Characteristics of Living Things
7. The basic unit of organization of living things is a(n)
A. atom B. organism
C. cell
D. organ
8. Storing energy obtained from food is an example of
A. evolution B. homeostasis
C. response
D. growth
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9. The passing of genes from one generation to another is
A homeostasis
B. response
C. growth D. heredity
10. The main function of reproduction is to
A. have enough male and female to reproduce
B. overpopulate
D. to be able to replace themselves.
C. grow
11. The milkweed plant feeding the caterpillar is an example of
A. interdependency.
C. preparing to die after a long life.
B. reproduction
D. heredity
12. Adaptation is very important to species because it allows them to
A. grow and become successful
C. Die
B. produce offspring better equipped to survive.
D. produce many offspring.

Answers

Answer 1

Answer:

bbbc

Explanation:

all of these were to long so


Related Questions

Following antigenic stimulation, phosphorylation of _________ relieves inhibition of the transcription factor

Answers

Answer: zap70, ITAM.

Explanation:

An antigen is any substance that is capable of stimulating an immune response by activating lymphocytes, which are the body’s infection-fighting white blood cells. Examples of antigens could be proteins that are part of bacteria or viruses or components of serum and red blood cells from other individuals, all of them are foreign antigens originated outside the body. However, there can also be autoantigens (which are self-antigens), originated within the body. In normal conditions, the body is able to distinguish self from nonself. And the antigens that represent a danger induces an immune response by stimulating the lymphocytes to produce antibody or to attack the antigen directly. This is called an antigenic stimulation of the immune system.

ZAP-70 (Zeta-chain-associated protein kinase 70) is a protein that is part of the T cell receptor, thereby it plays a critical role in T-cell signaling. When the TCR (receptor of T cells) is activated by the presentation of the specific antigen through the MHC, a protein called Lck acts to phosphorylate the intracellular CD3 chains and the ζ chains of the TCR complex, allowing the binding of the cytoplasmic tyrosine kinase, ZAP-70. Lck then phosphorylates and activates ZAP-70, which in turn phosphorylates another molecule in the signaling cascade called LAT (short for Linker of Activated T cells), a transmembrane protein that serves as an anchor site for several other proteins. The tyrosine phosphorylation cascade initiated by the Lck culminates in the intracellular mobilization of calcium ion (Ca2+) and the activation of important signaling cascades within the lymphocytes. These include the Ras-MEK-ERK pathway, which is based on activating certain transcription factors such as NFAT, NFκB and AP-1. These transcription factors regulate the production of of certain gene products, most notably cytokines such as interleukin-2 that promote the long-term proliferation and differentiation of activated lymphocytes.

The ITAM motifs (immunoreceptor tyrosine-based activation motif) are sequences of four amino acids present in the intracellular tails of certain proteins that serve as receptors within the immune system. Thus, some receptors such as the TCR have ITAM sequences that, when activated, trigger an intracellular reaction based on consecutive phosphorylations.  Kinases are recruited for this purpose.

So, ZAP-70 is a protein tyrosine kinase with a role in T-cell receptor signal transduction. During T-cell activation, ZAP-70 binds to ITAM and becomes tyrosine phosphorylated. The binding of ZAP-70 to the phosphorylated ITAM is able to activate its kinase activity, and relieves the inhibition of the transcription factor which regulates genes that are involved in the immune reaction.

A decrease in muscular activity or damage to neurons that attach to skeletal muscle can lead to a reduction in the size of muscle called

Answers

Answer:

The correct answer is atrophy

Which submersible vessel has been used deep-sea research

Answers

Answer:

The challenger

Explanation:

Used to explore the south pacific, mainly the Mariana trench

Answer:

Which submersible has been used for deep sea research? Alvin Alvin (DSV-2) is a crewed deep-ocean research submersible owned by the United States Navy and operated by the Woods Hole Oceanographic Institution (WHOI) in Woods Hole, Massachusetts.

Explanation:

I need help with this

Answers

Answer:

I know the answer

Explanation:

Yes

Yes

Yes

When the body cells are hypotonic to the blood plasma, water will move from intracellular fluid to extracellular fluid.
A. True
B. False

Answers

Answer:

True

Explanation:

What term matches the following definition: " ...a fundamental evolutionary process that results in both the adaptation of species to their environments and the generation of biodiversity (new species)"?

Answers

Answer:

a.Natural selection

b.Evolution

c.Artificial selection

d.Co-evolution

The correct option is A.

