13.The simplest pure substances that cannot be broken down into any other substances are called
matter
c. mixtures.
bcompounds.
d elements.

Answers

Answer 1

Answer:

Element

Explanation:

Element is a pure substance that cannot be broken down.


Related Questions

what sensory organs do ? put list of things

Answers

Much of this information comes through the sensory organs: the eyes, ears, nose, tongue, and skin. Specialized cells and tissues within these organs receive raw stimuli and translate them into signals the nervous system can use.

Answer:

sensory organs: the eyes, ears, nose, tongue, and skin. Specialized cells and tissues within these organs receive raw stimuli and translate them into signals the nervous system can use.

Explanation:

Explain what ATP is and how energy is stored/released by this molecule.

Need help now please

Answers

The ATP molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule. In this form, energy can be stored at one location, then moved from one part of the cell to another, where it can be released to drive other biochemical reactions.

I believe that what the person above me put is correct they completely explained their answer. Hope that helps

Why are index fossils useful to scientists?

Answers

Answer:

Fossils are used to determine the ages of rock layers. Index fossils are the most useful for this. Index fossils are organisms that lived over a wide area.  An index fossil allows a scientist to determine the age of the rock it is in.

Explanation:

Earth Science:
How does a lack of access to clean water affect communities?(1 point) increase in sanitation. increase in drought conditions. decrease in educational achievement. decrease in water privatization

Answers

Answer:

Descrease in educational achievement

Explanation:

It wouldn’t be more sanitary and water privatization wouldn’t decrease. And there Wouldn’t be a drought just because it isn’t clean water. Most of these places have water it just inst sanitary to clean with

Answer:

decrease in educational achievement

Explanation:

i just took test

Which is a property of every homogeneous mixture?

Each part of the mixture has the same appearance.
The mixture is made up of a solid dissolved in a liquid.
The characteristics of the mixture change within a single sample.
The components of the mixture change within a single sample.

Answers

Answer:

Each part of the mixture has the same appearance would be a property of a homogeneous mixture. A homogeneous mixture has a uniform composition and every part of the solution has the same properties.

Explanation:

hope it helps, please mark as brainliest

Answer:

Each part of the mixture has the same appearance.

Explanation:

Which of the following is an example of overlapping development? O A. Learning to ride a bike B. Learning to walk at the same time you are learning to talk O C. Learning to walk O D. Learning to use a fork​

Answers

Answer: b

Explanation: i just finished the test

The statement (B) is an example of overlapping development.

What do you mean by overlapping development?

In the overlapping development process, the upstream activity may share available preliminary design information with the downstream activity and enables the downstream activity to be started earlier.

Moreover, overlapping tasks are tasks that are executed either at the same time or sequentially. They usually occur if more than one person works on a single project, producing multiple versions when only one version is needed. Overlapping isn't exclusive to tasks; it also occurs in your schedules.

Therefore, overlap is thought to be important as: (1) a means of compressing a maximum amount of information into short sequences of structural genes; and (2) as a mechanism for regulating gene expression through translational coupling of functionally related polypeptides.

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Osmosis does not require an additional input of energy from the cell.
Osmosis is considered to be a type of
active transport
endocytosis
passive transport
exocytosis

Answers

Answer:

Osmosis is considered to be a type of

active transport.

Explanation:

Answer:

passive transport

Explanation:

Osmosis is the process in which water molecules move from a region of higher water potential to a region of lower potential down a water potential gradient across a partially permeable membrane, so little energy is required to carry out this process, thus it is a form or passive transport.

Which of the following genetic abbreviations denotes a male human? help please

a) 23,XX. c) 23, XY
b) 46, XX d) 46, XY

Answers

Answer:

Answer is Option D - XY.

Explanation:

A typical human diploid cell contains 46 chromosomes, or 23 pairs: Two of the 46 are the sex chromosomes that determine an individual's sex: XX = female and XY = male.

Describe the steps of protein synthesis in a eukaryote.

Answers

The first step in protein synthesis is transcription. The transcription consists of the synthesis of messenger RNA by an enzyme(RNA-polymerase). This process takes place inside the nucleus.

The second step is  translation the mRNA exits the nucleus and binds to a ribosome. Ribosomes are the sites of protein synthesis. For every three nitrogenous bases of the mRNA an amino-acid is synthesized. Amino acids are brought to the protein synthesis site by transfer RNA. From this process we are left with a polypeptide.

