Answer:
Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor.
Explanation:
ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
As blood levels of __________ rise, the expulsive contractions of labor gain momentum and finally end in birth.
Cross contamination can lead to infections but cannot lead to food allergies. True or false
How is density calculated given mass and volume?
Mass divided by volume
Mass multiplied by volume
Sum of volume and mass
Difference of volume and mass
How are the nitrogen cycle be disrupted human remove nitrogen fixing bacteria from soil?
Nitrogen-fixing bacteria are prokaryotic microorganisms that are capable of transforming nitrogen gas from the atmosphere into “fixed nitrogen” compounds, such as ammonia, that are usable by plants.
which of the following statements are true regarding active transport and facilitated diffusion (choose two answers) a) Active transport utilizes channel proteins and facilitated diffusion utilizes carrier proteins b) Both processes require the use of membrane proteins c) Both processes require the input of energy (ATP) d) Active transport moves substances against the concentration gradient and facilitated diffusion moves substances along the concentration gradient
Answer: B and D
Explanation: We can break down why the correct answers are choices B and D by understanding why A and C are incorrect.
Option A states that active transport utilizes channel proteins, and facilitated diffusion utilizes carrier proteins. This is incorrect. Active transport involves carrier proteins, and facilitated diffusion involves channel proteins. Carrier proteins are different from channel proteins in that, while channel proteins can only facilitate the passive diffusion of ions into or out of the cell along their concentration gradient, carrier proteins can also use ATP to move ions in or out of the cell against their concentration gradient.
This brings us to why option C is also incorrect. Option C states that both processes require the input of energy in the form of ATP. While active transport requires the use of ATP to transport ions with or against their concentration gradient, facilitated diffusion does not. This is easily remembered when we consider that active transport is called *active* transport because the cell is *actively* using energy to transport ions.
Hope this helped.
Answer: Choice B
Active transport moves substances against the concentration gradient and facilitated diffusion moves substances along the concentration gradient.
Choice D
Both processes require the use of membrane proteins.
Explanation: B- Active transport is active because it requires ATP in order to go against the gradient and facilitated diffusion is a type of passive transport that goes with or along the gradient without the use of ATP.
D- Active transport utilizes carrier proteins on the cell membrane and facilitated diffusion can utilize either channel or carrier proteins on the cell membrane.
Hope this helped have a nice day. :D
Which of the following is an example of an electromagnetic wave?
Red light
Ocean waves
Sound waves
Earthquakes
Answer:
Red light
Explanation:
i just took the teat and got it right
Hewo dear fwiends UwU please help me with my question.
Answer:
friction
Explanation:
what statement correctly compares a law and a theory?
Answer:
A law is a fact that cannot be changed, A theory however can be changed over the course of time.
Explanation:
I took tests
Where is new cartilage formed?
Answer:
vkhc ssh konh dirty chop outbox folks fond
Explanation:
zzz ric do fl go sack too do s7
Why should you not touch an electric air socket? Explain
Answer:
So if you touch an electric circuit and the ground at the same time, you will become electricity's easiest path. Electricity will flow through you, and you could be seriously hurt or killed. You don't have to be touching the ground directly to conduct electricity.
Explanation:
How does H. pylori help maintain the homeostasis of the human body?
Answer:
H. pylori (Helicobacter pylori) is a bacteria that maintains homeostasis of the human body by establishing chronic infection from ulcers and gastritis and using the method of autophagy to cleanse the body of damaged cells. H. pylori also contributes to the workings of the immune defense system.
The diagram below represents the time a cell spends in the two main phases of the cell cycle. Which section of the diagram represents the phase during which the cell divides, and what is this phase called?
Among the given areas on the chart, the blue is interphase and the yellow indicates M-phase. The correct option is D.
What is M-phase?M-phase in the cell cycle is the phase where actual division takes place. This phase forms daughter cells from one parent cell.
During cell division, a cell usually spends 95% of its time in interphase, so the maximum portion in the chart is blue which represents interphase, while the yellow is M-phase.
Thus, the correct option is D.
For more details regarding M-phase, visit:
https://brainly.com/question/210041
#SPJ2
The rate at which velocity changes is called _____
Answer:
acceleration
Answer:
acceleration
Explanation:
hope it whould help
Define the following terms: Purpose- Research- Avoiding Bias- Hypothesis- Experiment- Independent Variable- Dependent Variable- Control- Analysis- Conclusion-
Answer:
Purpose research is the statement or sentences that describe the main reason or why the study is been conducted or why the research is been conducted.
