Answer:
The effect of the evolutionary driving forces on genetic diversity and evolution depends on the amount of genetic variations that already exist in a population. The amount of genetic variation within a given population remains constant in the absence of selection, mutation, migration, and genetic drift [23].
Answer:
Evolution and diversity result from the interactions between organisms and their environments and the consequences of these interactions over long periods of time.
Explanation:
Having better access to shelter and has contributed to global population growth.
Answer:
A better shelter and A. clean water lead to growth of global population.
Explanation:
Availability of a good shelter and clean water both help an individual lead a healthy life. The shelter protects him from external environmental factors that may be harmful to his existence. These factors include sunlight, rains, lightning, etc.
Clean water keeps the water-borne diseases away and helps the individual maintain hygiene which is ultimately necessary for his physical well-being. Thus, the availability of shelters and clean water increase the life expectancy and ultimately result in global population growth.
Answer:
A
Explanation:
edge 22
Which situations result in an increase in the national debt? select the two correct answers.
The two situations that result in an increase in the national debt include, an increase in intergovernmental debt and federal budget deficits.
What is a national debt?A national debt can be defined as the total sum of debts owed by the government of a nation.
Situations that results to an increase in the national debt include:
federal budget deficitsborrowing from the Social Security Trust Fundlow interest rates promoting increased investmentraised debt ceilingsAn increase in intergovernmental debt, etcLearn more about national debt here: https://brainly.com/question/1047372
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There is an algal bloom in a bay in a populated area. as the leading marine biologist in the area, what is the most important thing to do, based on scientific evidence about such blooms?
As a leading marine biologist, the most important thing to do is to warn people to stay away from the affected area to evacuate all wildlife from the bay.
What is an algal bloom?Algal bloom is the over growth of algae or algal look alike bacteria in the sea, river, or brackish water.
They are bad smelling and can be harmful for the animals and humans.
Thus, As a leading marine biologist, the most important thing to do is to warn people to stay away from the affected area to evacuate all wildlife from the bay.
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A beam of white light goes from air into the water droplet at an incidence angle of 36.2 degrees. what is the angle between the red (660 nm) and violet (410 nm) parts of the refracted light?
A beam of white light goes from air into the water droplet at an incidence angle. The angle between the red (660 nm) and violet (410 nm) parts of the refracted light is 0.19°.
What is white light?The white light is the ray coming directly from the Sun. When it strikes any glass object, an spectrum of colors with different wavelength is formed.
Given is the angle of incidence, i = 36.2°, the refractive index of water for red light is 1.331 , the refractive index of water for violet light is 1.340 and refractive index of air is 1.
Using the Snell's law, the angle of refraction of red light will be
1.331 x sin r(R) = 1 x sin 36.2
r(R) = 26.342°
Using the Snell's law, the angle of refraction of violet light will be
1.340 x sin r(R) = 1 x sin 36.2
r (V) = 26.152°
Difference in the angle of refraction of red and violet light is
r(R) - r (V) = 26.342 - 26.152 = 0.19°
Thus, the angle between the red (660 nm) and violet (410 nm) parts of the refracted light is 0.19°.
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Describe in detail the most memorable visual aid you've ever seen used in a presentation. why does it stick out in your memory? how was it used to illustrate a point? what did you learn from this experience?
Answer:
Explanation:
The most memorable visual aid I have seen used was when a psychology professor used graphic descriptions (through historically important paintings) to illustrate abstract concepts, such as love, madness, and despair.
The representations used in the presentation stuck in my mind because of the visual impact that correlated with my personal experiences, making them vivid and memorable in my mind.
The points illustrated aimed at demonstrating the universality of human passions, and as such, it was an extremely successful presentation.
Finally, what I learned from this experience is that human emotions are not only universal, and as such, they can be represented, but, also, and most importantly, they are emotions that are not abstract concepts, rather, singular and personal experiences to which, paradoxically, everyone is subjected.
Which quotation from the passage provides evidence of the implied claim
Answer:
a, we mutually pledge to each other our lives, our fortunes, and out sacred honor
A ball is hit at an angle of 300. at what point in its trajectory does this projectile have the least speed?
At the highest point, the speed will be the least. Then the correct option is A.
What is kinematics?It is the study of the motion of a body without considering mass. And the reason behind them is neglected.
A ball is hit at an angle of 30°.
Then the speed in the x-direction will not change with respect to time because acceleration is zero.
But the speed in the y-direction depends upon the acceleration due to gravity.
If the project an object with an angle, then as it goes upward direction the speed decreases and becomes zero at the highest point then it falls down with increasing speed.