Natural selection.

Explanation:

The correct answer is natural selection because Natural selection is an evolutionary process which was discussed by Charles Darwin in 1859, In one of his theory that it is the ability of organisms to develop traits or characteristics that will help them to adapt and ensure their survival in their environment and then passing or transferring these new traits to new species or offsprings over generations through reproduction.

Use the following scenario to answer the next following question(s):

You and your friends go to the beach for vacation. You all walk down to the beach to go swimming. When you get there, you see the water is murky and green, and there are algae blooms floating on top.

Reference: Ref 6-3

If it is excess nutrients which are feeding the algae blooms and lowering the oxygen content in the water, that process is called:
A. nutrient cycling.
B. nitrification.
C. eutrophication.
D. hypoxia.

Answers

Answer:

eutrophication

Explanation:

Eutrophication refers to a situation in which the aquatic environment becomes excessively enriched with nutrients. This leads to algal blooms in aquatic habitats such as lakes. These nutrients come from Fertilisers used in farming, which find their way into water bodies through run-off thereby increasing nutrient levels.

Excess nutrients causes phytoplankton to grow and reproduce at an alarming rate resulting in algal blooms. This bloom disrupts the balance in the ecosystem leading to many problems.

The algae may end up using all the oxygen in the water, causing oxygen shortage for aquatic life. Some of the algae may die, their decay may lead to further oxygen depletion. As oxygen is depleted, aquatic organisms may also begin to die.

A purebred tall pea plant is cross-pollinated with a tall, can you please help
heterozygous pea plant. Use a Punnett square to determine the probability the offspring inherita
recessive short allele. (I point)
75%
25%
0%
50%

Answers

Answer:

50%

Explanation:

because if you use the box method you see that half receive a short alele

   T     t

T TT  Tt

T TT   Tt

Which medical conditions are associated with large amounts of fat and sugar in your diet? Select three options.

Answers

Answer:

gall bladder disease

hypertension

osteoarthritis

Answer:

diabetes

heart disease

obesity

Explanation:

Which sentence about protist is accurate

Answers

Answer:

there are no sentences

Explanation:

If tall is dominant over short, and yellow seed is dominant over green, how would you write the genotype of a pea plant that is heterozygous for tall, and that produces yellow seeds

Answers

Answer:

The answer has been written in paper and the image of the paper has been attached. Feel free to raise any doubt.

Which of the circumstances below most accurately describes conditions that are likely to permit a robust anti-tumor adaptive immune response?

a. A tumor with high expression of proteins that have mutations in sequences encoding HLA-binding peptides.
b. A robust acute inflammatory response to PAMPs expressed specifically by tumor cells.
c. Anti-tumor T lymphocytes that have high expression of CTLA-4.
d. A tumor with high expression of PD-L1.

Answers

Did you ever figure out the answer to this question?

The study of PAMP-DAMP complexes is vital to the advancement of knowledge regarding inflammatory disorders in general and cancer in particular. Therefore, option (B) is correct.

What is PAMP-DAMP complexes?

Increasing evidence links inflammation to cancer, and at the root of inflammation are PAMPs and DAMPs (DAMPs). Microorganisms contain PAMPs, which are detected by pattern recognition receptors on monocytes and DCs (PRRs). PRR activation produces pro-inflammatory cytokines.

A robust immune response requires endogenous chemicals that pose 'risk' to self-tissues and are created by injured or stressed cells; these are DAMPs, which also trigger inflammation. PAMPs and DAMPs each have about 100 receptors. PAMPs and DAMPs interact; a PRR can bind to both. In this system, PAMPs and DAMPs affect each other's activation threshold. Thus, PAMP-DAMP relationships describe inflammation in a predictable 'inflammatory code'

PAMP-DAMP complexes are key to understanding inflammatory disorders and cancer.

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Knowledge of the driver mutations underlying cancer has led to targeted therapeutics, such as the protein kinase inhibitor imatinib (trade name Gleevec) in cases of chronic myeloid leukemia. Cancer cells often become resistant to a given drug, so researchers continue searching for new drugs that target proteins that contribute to the cancerous phenotype. One recent promising approach uses drugs that lead to ubiquitination and proteasomal degradation of the target protein. Which of the following mutated proteins are good candidates for this approach?
A) oncogenes
B) proteins with loss-of-function mutations
C) proteins with gain-of-function mutations
D) tumor suppressor genes

Answers

Answer:

C) proteins with gain-of-function mutations

Explanation:

Gain-of-function mutations: In biology, the term "gain-of-function mutation" is described as one of the different types of mutation in which the altered or changed "gene product" consists of an entirely new pattern or molecular function associated with gene expression. However, the "gene-of-function mutations" are being always considered as "Semidominant or Dominant".