Avoiding bias refers to the act the authors avoid using language that are biased or not factual
Explanation:
Purpose research is the statement or sentences that describe the main reason or why the study is been conducted or why the research is been conducted. It states the goal of the study .
Avoiding bias refers to the act the authors avoid using language that are biased or not factual information that portray the evidence.
Hypothesis experiment refers to information or explanation that is supplied which can be tested to be truth or falsifiable.
Independent variable is a variable that can stand alone and it's variation does not depend on another but the experimenter can control or change it in an experiment.
Dependent variable is a variable that cannot stand alone but depends on independent variable in an experiment.
Control analysis refers to analysis that supply information about the output, the approaches or method used.
Conclusion refers to the final statements or words to finish a discussion or experimental study.
The famous scientist Albert Einstein sometimes used "thought experiments" such as imagining himself chasing a beam of light or riding in an elevator in free-fall. These thought experiments, which would not be possible to conduct physically, helped him challenge current scientific thinking and develop his theories of gravity and of special relativity.
Answer:
This is in order: select equipment, avoid errors, sample size, statistical analysis, hypothesis, and revised.
Explanation:
The thought experiments of Albert Einstein helped him to challenge the current scientific thinking of his time and develop his theories of gravity and of special relativity. This statement is true.
What are thought experiments?Though experiments are mental tools utilized by mang scientists, philosophers, and thinkers. They use these experiments to test theories and ideas that would not be possible in the real world.
A thought experiment encourages the skill of logical thinking, speculation, and analysis. An entire scenario and constructed and played out in the mind. The paradigms were kept the same as the real world so that the results could be related to the real world too.
This kind of experiment help to analyze the ideas that are beyond our comfort zone by making us take up the questions that we would have thought impossible to be solved.
Therefore, this mental tool was used by Albert Einstein to challenge the current scientific thinking of his time and develop his theories of gravity and of special relativity. This statement is true.
Read more about thought experiments, here
https://brainly.com/question/9841120
#SPJ2
A student uses paper towels to clean up a small chemical spill in the lab. Where should the dirty paper towels be placed ? A. In the lab sink B. In the wastebasket C. In the chemical waste container D. In the hazardous waste container
Answer:
D. In the chemical waste container
Explanation:
Because it was a chemical spill and not hazardous waste
Answer:
in the chemical waste container :)
Explanation:
In an experiment a scientist is testing to see if different sized jars affect
the length of time a candle will burn. What is the independent variable of
this experiment?
A.size of jar
B.shape of jar
C.type of candle
D.length of time candle burns
Is a robot an open, closed, or isolated system?
EXPLAIN WHY.
Answer:
Closed system.
Explanation:
Robot is an closed system because there is no transfer of mass but transfer of energy occurs from robot to its surrounding. According to the definition of closed system, closed system is a type of system in which there is only transfer of energy occurs while in open system both mass and energy can be transferred from the system to their surrounding. So no mass transferred from the robot only energy in the form of mechanical energy is transferred.
The pH scale measures the acidity of a substance. It is a negative logarithmic scale. A pH of 3 has a hydrogen ion concentration (which is responsible for acidity) ten times greater than a pH of 4. How many times greater is the hydrogen ion concentration of a pH 2 solution than a pH 6 solution?
Answer:
The correct answer is: a pH 2 solution has a 10000 times greater hydrogen ion concentration than a pH 6 solution.
Explanation:
The pH scale is a measurement used to describe the acidity of a solution, and this acidity is given by the concentration of H+ (hydrogen ion) in said substance. A solution with a greater concentration of H+, is more acid than a solution with a smaller concentration of H+ and, therefore, has a lower pH. Given that the pH scale is a negative logarithmic scale, a solution with a pH of 3 has a ten times greater H+ concentration than a solution with a pH of 4.
A pH 2 solution has 10 times more H+ ion concentration than a pH 3 solution, 100 times more H+ ion concentration than a pH 4 solution, 1000 times more H+ ion concentration than a pH 5 solution, and 10000 times more H+ ion concentration than a pH 6 solution.
When two monomers come together to make a polymer, a molecule of what is released? a.NO2 b.CO2 c.H2O d.H2O2
What is an analogy of protein synthesis
Answer:
Ribosomes and tRNA
The ribosome will 'read' the mRNA and insert the appropriate amino acids. An
amino acid is a unit used to build up a protein , like a piece of timber used to build
up a house. There are 20 amino acids that cells can use, and different
combinations of these amino acids can make different proteins .
The analogy for protein synthesis or translation is building a house. In this process, DNA acts as an architect which plans for the whole house.
