuclear reaction is referred to as activation energy.
As a result, enzymes accelerate chemical processes by decreasing the activation energy.
What are enzymes?Enzymes are proteins that serve as biological catalysts by speeding up chemical processes. Substrates are molecules on which enzymes can function, and the enzyme changes the substrates into various molecules known as products.
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What is amylase?
a. acid in the stomach
b. another name for the large intestine
c. an enzyme that breaks down food
d. a nutrient absorbed in the small intestine
I think it is C because it is an enzyme or protein but not a nutrient. Help?
Answer:
What is amylase?
a. acid in the stomach
b. another name for the large intestine
c. an enzyme that breaks down food
d. a nutrient absorbed in the small intestine
i
Explanation:
Its C
The graph below shows the growth of a tree with time, but some data are missing. What was the most likely height of the tree in meters (m) at 10 days? A. 2 meters B. 3 meters C. 1 meter D. 4 meters
From observation of the graph, the likely height of the tree in meters at day 10 is given at 2 meters. Option A.
What is the explanation for the above?When working with graphs, data is first plotted then a relationship is deduced by drawing a line of best fit which connects the data points together.
It is to be noted that the data points on the graph suggest and indicate that the most likely height of the tree in meters at 10 days is 2.
It is to be noted that the graph of a function "f" is the set of ordered pairings where f(x)=y in mathematics.
When x and f(x) are both real values, these pairings represent Cartesian coordinates of points in two-dimensional space and so constitute a subset of this plane.
It is also known as a collection of points called vertices and lines connecting those points called edges.
Graphs are classified into several categories, including:
Graphs that are linked and unconnectedWeighted graphsdirected and undirected graphs andsimple graphs are all examples of bipartite graphs.Learn more about Graphs:
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Full Question
See the attached Image.
Which example shows an organism that cannot reach homeostasis through internal
changes? (1 point)
OA lizard is cold, and it moves to a sunny rock to warm up.
O Circulation decreases in a bird when it becomes too warm.
O A dog shivers when it is too cold.
OA person gets a fever in response to a flu infection.
An example that shows an organism that cannot reach homeostasis through internal changes is a lizard that is cold, and it moves to a sunny rock to warm up. The correct option is A.
What is homeostasis?Homeostasis is a process by which organisms maintain their body temperature and functions according to changes in environmental conditions.
These changes are blood circulation, and heartbeat changes to maintain normal function by changing the body condition, Mammal mostly can do homeostasis.
Thus, the correct option is A. lizard is cold, and it moves to a sunny rock to warm up.
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Answer:
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