In the question above, the correct answer is option C.

Circle
1
2
Circle the most reactive metal in each set.
1) Magnesium / Potassium
2) Aluminum / Gold
3) Cobalt / Cesium / Calcium
4) Iron / Titanium / Potassium
5) Francium / Lithium / Beryllium
لی

Answers

Answer:

Explanation:

1) potassium

2)Aluminium

3) Cesium

4) potassium

5) Beryllium

Which location is least likely to experience a volcanic eruption? Α. an island hot spot, such as the island of Hawaii B. Hamilton County on the plains of central Texas с. a convergent boundary, as in the Ring of Fire D a volcanic island arc, such as the Aleutian Arc in Alaska

Answers

Answer:

i think that the answer is B. Hamilton County on the plains of central Texas i took the test

Explanation:

Hamilton County on the plains of central Texas is least likely to experience a volcanic eruption. Therefore, option (B) is correct.

What are volcanoes?

Molten rock and gases stored under the surface erupt through a volcano, generating a hill or mountain.

Active, inactive, or extinct volcanoes. Active volcanoes are likely to erupt again. Dormant volcanoes may erupt again. Extinct volcanoes won't erupt.Magma collects inside active volcanoes. The magma chamber's pressure forces it through rock channels and onto the planet's surface.

Volcanic eruptions can be violent or slow-moving. Volcanoes erupt through vents on the sides or a primary entrance at the top. The volcano's morphology depends on eruption rate and magma chemistry. Land and sea volcanoes exist. As lava cools and hardens, underwater volcanoes build mountains and ranges. When volcanoes rise above the ocean, they create islands.

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During cellular movement which filaments will be the ones that are responsible for attaching and pulling the other filaments along?

Answers

Answer:

Myosin

Explanation:

Myosin are the major components of both muscle and non muscle cells in striated muscles which is responsible for contraction or movement that convert chemical energy (ATP) into mechanical work thereby generating force and movement.

During cellular movement , myosin filament will be the ones that are responsible for attaching and pulling the other filaments along because Myosin binds to actin at a binding site on the globular actin protein,it also have ATP binding sites which hydrolyses ADP to ATP , ATP binding causes myosin to release actin, which make actin and myosin to detach from each other thereby causing attachment and contraction of other filaments

TRBP is a protein important for the formation of the RISC complex. Which of the following would you expect in cells with null mutations in TRBP?
a. Reduced siRNA-mediated mRNA degradation
b. Increased miRNA-mediated translational repression
c. Increased deadenylase-mediated mRNA degradation
d. Reduced proteasome-mediated protein degradation

Answers

Answer:

a. Reduced siRNA-mediated mRNA degradation

Explanation:

The TRBP (transactivation response element RNA-binding protein) is an RNA-binding protein that forms the Dicer complex, which is involved in epigenetic pathways such as those mediated by the RNA interference (RNAi) mechanism. RNAi is a key process where small non-coding RNAs such as, for example, small interfering RNAs (siRNAs) and microRNAs (miRNAs) can inhibit target gene expression at posttranscriptional level by different mechanisms (including the degradation of target mRNAs). A null mutation of this cofactor will alter the Dicer complex, thereby also affecting RNAi pathways mediated by small interfering RNAs.

The end result of a chemical reaction is always:
A. the formation of new kinds of elements.
B. the production of water molecules.
c. a substance that was not ope of the reactants.
ak
s
D. a molecule that does not have an electric charge.

Answers

Answer:

The formation of new kinds of elements.

When a chemical reaction is finished, a new type of element is made. because the chemicals couldn't react to eachother without making something new.

g UV radiation causes covalent dimerization of two subsequent ______ bases in DNA. This dimer is recognized and repaired by ______.

Answers

Answer: The options are not given.

Here are the options.

a. C and C ;;;; DNA photolyase

b. T and T ;;;;; DNA photolyase

c. C and C ;;;; DNA photoisomerase

d. T and T ;;;;; DNA photoisomerase

e. None of the above

Explanation:

UV light damages the DNA of cells that are exposed by making bonds to be formed between adjacent pyrimidine bases, usually thymines, in the DNA chains. The thymine dimers inhibit or hinder the DNA correct replication during reproduction of the cell.