At the highest point, the speed will be the least. Then the correct option is A.
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Which word is an antonym for the word gaunt brainly
Answer:
haggard
Explanation:
i got it right
A solid right pyramid has a regular hexagonal base with an area of 5. 2 cm2 and a height of h cm. a solid right pyramid has a regular hexagonal base with an area of 5. 2 centimeters squared and a height of h centimeters. which expression represents the volume of the pyramid? one-fifth(5. 2)h cm3 startfraction 1 over 5 h endfraction(5. 2)h cm3 one-third(5. 2)h cm3 startfraction 1 over 3 h endfraction(5. 2)h cm3
Based on the calculations, the volume of this pyramid is equal to D. 5.2h/3 cm³.
Given the following data:
Base area = 5.2 cm².Height = h cm.How to calculate the volume of a pyramid?Mathematically, the volume of a pyramid is calculated by using this formula:
Volume = 1/3 × base area × height
Substituting the given parameters into the formula, we have;
Volume = 1/3 × 5.2 × h
Volume = 5.2h/3 cm³.
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Choose the word or phrase that best completes each sentence. the telescope was used to . the microscope was used to . the barometer helps to . the thermometer helps to .
The thermometer measures temperature, the barometer measures pressure, the microscope magnifies small objects, and the telescope magnifies distant objects.
What are the scientific instruments?Scientific instruments are the devices that are used to measure and estimate the wind, electricity, pressure, temperature, radiations, etc.
The thermometer and the barometer are weather forecasting instruments. The thermometer helps in measuring the temperature, while the barometer helps to measure the atmospheric pressure.
The telescope and the microscope are the magnifying instruments. The telescope magnifies the objects that are located very far away like stars, planets, etc. While the microscope magnifies the small objects like cells and tissues.
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Answer:
The telescope was used to
view distant objects
The microscope was used to
view plant and animal cells
.
The barometer helps to
predict the weather
The thermometer helps to
practice medicine
.
Explanation:
Of 1000 students surveyed, 490 were boys and 320 had bicycles. of those who had bicycles, 130 were girls. what is the probability that a student surveyed was either a boy or had a bicycle?
By definition of probability, the probability that a student surveyed was either a boy or had a bicycle is 62%.
Definition of ProbabitityProbability is the greater or lesser possibility that a certain event will occur.
In other words, the probability is the possibility that a phenomenon or an event will happen, given certain circumstances. It is expressed as a percentage.
Union of eventsThe union of events, AUB, is the event formed by all the elements of A and B. That is, the event AUB is verified when one of the two, A or B, or both occurs. AUB is read as "A or B".
The probability of the union of two compatible events is calculated as the sum of their probabilities subtracting the probability of their intersection:
P(A∪B)= P(A) + P(B) -P(A∩B)
The intersection of events, A ∩ B, is the event formed by all the elements that are, at the same time, from A and B. That is, the event A ∩ B is verified when A and B occur simultaneously.
Events and probability in this caseIn first place, let's define the following events:
A: The event that a student surveyed was a boy.B: The event that a student surveyed had a bicycle.Then you know:
P(A)= [tex]\frac{490}{1000}[/tex]=0.49= 49%P(B)= [tex]\frac{320}{1000}[/tex]= 0.32= 32%P(A and B)= P(A∩B)= [tex]\frac{190}{1000}[/tex]= 0.19= 19% [320 students had bicycles. Of those who had bicycles, 130 were girls. Then, 190 were boys.]In this case, considering the definition of union of eventes, the probability that a student surveyed was either a boy or had a bicycle is calculated as:
P(A∪B)= P(A) + P(B) -P(A∩B)
P(A∪B)= 0.49 + 0.32 -0.19
P(A∪B)= 0.62= 62%
Then, the probability that a student surveyed was either a boy or had a bicycle is 62%.
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Amaya is writing an argumentative essay on how the columbian exchange expanded the european economy. which source would most likely provide relevant evidence?
Answer:
Explanation:
Answer: the second one, aan article from www.europeanhistory.net that was updated in 2008.
i’d say an article in the Journal of European History
This source isn't very recent (but it doesnt need to be because Amaya is writing about the history of Europe), but we do know that it was updated, which implies that more relevent information was posted. The information is coming from a trustworthy source (we know this because of the url the article is from), so is likely very relevent and relaible. The last source is irrelevent becasue it's abput a carmaker who had/has nothing to do with the Columbian Exchange, and the first source is from a journal (we don't know who the journal belongs to, or what kind of information is in it).
