how is the mississippi river Important to the US development

Answers

Answer 1

Answer:

It is also one of the world's most important commercial waterways and one of North America's great migration routes for both birds and fishes. Native Americans lived along its banks and used the river for sustenance and transportation.

Explanation:


Related Questions

The cells inside our nerves are called what?​

Answers

Answer:

Cells of the nervous system, called nerve cells or neurons, are specialized to carry "messages" through an electrochemical process. The human brain has approximately 86 billion neurons. ... Neurons are surrounded by a cell membrane. Neurons have a nucleus that contains genes.

Explanation:

Answer:

Neurons are the information-processing cells of the nervous system. They are categorized as receptors, interneurons, or effectors, depending on their function. The dendrites of a neuron provide an extended receptive surface for the cell, increasing greatly the number of synaptic inputs.

How do spores survive even after the plant has died?
Spores are protected in a protective covering preventing it from drying out.
O Spores have special chemicals that prevent it from dying.
Spores are buried under rocks.
O Spores can naturally live forever.

Answers

Answer:

spores have special chemicals that prevent ot from

which on is viviparous :
a. shark b. frog
c. Whale d. lungfish​

Answers

Answer:

whale

Explanation:

because they give direct birth to young ones


HELP PLEASE !!!!
Which statement best describes the relationship between an allele's frequency and its dominance?
o Frequency and dominance are the same thing.
A dominant allele always has the highest frequency.
A dominant allele usually has the highest frequency.
o Frequency results from environmental stresses, not dominance.

Answers

Explanation:

Frequency and dominance are the same thing. A dominant allele always has the highest frequency. A dominant allele usually has the highest frequency.

Help me please I really need this tomorrow

Answers

19. place moth balls in the closet and observe after several days.

20. whenever wax or a candle burns it turns from solid to liquid but again at room temperature it turns to solid

21. evaporation, condensation, precipitation

22. it produces new substances

23. vinegar Bubbles when baking soda is added

24. steam

which organsism transform nitrogen to a form this useful to plants? a. bacteria b.animals c.fungi d.humans

Answers

Answer:

a. bacteria

Explanation:

There are nitrogen-fixing bacteria whose sole purpose is to transform nitrogen into a form which can be used by our friends called the plants.

Answer:

A. Bacteria

Explanation:

Nitrogen-fixing bacteria are capable of transforming it into fixed-nitrogen particles, that are usable by plants

Which of the following statements is false?
А) Glucose molecules are the basic units of cellulose
B) Glycerol is a basic unit of oils.
C) Simple sugars like glucose are the basic unit of fats.
D) Amino acids are basic units of proteins.

Answers

The answer is b I’m not sure I think
The answer is B (Glycerol is a basic unit of oils)

Match the type of ELISA with what it is used to detect. Question 2 options: detects presences and concentration of antigen/protein detects presences and concentration of antibody 1. indirect ELISA 2. sandwich ELISA

Answers

Answer:

ELISA is a technique of enzyme linked immunosorbent assay.

Explanation:

The full form of Elisa is enzyme linked immunosorbent assay. The ELISA technique is a boichemical technique that is used to measure the amount of protein or the antibody in a solution and is divided into three types :

Competitive ELISADirect ELISA or Sandwich ELISAIndirect ELISA

1. Indirect ELISA ---  detects the presences and concentration of the antibody.

2. Sandwich Elisa or Direct ELISA  ---  detects the presences and concentration of the antigen/protein.

Which is found in both DNA and RNA?
A. thymine
B. uracil
C. adenine
D. ribose

Answers

Answer:

in DNA it is deoxyribose and in RNA it is ribose

Answer:

C. Adenine

Explanation:

DNA and RNA both have adenine, guanine, and cytosine.

DNA has thymine, which RNA does NOT have.

RNA has uracil, which DNA does NOT have.

Excessive sugar intake is related to development of dental caries because
A. oral bacteria produce acids that dissolve tooth enamel when they metabolize sugars.
B. sugar leaches calcium and phosphorus out of teeth.
C. salivary amylase dissolves tooth enamel during carbohydrate digestion.
D. sugars make the saliva more alkaline, causing damage to tooth enamel.

Answers

Answer:

The correct answer is A.