UV radiation causes covalent dimerization of two subsequent T and T because Thymine bases of DNA directly absorbs a UVB photon . UVB light causes thymine base pairs close to each other in genetic sequences to bond together into pyrimidine dimers, thereby causing a disruption in the strand, which reproductive enzymes cannot copy.

UV-induced thymine dimers can be repaired by photoreactivation, in a process where energy from visible light is used to split the bonds forming the cyclobutane ring through the action of DNA photolyase, an enzyme that repaired damaged cause by uv radiation to dna.

For this task, you will imagine that you are a reporter for a scientific magazine. Your task is to explain the process of protein synthesis to someone who does NOT have a science background. Therefore, the explanation needs to be in simple enough terms for anyone to understand. You will organize your article in the following way: Structure and Function of DNA and RNA Transcription and RNA processing Translation Protein modification (general) You must also include the following terms: Double helix Helicase Codon Polymerase 5’ cap Poly (A) tail Introns Exons Splicesomes rRNA, tRNA, Mrna Ribosomes Anticodons E site, P site, A site Initiation Elongation Termination

Answers

Answer:

Please find the explanation below

Explanation:

Our nucleus is made up of a genetic material called deoxyribonucleic acid (DNA), which is a double-helical structure that stores the genetic information needed for the optimal functioning of any organism. DNA, alongside RNA are nucleic acids that are composed of NUCLEOTIDES subunits. The nucleotide consists of a pentose sugar (deoxyribose in DNA and ribose in RNA), nitrogenous base and a phosphate group.

However, the genetic information stored in the DNA molecule needs to be expressed in order to form useful products (proteins). This genetic expression is done in two stages viz: transcription and translation. Transcription, which is catalyzed by an enzyme called RNA polymerase is the process whereby the information stored in the DNA is used to synthesize a mRNA molecule. However, this mRNA molecule is considered pre-mature until it is processed. RNA processing occurs in three stages viz: 5' capping, polyadenylation, and splicing.

5' capping involves adding a 5' cap to the marks molecule. Polyadenylation involves adding a poly(A) tail to the mRNA molecule while splicing is the removal of introns (non coding regions) with the aid of Spliceosomes and joining of the exons (coding region). After processing, the mRNA becomes matured and ready to be translated.

Translation is the process whereby the mRNA transcript is used to synthesize a protein molecule. It occurs in the ribosomes (organelles for protein synthesis, a complex of rRNA and proteins) where the mRNA is read in a group of three nucleotides called CODON. The reading is done by the Anticodon of a transfer RNA (tRNA), which is complementary to the codon.

Translation occurs in three stages: initiation, elongation and termination. The mRNA attaches to the P site of the ribosomes (initiation) where it is attached to by a tRNA's anticodon complementary to it. The anticodon carries the amino acid corresponding the codon and shifts to the A-site. The addition of amino acid to the polypeptide chain continues (elongation) until a stop codon is encountered, which signals the end of the translation process i.e. termination. This causes the polypeptide (protein) to be released from the E-site.

The synthesized protein undergoes packaging and modification in the Golgi apparatus.

The ostrich is a bird. However, it has traits that are different from those of the birds we typically see flying around our neighborhoods. Using credible sources, investigate the environment and adaptations of ostriches to explain how they evolved to survive in their environment.

Answers

Answer:

According to National Geographic, ostriches are a part of a very small group of birds that cannot fly because unlike most birds, their small wings are not strong enough to carry their body for flight and their breastbone isn't balanced enough for flying. Birds that are unable to fly are called ratites.

A number of scientists namely Thomas Huxley, Richard Owen, and others have tried to show that these ratites are actually related to each other and eventually, it was discovered that they all had one thing in common, the way the bones at the roof of the mouth were arranged was similar to that of reptiles rather than other birds.

Richard Owen found and assembled the remains of an extinct ostrich skeleton which was an extinct moa and contrary to already held opinion, one ratite known as tinamous did not really fit with the profile of a ratite because it could fly, even though almost grudgingly and they possessed keeled sternum which suggests that they evolved from flying birds.

DNA tests showed that tinamous evolved within ratites and not necessarily as a separate entity. The tests also showed that moas and tinamous are related.

It was also speculated that the division of the supercontinent Pangaea southern side led to the separation of flightless ratite ancestors, causing each landlocked group to evolve and become the flightless birds we know today such as the ostrich, rheas, etc.

