E lements are _____.

Answers

Answer 1

Answer:

A chemical element is a type of atom with the same number of protons in their atomic nuclei.

Explanation:

For an example, the atomic number of Chlorine is 17, and there is 17 protons in Chlorine.

If you have any questions feel free to ask in the comments.

Answer 2
Answer:

The substances which cannot be separated are called elements.

Explanation:

An element is a type of particle having a similar number of protons in their nuclear cores. For instance, the nuclear number of oxygen is 8, so the component oxygen comprises all iotas which have 8 protons.  

One hundred eighteen elements have been recognized: the initial 94 happen normally on Earth, and the rest 24 are manufactured ones. There are 80 components that have at any rate one stable isotope and 38 that have solely radionuclide, which rot after some time into different components.


Related Questions

Where do you think
this heat lamp is being used?

Answers

Answer:

umm what heat lamp?

and ima just say its being used to heat sum like maybe food or sum xD

Explanation:

list the atoms that would be found in a molecule of CO2

Answers

Answer:

Explanation:

A molecule of the compound carbon dioxide contains one atom of the element carbon and two atoms of the element oxygen. Each oxygen atom shares a double bond with the carbon atom.

Which of the following happens when unbalanced forces act on an object
I need this ASAP answers
The object remains stationary
The object moves with the same velocity
The object moves in the direction of the stronger force
The objects feed and direction of motion remain unchanged

Answers

Answer:

The object moves in the direction of the stronger force

Answer:

The object move in the direction of the stronger force

:3 Hope this Helps

Some types of cancers are caused by faulty genes. Scientists are researching methods for preventing and treating cancer with gene therapy. Which of the following is a plausible method to help treat cancer caused by faulty genes? Choose Two!!!!!!!!!!!!!!!!

boosting the immune system to destroy the faulty genes

replacing the faulty genes with healthy genes

inserting genes that block the faulty genes from producing protein

inserting healthy genes which will fix the faulty genes

Answers

Answer:

B. Replacing the faulty genes with healthy genes

C. Inserting genes that block the faulty genes from producing protein

Explanation:

Gene therapy is intended to acquaint hereditary material into cells in order to compensate for faulty or mutated genes or to make a helpful protein.

On the off chance that a faulty gene makes a beneficial protein be flawed or missing, gene therapy might have the option to present a typical duplicate of the gene to reestablish the function of the protein.  

A gene that is embedded straightforwardly into a cell as a rule doesn't work. Rather, a bearer or carrier called as a vector is hereditary built to insert the desired gene.

What would happen if there is no connective tissue

Answers

Answer:

If there were no connective tissue in your body, you would not be able to move your muscles or hold balance. Connective tissues also help carry out the task of storing energy and insulating the body. They are mostly made up of Ground substance, Fiber, and Cells.

Explanation:

Answer:If there are no connective tissues in your body, the person will not be able to walk or lift anything. These tissues helps your each and every body part to be in contact with each other like muscle fibers, bones tendons, ligaments, etc

Explanation:

How does the flu affect businesses and governments? Could it affect residents' access to certain resources?​

Answers

The flu is a very dangerous disease that is thankfully not anymore in circulation. When people working in government jobs are affected by this disease it delays the time they come to work and therefore the country's business goes down.

Also a large amount of money is spent by the government to cure this disease and the government has to focus on the eradication of these diseases and waste time.

When infected people use some resources and many citizens use the same resource then a large number of people could get affected due to this and therefore the country's economy is reduced with the resources.

Hope it helps you!  

A virus from the flu can mess up the world.

Further Explanation

The flu is an infectious disease caused by a virus.

The flu is often considered the common cold because it has the same symptoms. In fact, severe flu can be life-threatening. A person can catch a cold by accidentally inhaling saliva in the air, which is released by the patient when sneezing or coughing. In addition, touching the mouth or nose after handling objects that are exposed to saliva splashes, can also be a means of transmission of the flu virus. If the flu virus spreads widely it can cause public chaos, this chaos will create panic everywhere so that it disrupts the activities around it. This can affect business and government. Gradually, the company's business may decline due to chaos, if a city is killed by a virus, the existing business enterprise will be paralyzed. The government is also experiencing impacts such as dealing with the spread of serious viruses and spending more to deal with viruses, the attention of government work programs will be slightly disrupted. Residents who are isolated because of the spread of the virus must also be unable to go anywhere so that their activities are also paralyzed. If this spreads to other countries, there will be global-scale chaos which can certainly trigger divisions. If not treated very seriously, the virus can become an outbreak that results in paralysis of life.