Explanation:

Dental caries is a chronic dynamic disease or process that occurs in the tooth structure in contact with microbial deposits. Among the factors that favor the development of dental caries is the excessive consumption of simple sugars. The sugars consumed with the diet constitute the substrate of the oral microflora and initiate the process of cariogenesis. Streptococcus can ferment sugars in the diet to produce primarily lactic acid as the end product of metabolism. This lowers the pH and demineralizes tooth enamel. Cariogenic microorganisms are characterized because they are capable of transporting carbohydrates in competition with other microorganisms, which could be present in the plaque; the rapid fermentation capacity of this substrate made up of sugars and starch and its acidic capacity - acid products - and acidic acid - capable of performing various functions under conditions of extreme acidity. The marked decrease in pH will contribute to the demineralization of the tooth, favoring the appearance of carious lesions in hard tissues: enamel, dentin and cementum.

B.Fill in the blanka with the correct word given inside the box.


clay. water. sticky. loam
oxygen. sand. plants. particles
7.________ is made up of particles that are tightly packed together.
Very fine 8._________ of rocks can hold much water and become 9._________
when wet.While 10.________ is a mixture of sand and clay,this contains the right mixture of particles of silt,sand and clay.​

Answers

Answer:

7=clay

8=loam

9=sticky

10=loam

What is produced/made when our food is burned?
___+___+___

Answers

Answer:

it should be ( carbon dioxide, oxygen, and energy

Explanation:

Explanation:

Oxygen /carbon dioxide and energy

This is the process happens continuously inside our body .This is called respiration

The inferior region of the brain stem, the __________ houses many vital autonomic centers involved in the control of heart rate, respiratory rhythm, and blood pressure.

Answers

Answer:

The inferior region of the brain stem, the medulla oblongota houses many vital autonomic centers involved in the control of heart rate, respiratory rhythm, and blood pressure.

Explanation:

The medulla oblongata is the part of the brain that joins the spinal cord and forms the lower part of the brain stem. In the bulb there are ascending (sensory) and descending (motor) fascicles that communicate the spinal cord with the brain, in addition to numerous nuclei or centers (masses of gray matter) that regulate various vital functions. The medulla oblongata has the function of controlling vital and unconscious elements such as the heartbeat and blood pressure. Thus, it is responsible for maintaining the heart rate and regulating vasoconstriction. Also, it manages the control of respiratory function, maintaining it at all times.

Part Two: Position Paper What's your position about building roads in the rainforest? Write a paper that explains your position. Use facts from your research to support your position. How would humans and different parts of Earth be affected by the construction? Is there any argument against your position?

Answers

Answer:

We should not be building roads in the rain forest. Some reasons behind this include trees produce oxygen, animals leaving their natural habitat would not survive, and it would only increase pollution. Research states that if pollution increases any more, the Ozone protecting us will deteriorate. Other research states that if animals lose their natural habitat and have to adapt to a new environment, they are not very likely to survive. And not surviving means that the food chain will break, affecting everything above it, and that could also include us. This concludes why we should not build roads in rain forests.

Explanation:

Sorry if its short, but here <3

No roads should be build in the rainforests.

What do you mean by rainforests?

"A luxuriant, dense forest rich in biodiversity, found typically in tropical areas with consistently heavy rainfall."It's a moisture dependent vegetation.Why no roads?To build a road a vast area full of vegetation will be cut down.This will adversely affect the climate and habitats of organisms living there.This will also result in scarcity of rainfall.This results in interference of humans on the habitat of that area.

Hence, building of road should be avoided in rainforests.

To learn more about rainforests here

https://brainly.com/question/235998

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Multiple Choice Questions.
1. The leaf is attached to the stem at
(a) Petiole
(b) Node
(c) Spine
(d) Internode​

Answers

Petiole, hopefully this helps you

Fill in the blank question. The initial effect of a stimulus on a sensory receptor is a small, local change in membrane potential called a(n)

Answers

Answer:

The initial effect of a stimulus on a sensory receptor is a small, local change in membrane potential called a(n) receptor potential.

Explanation:

The process used by sensory receptors to transform the physical energy of the sensory stimulus into action potentials, the fundamental unit of information in the nervous system, is called sensory transduction. The entrance of positive charges towards the interior (mainly Na +), will cause a depolarization; while if there is an exit of positive charges from the interior (mainly K +) then hyperpolarization will occur. This change in membrane potential is called the receptor potential. A receptor potential is then a local potential that can sometimes represent the only response that results from the transduction process, for example in the taste sensory cell.

3
Which power does this expression simplify to?
[(7)(79)
1
722
1/ 를
O 74
O 7"

Answers

Answer:

c one

hopeit may help you

hope it may help you

Select the correct locations on the image.
in which four locations do hurricanes occur?


Answers

Answer:

Explanation:

Hope that helps                                      

Cationic detergents are surface active agents, also known as ______, which damage bacteria by binding bacterial surface proteins and disrupting ______.