Answer:

An ostrich is an extremely large bird that lives in Africa. It can’t fly, but it has powerful legs that allow it to outrun most predators. Its flexible knees and two-toed feet enable it to run easily. An ostrich has strong leg muscles that it can use to kick large predators. It has claws on its wings to defend itself from predators and thick feathers to keep it warm at night. Ostriches have thick eyelids that protect their eyes from sandstorms.

Explanation:

(06.03 LC) Which of the following is an example of how HIV can be transmitted from one person to another? Contact between infected blood and a mucus membrane Contact between infected saliva and an open wound Contact between infected blood and skin Contact between infected saliva and lining of mouth

Answers

Answer:

i believe the answer is contact between a infected blood and a mucus membrane

Explanation:

Aquatic organisms in coastal areas face a variety of predators on land and in the water and air. Which ocean process exposes the coastal aquatic organisms to land-based predators? a. Changing wind patterns alter the ocean currents, changing tide levels. b. Daily tidal patterns leave areas exposed to the land for part of the day. c. The constant wave action generates nutrients that attract predators. d. The ocean conveyor belt raises and lowers the water levels on the coasts.

Answers

Answer:

b

Explanation:

The correct answer as to the ocean process that exposes the coastal organisms to land-based predators would be the daily tidal patterns that leave the coastal area exposed to the land for a part of the day.

Some parts of the coastal areas become exposed to land during certain periods of the day as a result of tidal waves. When this happens, the aquatic organisms occupying these coastal areas become temporarily exposed to land predators who hunt and kill them for food.

Therefore, the correct option is b.

basic question for fun . HOW TO FIGHT WITH TYPES OF VIRUS IN THE WORLD AND HOW GET RID FROM IT EXAMPLES: CORONA VIRUS, INFLUENZA, TYPHOID, HEPHATITISAND CHLOREA?

Answers

Answer:

Boost immunity power( follow these):

1. Have enougn sleep.

2. Be happy...overcome stress.

3.Do exercises frequently.

4. Have regular check ups ;these may help to diagnosis on early stage.

5. Consume the foods which boosts immunity.

6. Be mentally strong.

Explanation:

There isn't proved ideas ...however, we can fight by making our immune system strong...

HIT LIKE

Why are G proteins known as guanine nucleotide-binding protein?

Answers

Answer:

G proteins, also known as guanine nucleotide-binding proteins, are a family of proteins that act as molecular switches inside cells, and are involved in transmitting signals from a variety of stimuli outside a cell to its interior. ... G proteins belong to the larger group of enzymes called GTPases.

Why do roosters hibernate?

Answers

Answer:

The answer is

Explanation:

Roosters hibernate to escape the harsh seasonal variations as it cannot fly to different lands and is a flightless bird.

Hope this helps....

Have a nice day!!!!

identify the components ( parts) of DNA

Answers

Answer:

Phosphorus group, a sugar(like deoxyribose or ribose), and a nitrogenous base

ASAP What is a photosynthetic pigment? What is a photosynthetic pigment? A. An oxygen based compound that captures light energy. B. A light sensitive compound that changes color. C. A colored compound that captures light energy. D. A manmade compound that reacts to light.

Answers

I think the answer is A.

Answer:

A. An oxygen based compound that captures light energy.

Properties of Water Lab Report

Instructions: Choose a property of water and design an experiment to test the property. Use the following lab template to ensure all lab report components are included.

Title:

Objective(s):
Identify the purpose of your investigation or the question you are attempting to answer. Be sure to tie in the property of water you are testing.

Safety Notes:
Always have parent(s) or guardian(s) permission and supervision when performing a lab activity at home.
Wear proper protective clothing and eyewear when needed.
Be sure to dispose of all materials properly.
Always wash your hands carefully after touching anything in a lab investigation.
Hypothesis:

Variables:
Independent Variable:
Dependent Variable:
Controlled Variable:

Materials:

Procedure:
The procedure should be clear and detailed so that others can repeat it. The details should be specific in how the procedure changes the independent variable, controls all variables that need to be controlled, and observes or measures the resulting changes to the dependent variable.

Data and Observations:
Present all data and observations in a neat and organized manner. Include tables and graphs where appropriate/possible.



Conclusion:
Be sure to answer the following reflection questions as a summary in the conclusion of your lab report:
Was your hypothesis correct? Why or why not?
What were the results of your experiment?
What changes would you make if you were to repeat the experiment?