What are your plans after high school? write a personal statement about how your education has prepared you to take on your next step after high school.
The knowledge of science which I gained in high school has equipped me with the basic knowledge
What are your plans after high school?High school has been a time of intensive preparation for the future and exposure to various career options that I could undertake in the future. My high school education has offered me the opportunity to learn more about science.
This my knowledge of science so gained has equipped me with the basic knowledge required to pursue a career as a research scientist in the university.
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How does orwell use satire to support his purpose in this passage? he uses reversal to reveal the complexities of charismatic leaders. he uses exaggeration to reveal the power of music. he uses parody to imitate communist propaganda techniques. he uses ridicule to make fun of traditional patriotic songs.
Answer:
he uses parody to imitate communist propaganda techniques.
Explanation:
i chose b, but it was incorrect. c is the correct answer
Answer:
C
Explanation:
IM HIM
Leadership is a talent that cannot be learned. please select the best answer from the choices provided t f
Answer:
The statement is false because anyone can learn good leadership skills.
Explanation:
Leadership is defined as a skill, not a talent. Through repetition and practice, anyone can learn to become an effective leader.
Find the solution of the square root of the quantity of x plus 3 plus 6 equals 9, and determine if it is an extraneous solution.
Answer:
[tex] \sqrt{x} + 3 + 6 = 6 \\ ( \sqrt{x}) { }^{2} + 9 + 32 = 81 \\ x = 81 - 9 - 32 \\ x = 40[/tex]
Explanation:
solve for x
How many grams of calcium oxide will be produced in a closed vessel containing 20.0 kg of calcium and 20.0 kg of oxygen gas if the reaction goes to completion? (atomic mass of calcium = 40.1 amu)
Answer:
Explanation:
The mass of Calcium oxide that will be produced in a closed vessel is 27984.1311 g. The Number of moles is defined as given mass over molar mass.
Calculation of Number of moles:
Number of moles = Given mass / Molar mass
For Calcium :-
Mass of calcium = 20.0 kg = 20000 g ( 1 kg = 1000 g )
Molar mass of calcium = 40.078 g/mol
Thus,
Number of moles = 20000 g / 40.078 g/mol
Number of moles = 499.02 moles
For oxygen gas :-
Mass of oxygen gas = 20.0 kg = 20000 g ( 1 kg = 1000 g )
Molar mass of oxygen gas = 31.999 g/mol
Thus,
Number of moles = 20000 g / 31.999
Number of moles = 625.19 moles
According to the given reaction:
2 moles of calcium reacts with 1 mole of oxygen gas
Also,
1 mole of calcium reacts with 1/2 mole of oxygen gas
So,
499.0269 mole of calcium react with mole of oxygen gas
Moles of oxygen gas = 249.5135 moles
Available moles of oxygen gas = 625.0195 moles
Limiting reagent is the one which is present in small amounts. Thus, calcium is limiting reagent.
The formation of the product is governed by the limiting reagent. So,
2 moles of calcium produces 2 moles of calcium oxide
So,
1 mole of calcium produces 1 mole of calcium oxide
Also,
499.0269 moles of calcium produces 499.0269 moles of calcium oxide
Moles of calcium oxide = 499.0269 moles
Molar mass of calcium oxide = 56.0774 g/mol
Mass of calcium oxide = Moles × Molar mass = 499.0269 * 56.0774 g = 27984.1311 g
27984.1311 g of calcium oxide will be produced.
In the united states, what is minority status usually based on?
Answer:National,cultural and religious identityidentityidentity.
Explanation:
In which type of echinoderm are tube feet not used for movement? sea star brittle star sea urchin sea cucumber
Answer:
brittle star
Explanation:
hi <3
can you give me a brainliest please
I hope I hellpted you
Answer:
b
Explanation:
brittle star
Write a formal persuasive e-mail to a community leader to address a social concern. read more >>
A persuasive essay is an argumentative writing that can be used to prove that an idea is correct using a reliable source.
What can be a social concern of a community?A social concern in a community can be those activities or materials that are lacking in a society that would have helped in the basic needs of its occupants.
Example of some basic needs that can cause social concern include:
Clean Water supply,Electricity,Health facilities and equipment.Also note that you should address your complaints stating the reason why the lacking needs should be met.
The email should be written as follows,
Sir,
I, a member of your community, would love to use this opportunity to appreciate your wonderful works in our community. Your goodness has been a source of inspiration to us all.
In as much as we have received alot of basic needs from your leadership, however, lack of constant clean water supply has constantly posed a threat to our health.