Answers

Surfactants; cell membrane

Felicity draws this diagram on the board to explain one
of Mendel's experiments for her classmates. She says
that it shows the cross between two first-generation
offspring. What is the error in her diagram?
All
peas should be green.
All peas should be yellow-green.
One pea should be green and three peas should be
yellow.
O One pea should be yellow and three peas should
be green.

Answers

Answer:

The right answer is C

Explanation:

Answer:

The right answer is C

Explanation: Just got it right on edge 2022

During pulmonary ventilation, relaxation of the diaphragm and external intercostals ________ and air flows out of the lungs. increases the pressure in the thoracic cavity flattens the floor of the thoracic cavity increases the volume of the thoracic cavity expands the rib cage stimulates the phrenic nerve

Answers

Answer:

Increases the pressure in the thoracic cavity

Explanation:

During pulmonary ventilation, relaxation of the diaphragm and external intercostals increases the pressure in the thoracic cavity and air flows out of the lungs.

Pulmonary ventilation involves the exchange of air in the body. The exchange mainly takes place between the lungs and the the blood. When the lungs take in oxygen it distributes it to other parts of the body after which the byproduct is expelled in the form of Carbon dioxide.

The diaphragm and intercostal muscles are found close to the chest(thoracic) region such that when air is expelled it produces a similar effect such as relaxation of the diaphragm which also makes the chest muscles go down and exert pressure. This mechanism aids the expulsion of Carbon dioxide from the lungs.

1 poi A student draws a diagram of a plant cell. The diagram is 40mm in width. The plant cell is 0.02mm in width. What is the magnification of the student's drawing? A. 0.005 B. 0.08 C. x200 D. x2000 ​

Answers

Answer:

D. x2000

Explanation:

magnification = image(drawing size)/actual size

magnification = 40/0.02

magnification = x2000

The magnification of the diagram is x2000. So, the correct option is (D).

What is Magnification?

Magnification is the process of magnifying something. It enlarge the apparent size and not the physical size. This type of enlargement is certainly quantifiable. It also refers to the action of visually enlarging an object with the help of lenses.

This concept exist in two forms-

1. By microscope

It makes small objects appear large

2. By telescope

It makes a distant object which appear closer and the images are more clear and defined.

The formula of magnification represents the ratio of the height of the image to the ratio of the height of the object.

Magnification = image/actual size

For given example, magnification = 40/0.02

magnification = x2000

Thus, the magnification of the diagram is x2000. So, the correct option is (D).

Learn more about Magnification, here:

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What about cellulose makes it ideal for structural support?

Answers

Answer:The answer would be D!

Explanation:

A hydrogen bond is one of the strongest molecular bonds. :)

What's the importance of sun in power supply??​

Answers

Answer:

It provides solar energy to supply power through solar panels

Answer:

The sun provides more than enough energy to meet the whole world's energy needs, and unlike fossil fuels, it won't run out anytime soon. As a renewable energy source, the only limitation of solar power is our ability to turn it into electricity in an efficient and cost-effective way.

Explanation:

Follow me, thank you.

Glucose molecules provide energy to power the swimming motion of sperm. In this example, the sperm are changingA) chemical energy into kinetic energy.B) chemical energy into potential energy.C) kinetic energy into potential energy.D) kinetic energy into chemical energy.E) kinetic energy into thermal energy.

Answers

Answer:

A

Explanation:

The correct answer would be that the sperms are changing chemical energy to kinetic energy.

In order to power the movement of the sperm cells, chemicals in the form of glucose molecules are hydrolyzed and the resulting energy from the reaction is used to power the movement of the sperm cells.  Moving sperm cells possess kinetic energy. Thus, we can say that the chemical energy in the glucose molecules is converted to kinetic energy in the sperm cells.

The correct option is A.

Rate each question from 1 to 5 ❑How much do you depend on natural ecosystems that you use for recreation (camping, fishing, hunting, hiking, swimming, boating)? ❑How much do you depend on natural ecosystems for the food you eat? ❑How important is preserving natural ecosystems to you? ❑How willing are you to sacrifice things in your life to make sure that natural ecosystems stay unharmed in the future?

Answers

Answer:

❑How much do you depend on natural ecosystems that you use for recreation (camping, fishing, hunting, hiking, swimming, boating)?  4

❑How much do you depend on natural ecosystems for the food you eat? 5

❑How important is preserving natural ecosystems to you? 5

❑How willing are you to sacrifice things in your life to make sure that natural ecosystems stay unharmed in the future? 4

Explanation:

The questions are closely related to ecosystemic services and how humans make use of it. Let us first review theoretical concepts, and then discuss the rating of the questions.