What is Translation?Translation is the process in which the ribosomes in the cytoplasm or endoplasmic reticulum synthesize proteins after the process of transcription of the DNA molecule to mRNA (messenger RNA) in the cell's nucleus. The entire process of translation is called as gene expression.
Building a house could be good analogy for the process of protein synthesis. Here, the DNA would be the architect, who has the plans for construction of the whole house. The DNA is changed into mRNA, which is like the copy of the blueprint that is given to the general contractor.
Learn more about Translation here:
https://brainly.com/question/12463306
#SPJ6
Which could increase the amount of greenhouse gases in
the atmosphere?
O A. planting trees in areas that have been deforested
B. reducing the use of gasoline-powered vehicles
C. burning coal to produce electricity
O D. creating wind farms in desert areas
Answer:
C. Burning coal to produce electricity
burning coal to produce electricity
When you go to make yourself a sandwich, you notice that the bread has mold on it. Yuck. You decide to find out which brand of bread lasts the longest without molding. You buy 8 brands of bread and leave them on the counter. You record how long it takes for mold to form.
What is the INDEPENDENT variable in this experiment? *
Your answer
What is the DEPENDENT variable in this experiment? *
Your answer
What are the CONSTANTS in this experiment? *
This is for a Grade :,
Answer: Independent variable - brands of bread; dependent variable - how long it takes for mold to form; constant - bread that's not on the counter but in the fridge (or wherever it's supposed to be) instead
Explanation:
The dependent variable is the one that DEPENDS on what will happen. How long it will take for mold to form DEPENDS on the brand of bread.
The thing that is being "depended on" is the independent variable so that would be the brands of the breads.
The constant is the part of the experiment that always stays the same. Here, we aren't really given a constant so we can assume it would be the bread that's in its original position (in the fridge), untouched, so you can compare it with the other experiments (breads on the counter).
Hope this helps!
Arguably, the Moon is the most important Force on the Earth other than the Sun. Why and
what does it do to the Earth?
What is one of the main functions of lipids
Answer:
The lipids perform three primary biological functions within the body: they serve as structural components pf cell membranes, function as energy storehouses, and function as important signaling molecules.
what is the color of the sky?
Answer:
the color of the sky is actually violet
Explanation:
The human eye doesn't see individual wavelengths. Instead, the retinas of our eyes have three types of color sensitive cells known as cones. One type is most sensitive to red wavelengths, while the other two are most sensitive to green and blue wavelengths. When we look at something and the light strikes our retina, the strength of signal from each type of cone allows our brains to determine the colors we see. These colors roughly correspond to the actual wavelengths we see, but there are subtle differences. While each type of cone has its peak sensitivity at red, green, or blue, they also detect light of other colors. Light with "blue" wavelengths stimulate blue cones the most, but they also stimulate red and green just a little bit. If it really was blue light that was scattered most, then we'd see the sky as a slightly greenish blue.
HOPE THIS HELPS!!!!! :)
<3333333333
here is a scale of a fountain at a museum. the scale is 1:30. how many boulders are in the real fountain
Answer: 9
Explanation:
When we do a change in scale for a model of something, like a building, all the parts of the building suffer from this change of scale.
Then, the intrinsic properties (like the number of rooms and that) does not change. This means that the number of boulders that we see in the scale will be the same that the number of boulders in the real fountain:
So, if in the scale of the fountain we can see 9 rocks, in the real fountain there also are 9 rocks, just the rocks in the real fountain are larger.
Answer:
2
Explanation:
has experienced shortness of breath during the last 3 months. A magnetic resonance scan found a small endocrine-secreting mass centrally located in her chest. This mass most likely represents a mass of which gland?
Answer: Thymus gland
Explanation:
The thymus gland is an endocrine gland that is located in the upper part of the human chest. It is responsible for producing white blood cells. This gland is located near the airway. The enlargement of the thymus gland can suppress the nearby structures. This may result in shortness of breath, and cough along with sputum. The thymus gland produces several endocrine hormones like thymopoietin and thymulin.
The given condition is indicative of the mass of the thymus gland.
A teacher says she has identified an organism with these characteristics: eukaryotic, multicellular, autotrophic, and a
cell wall made of cellulose. Which kingdom is the teacher describing?
Explanation:
Hey, there!!
The teacher is surely describing about kingdom Plantae. Plants and animals posses some similar characteristics such as eukaryotic, multicellular, in the above descriptions. BUT;
The reason for above answer is,
Plants only produce food by themselves in presence of sunlight and chlorophyll. So, they are termed as autotrophic in nature.Similarly, plants cell only posses cellwall made up of cellulose.Hope it helps....