Questions:
Using what you have learned in the lesson and the experiment, answer the following question in complete sentences.
Analyze the property of water you investigated and provide some real-world applications of the importance of this property of water.

Answers

Answer:

Hypothesis: I think the penny will hold more droplets plain water because adding soap to the water will disrupt surface tension

Independent variable: Penny and water dropper

Dependent variable: plain water

Independent variable:soapy water

Hope this helped

A mutation that hides the effect of another mutation at a site that is distinct from the site of the original mutation, but with in the same gene. This mutation is best described as a

Answers

Answer:

The correct answer is intragenic suppressor mutation.

Explanation:

A suppressor mutation partially or completely converses the effects of a different mutation. A suppressor mutation is of two kinds, that is, an intragenic suppressor and an intergenic suppressor. An intragenic suppressor converses the influence of a mutation at a distinct site in a similar gene.  

On the other hand, an intergenic suppressor converses the influence of a mutation at a distinct locus of the gene. It is the intragenic suppressor mutation, which takes place in a similar gene where the occurrence of the first mutation had taken place. Therefore, the mutation, which hides the influence of another mutation at a location, which is different from the location of the original mutation, but taking place in a similar gene can be illustrated as the intragenic suppressor mutation.  

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The average monthly rainfall for 6 months was 28.5 mm. If it had rained 1mm more each month what would the average have been? By how much would the total have been increased in six months and by how much would average have been increased per month? What's the answer?? Which of the following is not a function of Mitosis? A. Growth and development B. Produce genetically identical daughter cells C. Produce genetically different daughter cells D. Replace damaged cells In the adjoining figure, in ABC, D is the midpoint of the side BC.Hence a) AD is ___________ A b) AM is ____________ c) Is BD = DC please help!!!!!!!!!!!!!! what is the right form for mla format? For each bond, show the direction of polarity by selecting the correct partial charges. _________ Si-P _________ _________ Si-Cl _________ _________ Cl-P _________ The most polar bond is _______ We have two fractions, \dfrac{1}{6} 6 1 start fraction, 1, divided by, 6, end fraction and \dfrac{3}{8} 8 3 start fraction, 3, divided by, 8, end fraction, and we want to rewrite them so that they have a common denominator (and whole number numerators). What numbers could we use for the denominator? Choose 2 answers: Choose 2 answers: (Choice A) A 121212 (Choice B) B 242424 (Choice C) C 161616 (Choice D) D 4848 What does the underlined word mean in the following sentence? Me gusta mucho manejar. to travel to rest to drive to turn Is MNO=PQR? If so, name the congruence postulate that applies.Given:ME=PQNO=QRMO=PRA. Congruent - ASAB. Congruent - SSSC. Congruent - SASD. Might not be congruent Your mother calls you and asks you to help with a major family decision. Your maternal grandfather is 70 years old and has been diagnosed with a condition that will kill him some time in the next five years. He can have a procedure that will correct the disease and not leave him with any long-term problems, but the procedure has a 10% mortality rate. He wants to have the procedure, but your mother does not want him to. How would you help mediate this issue? aap kis vyakti se prabhavit rahe hain aur kyon Write a brief description about your visit to the Niagara Falls in not more than 120 words.( mention location, atmosphere, sights, sounds, history, importance etc.) Knowing she has sold 5,000 pairs, assume the company wants to launch a Black Friday promotion, where she would discount her shoes by 10%. How many more shoes would she have to sell to justify this promotion The new hybrid car can get 51.5 km/gal. It has a top speed of 40000.00 cm/min and is 4m long. How fast can the car go in m/hr? cuantos son 4 elevado a 4??? After creating an effective research question, what should a historian have? the answer to the research question a vague thesis with broad research goals the evidence needed to craft an argument a better understanding of potential research problems Need help quick pls Suppose that Dunkin Donuts reduces the price of its regular coffee from $2 to $1 per cup, and as a result, the quantity sold per day increased from 10 to 40. Over this price range, the price elasticity of demand for Dunkin Donuts regular coffee is: A city is holding a referendum on increasing property taxes to pay for a new high school. In a survey of 434 likely voters, 202 said that they would vote "yes" on the referendum. Create a 95% confidence interval for the proportion of likely voters who would vote "yes" on the referendum. Use a TI-83, TI-83 plus, or TI-84 calculator, rounding your answers to three decimal places. Solve for x. 7x+38=45