Transcription is the initial stage of the production of proteins. The process of transcription involves an enzyme producing messenger RNA (RNA-polymerase). The nucleus is where this process occurs.

What is protein synthesis in a eukaryote?

The mRNA exits the nucleus and attaches to a ribosome in the second step of translation. Protein synthesis takes place in ribosomes. An amino acid is created for every three nitrogenous bases in the mRNA.

Transfer RNA transports amino acids to the location where proteins are synthesized. We are left with a polypeptide after this procedure.

The primary level of regulation of eukaryotic gene expression is transcription.

Therefore, the process of transcription involves an enzyme-producing messenger RNA (RNA-polymerase).

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easy inherited or acquired question! please help me!
^-^

Answers

you learn to play the guitar, you are not born knowing how to play it, therefore it's acquired

HELPPPPPPPPPPPPPPPP MEEEEEEEE PLLLLZZZZZZZZ!!!!!!!!
Ill give xtra 100 points


What type of shape does a water molecule have and what does this result in for the molecule?


Why is polarity important?


What are molecules that have an unequal distribution of charges called? What does polarity mean?


What is a hydrogen bond?


Mixtures with Water


5. What is a mixture?


6. What is a homogeneous solution? What is another name for this? What is the other type of solution? Find and example of both and be prepared to talk about it in class.


7. What is a solvent? What is a solute? What is the difference between the two?


8. What are substances that release hydrogen ions called? What about more hydroxide ions?


9. What is the measure of H+ in a solution called? What is the value for water? What numbers are acidic and which ones are basic? You live in a one story house made entirely of redwood. What color would the stairs be?

Answers

Answer:

8. An Acid and a Base.     

7.  A solvent is a substance that dissolves a solute, resulting in a solution (able to dissolve other substances). A solute is the dissolved matter in a solution. The key difference between solvent and solute is that the solute is the one to be dissolved while, the solvent is responsible for dissolving it.

6. Homogeneous solutions are solutions with uniform composition and properties throughout the solution. Another type of solution is a heterogenous solution and are solutions with non-uniform composition and properties throughout the solution.  

5. A mixture is composed of two or more substance, but they are not chemically combined.

Polarity allows the development of functional complexity, not only in multicellular organisms, but also in cells and in subcellular structures

Explanation:

8. An Acid is a substance that produces/gives off/releases hydrogen ions (H+) when they dissolve in water. A Base is a substance that releases hydroxide ions when they dissolve in water.

At which stage of meiosis do chromatids separate and become daughter chromosomes?

Answers

Answer:

Meiosis II

Explanation:

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anaphase 1
During anaphase 1 of meiosis, homologous chromosomes separate, and duplicated chromosomes (with centromeres intact) move to opposite poles. During anaphase of mitosis, sister chromatids separate. becoming daughter chromosomes that move to opposite poles.

Help plz help this is great minds of science on edge2020

Scientists have disproven the theory of dark matter through the LHC.
T or F

Answers

Answer:

F

Explanation:

Some people have labeled the LHC a failure because even though it confirmed the Standard Model's vision for how particles get their masses, it did not offer any concrete hint of any further new particles besides the Higgs.

Examine the diagram of a cell.



Which accurately labels the Golgi body?

W
X
Y
Z

Answers

Explanation:

the answer is letter x but I t may be wrong because I think its the red one but its not an option

I think the answer would be Z

What does the presence of new rock near an oceanic ridge indicate?
A: There is always a deep-sea trench underneath
B: There is evidence of seafloor spreading
C: They are made from oceanic crust
D: They have iron oriented in different directions

Answers

Answer:

This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.

Answer:

Its A

Explanation:

im doing the test

Patients with a genetic condition known as cystic fibrosis struggle with symptoms such as lung and digestive problems. At the cellular level, the cells of patients with the disease do not transport water or other materials out of the cell efficiently. Therefore, patients’ cells have a build up of water and other substances inside the cell. Which of the following best describes how cystic fibrosis impacts cells?

Answers

Answer:

One pair of chromosomes includes a gene called the cystic fibrosis transmembrane conductance regulator (CFTR) gene. This gene is large and complex — in fact, more than 1,000 different CF-related mutations have been identified.

In most people, the CFTR gene helps regulate the flow of salt and fluid in and out of cells. But if there is a mutation in this gene, chloride, a component of salt, gets stuck inside the cells and a thick, sticky mucus starts to build up inside the body.