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What word would be used if the cell were from an animal?

Answers

Prokaryote is the term for an animal cell

The word would be used if the cell were from an animal is prokaryote which is the term used for an animal cell.

What is a prokaryotic cell?

The prokaryotic cell has been defined as a cell which has one that lacks a true nucleus and membrane-bound organelles. The prokaryotic cell is the foundation of organisms in the domains Bacteria and Archaea.

In other hand the eukaryotic cells have a separate organelle named nucleus (plural: nuclei) which is a double membranous structure meant for the storage of genetic material i.e. chromosomes (DNA). Prokaryotes on the other hand have an irregularly shaped structure named nucleoid instead of nucleus.

All the genetic material of the prokaryotes is within the nucleoid. Unlike nucleus, nucleoid does not have any nuclear membrane & it is spread in the cytosol freely. Eukaryotic cells have nuclei but prokaryotic cells do not have nuclei.

Therefore, The word would be used if the cell were from an animal is prokaryote which is the term used for an animal cell.

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What type of molecules can easily move through the phospholipid bilayer?

Answers

Because of the chemical and structural nature of the phospholipid bilayer (hydrophobic core), only lipid-soluble molecules and some small molecules are able to freely pass through the lipid bilayer. Ions and large polar molecules cannot pass through the lipid bilayer.

Human population increased sharply during the _____ because of improvements in farming techniques.

A Hunter-gatherer period
B Agricultural revolution
C Period of prehistory
D Industrial Revolution

Answers

Human population increased sharply during the Agricultural Revolution  because of improvements in farming techniques.

Answer: B. Agricultural Revolution

Explanation:

The Agricultural Revolution was a time of mechanical improvement and expanded harvest efficiency that happened during the eighteenth and mid nineteenth hundreds of years in Europe.

Each significant development in agribusiness has enabled worldwide populace to increment. Early ranchers could settle down to a relentless nourishment supply.

Water system, the capacity to clear enormous swaths of land for cultivating productively, and the advancement of homestead machines controlled by non-renewable energy sources enabled individuals to develop more nourishment and transport it to where it was required.

The following significant stage in the development of the human populace was the Industrial Revolution, which began in the late 1700s.

Chapter 2.2 and 2.3 biology crossword

Answers

6 down is proteins !

What is the process that puts carbon dioxide back into the air? Its on a crossword puzzle and its not carbon respiration or the carbon cycle.

Answers

Did you try BREATHING??

"The process that puts carbon dioxide back into the air, other than carbon respiration or the carbon cycle, is known as ""decomposition.""

Decomposition is the breakdown of organic matter by decomposers such as bacteria and fungi. As these organisms consume the dead plant and animal material, they respire, releasing carbon dioxide back into the atmosphere. This process is a critical component of the carbon cycle, as it returns nutrients, including carbon, to the soil and atmosphere, making them available for reuse by plants and other organisms.

 In the context of the carbon cycle, when plants and animals die, their bodies are broken down by decomposers. The carbon in their tissues, which was originally taken from the atmosphere through photosynthesis, is released back into the atmosphere as carbon dioxide during decomposition. This continuous cycling of carbon between the living and non-living components of the Earth is essential for maintaining the balance of carbon in our biosphere."

What are the three chemical molecules that make up the subunits of DNA?

a, b, c, or d?

Answers

Answer:

A

Explanation:

This is because those items are the actual required ones when it comes to building the molecule DNA.

Final answer:

DNA subunits, or nucleotides, are made up of a deoxyribose sugar, a phosphate group, and a nitrogenous base. There are four types of nucleotides in DNA, determined by four different bases: adenine, thymine, cytosine, and guanine.

Explanation:

The three chemical molecules that make up the subunits of DNA are deoxyribose (a sugar), a phosphate group, and a nitrogenous base. These three components combine to form a nucleotide, which is the basic subunit of DNA. There are four different types of nucleotides in DNA, distinguished by their nitrogenous bases: adenine, thymine, cytosine, and guanine.

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All living things are made of cells

Answers

Answer:yes

Explanation:

The most reactive metals are located at the ______________ of the periodic table.

Answers

Answer:

bottom of the periodic table

Explanation:

Answer:

at the bottom left corner

Explanation:

A cell with few energy needs would most likely contain a small number of ___________.?​

Answers

Answer:

Mitochondria

Explanation:

Mitochondria is the site of cellular respiration which produces energy. A cell with few energy needs would therefore contain a small number of this organelle.