Ecosystem services refer to all the benefits that human beings can get from ecosystems, not only for survival but also for good life quality. There are four types of ecosystem services:

• Provision or supply:

These are the products obtained by nature to be used or consumed, directly or with previous processing. Among them, we might mention food, clear freshwater, fertile soils, geotic materials, raw materials (used for clothing, construction), renewable fuels, biochemical compounds, pharmacological/medicinal resources, among others.

• Regulation:

Refers to ecological processes that improve life. Among others, we might mention climate regulation, CO² absorption, water purification, air purification, erosion control, natural disaster avoidance such as flooding, soil fertility maintenance, waste recycling, pest/plague control, etc.

• Cultural:

Refers to not the material benefits. Ecosystems also provide a recreational place or area to spend time, learn, enjoy spiritual/religious space, and are a source of inspiration. It is considered to be cultural patrimony and the source of scientific knowledge.

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I answered the questions from my personal point of view, and considering 5 as the most important topic, and 1 as the less important. So, from most important to less important is 5, 4, 3, 2, 1.

How much do you depend on natural ecosystems that you use for recreation (camping, fishing, hunting, hiking, swimming, boating)?

Probably, we as species, do not need these activities to survive. However, we need them to have good mental health. These are activities that we enjoy and that produce satisfaction. Whenever we do things that we enjoy our organism secretes hormones that make us feel happy. This feeling is important when people are stress about any personal situation. So, this question does not get the highest rate, but it gets a significant one, a 4.

How much do you depend on natural ecosystems for the food you eat?

Basically, we depend on nature and the ecosystem to get food and any kind of supply. If the ecosystems are damaged and altered, there is a general disbalance, and every form of life is affected. Some species might even get extinct. If we keep damaging the environment as we are doing currently, we will get to the point of not having any supply available to survive. So this is one of the most important questions, which gets the highest rate, a big 5.

How important is preserving natural ecosystems to you?

This question is closely related to the anterior one. It is very important for us as a species to realize that we depend on nature 100%, that we need to take care of it and preserve ecosystems all around the world. With no healthy and equilibrated ecosystems, we do not get to survive. So this is the other question that gets the highest rate, 5.

How willing are you to sacrifice things in your life to make sure that natural ecosystems stay unharmed in the future?

This one is kind of difficult to answer, We could say that we are 100% willing to sacrifice to make sure ecosystems stay unharmed. However, we are so used to consumption, technology, confort, an easy lifestyle, and etc, that would be really difficult for us to sacrifice everything that we are used to. Just imagine yourself giving up your cellphone or your computer. Technology is one of the most polluting industries in the world. But we depend so much on it, that seems almost impossible to imagine us without it. This is why my score for this question is a 4. Personally, I surely would sacrifice too many useful things, but I find it hard to sacrifice some others.  

ILL GIVE BRAINLIST PLS HELP!!!!!!!​

Answers

Explanation:

The answers to number 10 are

I for homeostasis

B for metabolism

B for biosphere

E for ecosystem

I for system

E for biology

the answer to no. 11 are

B for biodiversity

B for metabolism

G for organism

G for biosphere

I for cell

I evolution

hope it helps

A simple test to differentiate between Staphylococcus and Streptococcus is the addition of H2O2 to a colony to see if bubbles form, which are positive for catalase. Which organism would be positive

Answers

Answer:

The Correct answer is B, Staphylococcus.

Explanation:

The Catalase test is used to differentiate Staphylococci (Catalase positive) from Streptococci (Catalyst negative). The enzyme catalase is produced by bacteria that respire using oxygen and protects them from the toxic by-products of oxygen metabolism.

Catalase positive bacteria includes strict aerobes as well as facultative anaerobes. Catalase negative bacteria maybe anarobes or facultative anarobes that only ferment and don't respire using oxygen as terminal electron acceptor.

Catalase converts hydrogen peroxide to water and oxygen gas. Though both Staphylococcus and Streptococcus are gram positive bacteria, only Staphylococcus produces catalase enzymes.

Myoglobin levels are higher in Tibetans and other ethnic groups that live at high altitudes. Explain the benefit of higher myoglobin levels for individuals living at high altitudes.

Answers

Answer:

They are able to take up and store more oxygen in their muscles

Explanation:

According to Oxford dictionary, myoglobin is ''a red protein containing haem, which carries and stores oxygen in muscle cells. It is structurally similar to a subunit of haemoglobin.''