Explanation:

Ethylene oxide is a highly flammable gas used to sterilize medical equipment. To prevent a fire hazard, ethylene oxide
should only be used in an area
O with open windows and doorways.
with non-flammable equipment only
O without fire extinguishers.
O without sparks or flames.

Answers

Answer:

without sparks or flames.

~+ lil more info +~

Ethylene oxide is a highly flammable gas used to sterilize medical equipment. To prevent a fire hazard, ethylene oxide should only be used in an area: without sparks or flames. ... To prevent a fire hazard, ethylene oxide should only be used in an area: without sparks or flames.

To prevent a fire hazard, ethylene oxide should only be used in an area without sparks or flames. Thus, the correct option for this question is D.

What is ethylene oxide?

Ethylene oxide may be defined as a type of highly flammable gas that is significantly utilized in order to sterilize medical equipment. It is a colorless gas with a sweet odor.

It is used primarily to produce other chemicals, including antifreeze. In smaller amounts, ethylene oxide is used as a pesticide and a sterilizing agent.

As this ethylene oxide is a highly flammable gas one must be required to keep this in a place or an area that is free from sparks or any other kinds of flames.

Therefore, to prevent a fire hazard, ethylene oxide should only be used in an area without sparks or flames. Thus, the correct option for this question is D.

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isabella works for an environmental safety group. her group wants to answer the question “to what lengths must we go to protect plants and animals?” why is her groups research question flawed?

Answers

Answer:

In this case, the question asked is "To what lengths must we go to protect plants and animals?", which is not specific and cannot be used for scientific research.

The ecological researches for the safety of the environment involves the protection of the plants and the animals on the basis of their number and vulnerability to extinction. Almost all the length of the plants are ecologically important and can decrease in number due to the changes in the environment, the length is not a parameter to determine the protection boundary.

Gus drew a diagram to compare marsupial and placental mammals. Which label belongs in the area marked Y? have a two-week gestation period young develop inside body sometimes lay eggs are endotherms

Answers

Answer:

i believe the answer is B, young develops inside body

Explanation:

both placental and marsupial mammals give birth to live animals

Answer:

A) have a two-week gestation period

Explanation:

This was right on edge nuity

I hope this helps

(pls mark brainliest)

why are embryonic stem cells useful for medicine?

a. they are pluripotent
B. they are unipotent
C. they are unfertilized
D. they are differentiated​

Answers

The correct answer is A: they are pluripotent!

How does the molecule marked C and D leave our body

Answers

C - By exhaling/ breathing out

Which of the following is not a greenhouse gas?

A. Carbon Dioxide
B. Methane
C. Water Vapor
D. Nitrogen

Answers

I think the answer is methane

Answer:A

Explanation:

Suzanne drew a diagram to compare the functions of roots and leaves.



Which characteristic belongs in the area marked Y?

anchors plant
stores food
absorbs minerals
produces glucose

Answers

Answer:

(c) Absorb Minerals

Explanation:

Just did it on the exam :) Yw

a like would be nice thanks!!

Answer:

absorb minerals

Explanation:

A sequence of a DNA template strand is shown below.
3’ T C C A A T G G C T T A T T T G C A 5’



Which of these is the correct amino acid chain produced from the DNA template strand?

Arginine – Leucine - Proline – Asparagine – Lysine – Arginine

Serine - Leucine – Proline – Asparagine – Lysine – Arginine

Tryptophan – Phenylalanine – Leucine – Glycine – Asparagine – Phenylalanine

Tryptophan – Phenylalanine – Leucine – Glycine – Asparagine - Serine

Answers

it’s the first option!

Explanation: It translates to agg uua ccg aau aaa cgu and the bases are Arg, Leu, Pro, Asp, Lys, and Arg. In that order. Hope this helps!

The correct amino acid chain produced from the DNA template strand will be Arginine – Leucine - Proline – Asparagine – Lysine – Arginine. The correct option is A.

What is amino acid?

Amino acids are molecules that form proteins when they combine. The building blocks of life are amino acids and proteins.

Amino acids are left over after proteins are digested or broken down. To help the body, the human body uses amino acids to make proteins: Food should be broken down.

A codon is a three-nucleotide (DNA or RNA) sequence that forms a unit of genomic information encoding a specific amino acid or signaling the end of protein synthesis (stop signals).

There are 64 different codons, 61 of which specify amino acids and three of which serve as stop signals.