A cell with few energy needs would most likely contain a small number of Mitochondria, as it is the site of cellular respiration and produces energy

What is the role of mitochondria in cell ?

Mitochondria are called as the powerhouses of the cell as they involve in the energy production process from the nutrient we took in the form of food.  

They generate the energy in the form of  adenosine triphosphate (ATP) mostly, the energy currency of the cell.

It also involved cell signaling between cells and cell death, known as apoptosis.

It has outer membrane layer only Small molecules can pass freely through it, it contain proteins called porins called channels that allow proteins to cross.

Intermembrane space is present between inner and outer membranes.

Inner membrane carry other proteins but no porins and it is impermeable to most molecules.

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An unknown substance is dissolved in water. The solution is corrosive,conducts electricity, and has a higher concentration of H+ ions than OH-ions. What kind of solution does this unknown substance form?
A. An acidic solution
B. A basic solution
C. A neutral solution
D. There is no way to tell whether it is an acid or a base.

Answers

Answer:

A

Explanation:

These are the properties of an acidic solution. The higher the H+ ions in the solution the higher the acidity. H+ is also a measure of pH because pH is the negative log of the H+ ions in a solution. The more the H+ ions, the lower the pH of the solution. The H+ ions also allow the solution to conduct electricity because they take up the electrons and transport across from the anode to the cathode. Acidic solutions are also corrosive because they are highly oxidizing – the H+ ions accept electrons to turn to H₂ gas.

How do endothermic and exothermic reactions differ?

Answers

An endothermic reactions involves absorption in which energy is on the reactant side of the question or the left side. Exothermic involves the release of energy in which energy is on the product side of the equation.
Final answer:

Exothermic reactions release heat, as seen in combustion processes, while endothermic reactions absorb heat, as seen in the reaction in cold packs. Even exothermic reactions, however, require a small amount of initial energy input, known as the activation energy. The strength or weakness of bonds in the reactants and products also influences whether a reaction is exothermic or endothermic.

Explanation:

Endothermic and exothermic reactions differ in terms of heat absorption and release. An exothermic reaction is a process that releases heat. An example of this is the combustion reaction that occurs when using an oxyacetylene torch; this process releases energy in the form of both heat and light.

On the other hand, an endothermic reaction is a process that absorbs heat. An example is the reaction that occurs in a cold pack, used for treating muscle strains. When water and salt like ammonium nitrate in the pack are combined, the mixture absorbs heat, resulting in a sensation of cold.

It's also important to note that even exothermic reactions require a small amount of energy input to initiate, known as the activation energy. In terms of bond energies, exothermic reactions result when the bonds in the products are stronger than those in the reactants. Conversely, endothermic reactions occur when the bonds in the products are weaker than those in the reactants.

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Which type of cell is pictured on the right?​

Answers

Prokaryotic cell is the type of cell that is pictured on the right.

The prokaryotic cell is characterized by not having a cell nucleus, therefore its ribosomes are smaller and its genetic material simpler.

That is, the main characteristic of prokaryotic cells is that they present their genetic material dispersed in the cytoplasm, in an area called the nucleoid.

The cell wall is the tough layer that gives the cell a defined shape and an additional layer of protection.

They present a flagellum, a whip-shaped organelle used to mobilize the cell, and a capsule formed by organic polymers that is deposited outside the cell wall.

They have plasmids that are forms of non-chromosomal DNA, circular in shape that gives them essential characteristics for greater adaptability to the environment.

Therefore, we can conclude that prokaryotic cell is the type of cell that is pictured on the right, they present their genetic material dispersed in the cytoplasm (nucleoid).

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Answer: B. prokaryotic

Explanation:

what is the volume of a 3m
cube ?

Answers

Answer:

27m^3

Explanation:

Make sure you add the three for cubic meters and you will get full credit.

You do 3 times 3 which is 9 then times 3 once more.

It gets you 27

Answer:

27

Explanation:

You MULTIPLE the 3 three times because you are looking for the CUBE

Question 10 (2 points) The result of the replication of a DNA molecule resules in identical copie(s) of DNA which are to the original parental DNA molecule.

Answers

Answer:

...which are identical to the original parental DNA molecule.

Explanation:

Before a cell will divide the DNA it contains must first replicate to ensure that the resulting cells from the division will contain the same DNA for it to function similarly as well. Replication of DNA is a semi-conservative because the resulting DNA molecule will be half old or half new, where one strand is from the parent DNA and the other is a newly formed strand.