The fact that Tibetans have a high level of myoglobin implies that they are able to take up and store more oxygen in their muscles since myoglobin is involved in storage of oxygen in muscle cells. Hence elevated levels of myoglobins enables the muscle cells to work more effectively.

the most common mineral group is broken into the subgroups of ferromagnesium and non ferromagnesium

Answers

Answer: The answer would be Silicate

Explanation: They are made out of silicon and oxygen

Other Questions
Calculate the mass percent of each component in the following solution.159 g NiCl2 in 500 g water% Nicla% water Revise this paragraph from the essay on voter identification, which focuses on one of the claim's supporting reasons. As you revise the paragraph, focus on:1. making sure the point of the paragraph is precise and related to the overall claim in the essay,2. using words, phrases, and clauses to link major ideas in the paragraph,3. organizing ideas in a logical way,4. stating and addressing a counterclaim,5. maintaining a formal style and objective tone, and6. correcting MLA citation errors.Underline any portions of the original paragraph that you include in your version of the paragraph. (30 points).Paragraph to be revised:Essay claim: Laws requiring people to show photo identification in order to vote decrease voter participation.Lots of people don't have photo identification. Requiring people to show photo identification to vote would keep those without this type of identification from voting. Those who often don't have identification include elderly individuals who no longer drive and citizens living in high poverty areas where transportation is limited. They would be denied the chance to vote. Sociologist Mark Abernathy writes, "requiring photo identification in order to vote essentially eliminates a whole population of American voters. These voters are part of society, but they are denied a basic right guaranteed to all Americans over the age of eighteen. Elections are then determined by only a portion of the population, not the entire population" (page 820 of the article "Photo Identification Disenfranchisement"). Some people think this is just not true. Ria Olberson, an economist at Alabaster University, states, "few Americans are without drivers' licenses. Even if the license is expired or revoked, it still counts as photo identification. To claim that requiring identification disenfranchises a segment of the American population is simply inaccurate" (page 101). Olberson is just wrong! A lot of people don't have licenses because they either don't need them or they don't want them. Consider people living in major cities. They have no reason to get driver's licenses: public transportation. This extremely large group of people would be forced to obtain driver's licenses to participate in a process that they are guaranteed as citizens of the United States. Find g(4) and f(g(4)) f(x)=x^2-x+1 g(x)= 3x-5 Luca is thinking about joining a game because of a challenge in his family environment which situation most likely his decision decision Zoe is a party planner. She orders cupcakes and sheet cakes from Creative Cakes whenever she needs beautiful cakes to serve. One sheet cake serves 24 people and 2 dozen cupcakes serve 24 people. For the Benson's bridal shower she ordered 8 dozen cupcakes and 3 sheet cakes and paid $160.81. For the Nygaard's 50th wedding anniversary she ordered 6 dozen cupcakes and 15 sheet cakes and paid $342.33. She is planning a graduation party for her niece's high school class. She wants the party to be nice but she offered to pay for the cakes herself so she wants to choose the most economical plan. Zoe estimates 250 people will attend the party. To prepare a standard (calibration) curve for a spectroscopy experiment, start by preparing ___________ with ______________ Then, measure the ______________ of each solution at _____________ and create a plot of ____________ for the measured values. Finally, find the best-fit line of the data set. Please help explanation if possible The polygons in each pair are similar. Find the scale factor of the smaller figure to the larger figure. Reflect Triangle ABC in BC. What kind of figure will result? How would your answer change if ABC is isosceles? a right triangle with right angle at A? a right isosceles trianglewith right angle at A? Charlene is a salesperson. Let y represent her total pay (in dollars). Let x represent the number ofitems she sells. Suppose that x and y are related by the equation y=32x + 1900.What is Charlene's total pay if she doesn't sell any items?A. $32B. $1,900C. $3,200D. $19 in the photoelectric effect, what happens when light hits the metal 1. What services does the Purdue University Online Writing Lab (OWL) offer?O A. Support of all facets of writing, including MLA and APA citation and documentation stylesOB. A plagiarism checker to be sure that an essay you're ready to submit doesn't include plagiarismO C. A citation generator that will automatically create citations based on entered informatiionO D. An essay evaluation tool that will show where in-text citations are needed for quoted references A small size is advantageous for marine organisms because it ________. increases the surface area to volume ratio that in turn reduces frictional resistance to sinking increases the ability to absorb nutrients increases the ability of wastes to diffuse out of the organism All of the above what can be broken but never held? The quadratic equation x^2 + 3x + 50 = 0 has roots r and s. Find a quadratic equation whose roots are r^2 and s^2. what is the HCF of 7 and 13 Give reason Pascal is a derived unit ASAPWhich of the following gases will have the highest rate of effusion at a given temperature? Cl2 He O2 Ne Determine whether the following polygons are similar. Give a reason why lack of roughage in diet often lead to constipation?