It would mostly be appreciated if this need is urgently addressed by your administration.
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A certain reaction is first order in reactant a and second order in reactant b. if the concentration of both reactants are doubled, what happens to the reaction rate?
Answer:
Death Note
Explanation:
Now this is how Death Note works in a note book ya wrote someone first and last name and then they die IS THAT GREAT oki death is near but now as close as you think your probaly stillyounge so live you life to the fullest and BE CONFUSSLED
What is the opportunity cost of an investment? a. the combined values of the other opportunities available b. the value of the next most valuable opportunity c. the marginal benefit of the investment d. the volatility of the investment please select the best answer from the choices provided a b c d
Opportunity cost is the loss of the profit when an alternative resulting in loss is chosen. The opportunity cost of the investment is the value of the most valuable opportunity. Thus, option B is correct.
What is an opportunity cost?Opportunity cost includes the let go of one opportunity when the other alternative is chosen. The loss of the most beneficial option is called the opportunity cost.
It is also called alternative forgone as the choice of an alternative includes the loss of the profits that could have been possible when the other option was chosen.
Therefore, option B. opportunity cost of the investment is the value of the next opportunity.
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Answer:
b
Explanation:
i did it
The shortest sides of two similar polygons have lengths in the ratio 2:5. the perimeter of the smaller polygon is 20. the perimeter of the larger polygon is 125 100 50
Answer:
A similar triangle has the same ratio on every side, so that means the perimeter has the same ratio as well. Set up the proportion: 2/5 = 20/xmultiply the means and extremes to get2x = 100divide both sides by 2x = 50The perimeter of the larger polygon is 50
Explanation:
Not sure if this is right but hope this helped!
Compare public debt to intragovernmental debt brainly
The difference is that public debt is owed to creditors while intragovernmental debt is owed to another part of government.
How to Classify Debts?The public debt is defined as the amount of money that a government owes to creditors. Now, this debt held by the public is a large portion of the national debt.
However, Intragovernmental debt is defined as debt that one part of the government owes to another part of the government. Generally, this debt is held in government trust funds, such as the Social Security trust funds.
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Of the 34 cars in a parking lot, 12 are blue, 8 are red, 4 are white, and 10 are silver. in simplest form, what are the odds in favor that the next car that leaves the lot will be red or white? a. 6:11 b. 6:17 c. 17:6 d. 11:6
Answer:
see the attachment with the answer
Describe the energy conversions that occur as a microwave oven heats a cup of water. give at least two energy conversions. explain how these energy conversions affect the process of heating water particles in a cup using a microwave. enter your answer in the box provided.
The thermal energy increases the temperature of the oven which results in the heating of the water.
What is an energy conversion?The conversion of energy means the potential of the energy is changed into the other form.
The energy conversions that occur as a microwave oven heats a cup of water.
First, the electrical energy is converted into microwave energy and this microwave energy increases the temperature of the microwave oven which means the microwave energy is converted into thermal energy.
The thermal energy increases the temperature of the oven which results in the heating of the water.
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Contemporary abstract algebra 8th edition solutions
An example of Contemporary abstract A., question is "This software checks the validity of a Postal Service money order number. Use it to verify that 39539881642 is valid".
What is software validity?Software validation is known to be the method setting up documented evidence that shows that a computer system has been installed rightly.
Note that If input is“39539881642” one can say that the output have to be the same with the input.
Since the input number in the above question is 39539881642, therefore, we can say that money order number is valid.
In another scenario, when input is“39539881632” and when it has one digit to be incorrect, Then we can say that your input number will be 39539881632 and thus, the number is not valid as a result of the the error that was detected.
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What is the median for 7.5, 8, 8.5, 7.5, 8, 8.5, 7.5 5, 10, 6, 8, 8, 8.5, 5.5, 6, and 8.5
Answer:
The median is 8
How is anger different from aggression? a. anger is an emotion, and aggression is a description for a behavior. b. anger is temporary, and aggression is a permanent behavioral trait. c. anger is a description for behavior, and aggression is an emotion. d. anger is a permanent behavioral trait, and aggression is temporary. please select the best answer from the choices provided a b c d
Answer:
A: anger is an emotion, aggression is a description for behavior
Explanation:
got it right edg2022
Songs like "fortunate son" by creedence clearwater revival, "give peace a chance" by john lennon, and "i-feel-like-i'm-fixin'-to-die rag" by country joe and the fish were just three popular songs (out of hundreds) that dealt with
Answer:
peace
Explanation:
this songs purpose was to preach peace and convince people about how the vietnam war was bad and the country should make peace