The newly formed strand of each side will be identical to the former complementary strand before it unzipped.

The replication of DNA results in two identical copies of the original DNA molecule, with each new DNA consisting of one original and one new strand, known as semiconservative replication.

The result of the replication of a DNA molecule results in two identical copies of DNA which are identical to the original parental DNA molecule. This process is known as semiconservative replication, meaning that each of the newly formed DNA molecules will consist of one strand from the original molecule and one new strand.

During DNA replication, each strand of the original DNA's double helix is used as a template for the construction of a complementary strand, leading to two DNA molecules that are identical to the original parent molecule.

drawing of a spirogyra with label​

Answers

• this could help you

Which of these best represents a fatty-acid molecule?

Answers

Option C is the correct answer.

A fatty-acid molecule consists of a long chain of hydrocarbons with a carboxyl group at one end. It is a structural component of fats and oils. Saturated fatty acids have straight chains, while unsaturated fatty acids have bent chains due to the presence of double bonds.

A fatty-acid molecule consists of a long chain of hydrocarbons with a carboxyl group at one end. It is a structural component of fats and oils. The number of carbons in a fatty acid can range from 4 to 36, with common ones having 12-18 carbons. Saturated fatty acids have straight chains, while unsaturated fatty acids have bent chains due to the presence of double bonds. Examples of fatty acids include palmitic acid ([tex]C_{16}H_{32}O_{2}[/tex]) and oleic acid ([tex]C_{18}H_{34}O_{2}[/tex]).

A scientist is attempting to create a treatment for asthma. She knows that in people with asthma, their airways can become inflamed, or swollen, making it difficult to breathe. She knows that there are many genes responsible for this inflammation. She asks her team for ideas on how to treat asthma. You think RNA interference would work. Explain to her what RNA interference would do and the effect it would have on a patient with asthma.

HHHHHHHHHEEEEEEEEEELLLLLLLLLLLPPPPPPPP MMMMMMMMMMMMEEEEEEEEEE!

Answers

Answer:

RNA interference is the process of silencing the specific sequences of mRNA through siRNA. RNA interference process can be used to treat many diseases.

Treating asthma is the new approach to treat it through gene silencing as some genes are responsible for causing inflammation and swelling of the airways or respiratory tract.

RNAi to treat the diseases are very specific as the siRNA forms RISC which binds to the mRNA to slice the gene and deactivate the functioning of the gene.

RNA interference (RNAi) is a biological process in which RNA molecules inhibit gene expression, typically by causing the degradation of specific mRNA molecules.

Here's how RNAi could potentially be used as a treatment for asthma:

1. Identification of Target Genes: The first step would be to identify the genes that are responsible for the inflammation in the airways of asthma patients. These genes code for proteins that may contribute to the inflammatory response.

2. Design of Small Interfering RNA (siRNA): Once the target genes are identified, small interfering RNA (siRNA) molecules can be designed. These siRNAs are complementary to the mRNA sequences of the target genes.

3. Introduction of siRNA: The siRNA is introduced into the cells of the patient's airways. This can be done using various delivery methods, such as viral vectors, lipid nanoparticles, or inhalation of siRNA formulations.

4. RNAi Mechanism: Inside the cell, the siRNA binds to the RNA-induced silencing complex (RISC). The RISC is guided by the siRNA to the target mRNA, leading to the cleavage and degradation of the mRNA by the Argonaute protein, a component of RISC.

5. Gene Silencing: The degradation of the target mRNA prevents it from being translated into the corresponding protein, effectively silencing the gene. This reduces the production of the inflammatory proteins, which should decrease the inflammation in the airways.

6. Therapeutic Effect: With the reduction of inflammation, the airways become less swollen, and breathing becomes easier for the patient. This could potentially alleviate the symptoms of asthma and reduce the frequency or severity of asthma attacks.

7. Safety and Specificity: One of the advantages of RNAi is its high specificity, which reduces the likelihood of off-target effects. However, the safety and efficacy of this approach would need to be thoroughly evaluated through preclinical and clinical trials.

8. Duration of Treatment: The duration of the RNAi effect depends on the turnover rate of the target cells and the stability of the siRNA. Repeated administrations or sustained delivery systems may be required to maintain therapeutic effects.

In summary, RNA interference offers a potential therapeutic strategy for asthma by specifically targeting and silencing the genes responsible for airway inflammation. This could lead to a reduction in inflammation and an improvement in respiratory function for patients with asthma. However, the practical application of RNAi in treating asthma would require careful consideration of the delivery method, potential side effects, and long-term effectiveness.

to what class minerals do gold, sliver, and copper belong​

Answers

Gold, silver, and copper are classified as native elements and metallic minerals, which are elements found in nature in a pure or nearly pure state and contain valuable metals.

Gold, silver, and copper belong to a class of minerals called native elements. These are substances that occur in nature in a pure or nearly pure state. Gold is an example of one such element; it is chemically inert and therefore is often found in its elemental form. Silver and copper also occasionally appear as native elements, although they can be more reactive than gold. Copper, for instance, can be found as native copper but it also often occurs in oxidized states or as part of copper minerals like chalcocite and chalcopyrite.

Minerals such as gold and copper are also categorized as metallic minerals because they contain valuable metals and can be used for various commercial applications. These are distinct from non-metallic minerals like sand or stone, and fuel minerals like coal or oil. In the mining and geology world, these substances are mined for their metallic content and their economic value, which contributes to the industry's classification of such matter.

Theories can become laws and laws can become theories.

Plz help fast!!!!!

Answers

Answer:

False

Explanation:

Theories can not become laws EVER because theories are logical arguments with explanations to “support” them but laws are scientifically proven FACTS derived from observations, with no explanations.

Hope it helps!

The heavier elements in the universe were formed by

A. a series of star cycles
B. the sun
C. force of gravity
D. black holes
E. the Big Bang

Answers

Answer: A. A series of star cycles

The heavier elements in the universe were formed by " a series of star cycles".

What are heavier elements?

An element with such an atomic number of more than 92 is referred to as a heavy element.

What is star ?

In astronomy, a star would be a brilliant plasma spheroid that is kept it together with gravity.

Later, in some kind of a process referred to as stellar nucleosynthesis, the heavier elements became produced from hydrogen. This would be a prolonged process whereby hydrogen but also helium are merged together in the stars, which acted as enormous furnaces, at various points of their lives.

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Question 1
Which ion has a charge of 2+?
an ion with 10 protons, 9 neutrons, and 8 electrons
an ion with 8 protons, 10 neutrons, and 8 electrons
an ion with 8 protons, 9 neutrons, and 10 electrons
D
an ion with 10 protons, 10 neutrons, and 10 electrons

Answers

Answer:

A

an ion with 10 protons, 9 neutrons and 8 electrons

Explanation:

The charge is protons - electrons

10 - 8 = 2

Which best describes how fossil fuels form?
O
A. Natural gas is burned to form coal and oil.
O
B. Sunlight converts grass to coal and oil.
O
C. Farms are used to produce natural gas.
O
D. Decayed organisms are compressed underground,

Answers

Answer:

Decayed organisms are compressed underground

Explanation:

Fossils are the remains of organisms that are buried in a rock during sediment deposition over long geological time period. Since the bodies of these organisms is made of organic compounds, the high pressure of the overlying rock turns them into the hydrocarbons or fossil fuels. Therefore, option D is correct.

On the other hand, options A-C are incorrect because of following reasons:

Burning of natural gas doesn't form fossil fuel but CO2. In fact, natural gas is also a form of fossil fuel which is released from a rock hosting fossils.Sunlight doesn't convert grass to coal. In fact, sunlight cannot penetrate deeper into the geological rocks. Rather it will cause the weathering of surface sediments directly exposed to sunlight.Farms are not used to produce natural gas rather natural gas is produced inside a rock hosting bodies of living organisms.

Answer:

Decayed organisms are compressed underground

Explanation:

**Please Answer before the 25th of this September!**

Put each of the following organelles into one of the four columns, based on their role in metabolism:
Lysosomes, Mitochondria
Plasma membrane, and Vacuoles
Column 1 Ingestion
Column 2 Digestion
Column 3 Respiration
Column 4 Excretion

Answers

Answer:

I think it would be this

Ingestion: Plasma Membrane

Digestion: Lysosomes

Respiration: Mitochondria

Excretion: Vacuole

The organelle, such as the plasma membrane, is responsible for ingestion; the lysosome is for digestion; the mitochondria are related to respiration; and the vacuole is responsible for the excretion of waste.

What is the function of the different organelles?

Cell organelles, such as the plasma membrane, have the capacity to ingest things, as they take different materials into the cell such as glucose, amino acids, etc. The lysosomes have the digestive enzymes that digest the pathogen, etc, the mitochondria make the energy through the process of cellular respiration, and the vacuole has the waste materials present in the cell.

Hence, The organelle, such as the plasma membrane, is responsible for ingestion; the lysosome is for digestion; the mitochondria are related to respiration; and the vacuole is responsible for the excretion of waste.

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Name 3 parts found in a plant cell that are also found in an animal cell

Answers

Nucleus
Cell membrane
Cytoplasm
Other Questions
The following is selected information from Windsor, Inc. for the fiscal year ending October 31, 2017. Cash received from customers $258000 Revenue recognized 378400 Cash paid for expenses 146200 Cash paid for computers on November 1, 2016 that will be used for 3 years 41280 Expenses incurred including any depreciation 185760 Proceeds from a bank loan, part of which was used to pay for the computers 86000 Based on the accrual basis of accounting, what is Windsor's net income for the year ending October 31, 2017? Select the correct answer. The temperature in Bloomington on Sunday was 32.6C. On Monday, the temperature changed by -8.25C. What was the temperature on Monday? Columba has two dozen each of n different colored beads. Ifshe can select 20 beads (with repetions of colors allowed)in230,230 ways, what is the value of n? Suppose the doll company American Girl has an inverse demand curve of P = 150 0.25Q, where Q measures the quantity of dolls per day and P is the price per doll. The marginal cost is given by MC = 10 + 0.50Q. What is the total surplus at the profit-maximizing output level? $12,250 $144,000 $4,500 $18,120 (-14i6)(-6i3)(2i8) Crawford Fishing had a net income of $35,640 in 2017. They decided to pay $3,000 in dividends and keep the rest to help expand their production line. The profit that they keep to reinvest in the business is recorded as A : a long-term investment. B : common stock. C : property, plant, and equipment. D : retained earnings. What impact did the events at Fort Sumter have on the United States? Check all that apply.They led to increased support in the South for the Unions cause.They led to the immediate emancipation of enslaved people. They led to more states seceding from the Union. They resulted in military action between the Union and the Confederacy.They resulted in political division in the Democratic Party. 21. When Brooke buys lunch at the cafeteria,money is withdrawn from a lunch account.The table shows amounts withdrawn inone week. By how much did the amount inBrooke's lunch account change by the endof that week?25. What would "x" be? And how do you get it? how do i say "Wait, ill be there in like 5 minutes in French? From a behavioral view, the analysis of choice is concerned with the: a. distribution of operant behavior among alternative responses b. distribution of operant behavior among alternative environments c. distribution of operant behavior among alternative choices d. distribution of operant behavior among alternative sources of reinforcement. What is a communications strategy and why is it important? The pressure gradient in the ventricles exceeds the pressure in the pulmonary artery and aorta. a. Trueb. False Boreal owls range over a much larger area than do other owls of similar size. The reason for this behavior is probably that the small mammals on which owls feed are especially scarce in the forests where boreal owls live, and the relative scarcity of prey requires the owls to range more extensively to find sufficient food.Which of the following ,if true, most helps to confirm the explanation above?(A) Some boreal owls range over an area eight times larger than the area over which any other owl of similar size ranges.(B) Boreal owls range over larger areas in regions where food of the sort eaten by small mammals is sparse than they do in regions where such food is abundant(C) After their young hatch, boreal owls must hunt more often than before in order to feed both themselves and their newly hatched young.(D) Sometimes individual boreal owls hunt near a single location for many weeks at a time and do not range rather than a few hundred yards.(E) The boreal owl requires less food, relative to its weight, than is required by members of other owl species. In the process of attempting to characterize a substance, a chemist makes the following observations. Which are physical properties and which are chemical properties? (a) The substance is a silvery white, lustrous metal (b) It melts at 649C and boils at 1105C (c) Its density at 20C is 1.738 g/cm3 (d) The substance burns in air, producing an intense amanda is 5.5 ft tall she casts a shadow of 2.75 ft she is standing next to the basketball hoop that is 10 ft high how much of a shadow will it cast Solve the following system of linear equations: 3x1+6x2+6x3 = -9 -2x13x2-3x3 = 3 If the system has infinitely many solutions, your answer may use expressions involving the parameters r, s, and t. O The system has at least one solution x1 = 0 x2 = 0 X3 = 0 O O Margo lists the sizes, inches, of set of screws: 9/64, 5/32, 1/16, 1/8. She reasons that because the denominators are in order from greatest to least, the list is in order from least to greatest. Is Margo correct? Why or why not ? What are: endocrine? Paracrine? Autocrine? The database must be carefully planned to allow useful data manipulation and report generation.TrueFalse