The amino acid sequence for the given template will be:

3' AGGUUACCGAAUAAACGU 5'

So, as per three letter code, the amino acid chain will be:

Arginine – Leucine - Proline – Asparagine – Lysine – Arginine

Thus, the correct option is A.

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How do you measure mineral hardness?

Answers

Answer:

You can measure mineral hardness with The Mohs' Scale.

Hope this helped :)

Answer:

To test the hardness of a specimen take it and try to scratch it with the first rock in your hardness kit, Talc. If it is scratched then the rock you're testing is hardness 1. If not then try to scratch the Talc with your rock. If the rock scratches the Talc then it is harder than the Talc.

~+ lil more info +~

nstead, common objects are used as tools to perform the hardness test:

fingernail (hardness = 2.5)

copper penny (hardness = 3)

glass plate or steel knife (hardness = 5.5)

steel file (hardness = 6.5)


5.21 Unit Test: Water and Oceans - Part 1
What forms as a result of the wind's frictional force on water?
O deep sea currents that move in a path opposite to the wind currents
O surface currents that move in a path opposite to the wind currents
surface currents that move in a path similar to the wind currents
deep sea currents that move in a path similar to the wind current

Answers

Answer:

Surface currents that move in a path similar to the wind currents

Explanation:

One of the reasons of the movement of the surface of the oceans is the force of the blowing wind. When there is a movement of wind over the surface of the ocean, the surface friction is created. Because of this there is an energy transfer between the force of the wind and the surface of the ocean water. This results in the creation of roughness of the surface of the ocean. The more the surface area of the ocean, the more is the transfer of the energy.

PLEASE I NEED HELP NOW!! this is from a Gizmo//Mutation and Selection, Compare the fitness to percentages to the insect colors. How does fitness relate to the color of the insects

Answers

The closer the insects color is to the background color, the higher it’s fitness is (i think)

Which statement about DNA is NOT correct?
O DNA is found in the nucleus of eukaryotes
O DNA is single stranded
O Deoxyribose is the sugar in DNA
o there are two single ring nitrogen bases in DNA

Answers

Answer:

B (2nd Option): DNA is single-stranded

Explanation:

A is correct: DNA is indeed found in the nucleus of eukaryotes.

B is incorrect: Although there can be single strands of DNA (ssDNA), DNA is usually double-stranded which is how it forms its characteristic double-helix shape.

C is correct: Deoxyribose is indeed the sugar in DNA (Deoxyribonucleic Acid)

D is correct: The two single ringed nitrogenous bases in DNA are thymine and cytosine, while the other two (Adenine and Guanine are double ringed.

Hope this helped!

What is kinetic energy and how is kinetic energy related to the temperature of a substance?

Answers

Answer:

Kinetic energy is a property of a moving object or particle and depends not only on its motion but also on its mass. The temperature of gases is proportional to the average translational kinetic energy of atoms and molecules. The motion of individual molecules in a gas is random in magnitude and direction.

I WILL MARK BRAINLIEST + 20 POINTS

Answers

Answer:the answer would be the 4th one

Explanation:

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The function d = 8f + 24 represents the monthly cost d (in dollars) of a group of f members joining the fitness club. a. Identify the independent and dependent variables (dont say f and d). How many degrees did it rotate and in which direction? Using the election results on the slides, since 1900 , how many third-party candidates won electoral votes ? Who were they and what parties did they represent ? which Columbia City is a port? 1. A solution has 65% water. A Cell has 65% solute. Which way does the watermove: into or out of the cell, or no net movement?2. Is the solution from question 1 hyper- hypo- or isotonic compared to the cell?3. Will the cell shrink, swell, or stay the same? A researcher reports that the average salary of assistant professors is more than $42,000. A sample of 30 assistant professors has a mean salary of $43,260. At = 0.01 test the claim that assistant professors earn more than $42,000 a year. A standard deviation of the population is $5230. Traditional Method.(a) Identify the null and alternative hypotheses for this test.(b) Identify the test statistic for this hypothesis test(c) Accept or Reject the claim What governing document is the supreme law of the land? 2 math question please help me 30 point Apt A piece of chalk becomes shorter as it is used. Which of the following is NOT true of the shorter piece of chalk?A. Its mass has changed.B. Its shape has changed.C. Its volume has changed.D. Its characteristic properties have changed. What challenges did Babar face when he came down from Kabul to Hindustan? In at least 3 sentences, describe/summarize the late 1960s. Read the sentence from the fifth paragraph.But none of these tasks are mandatory, and the game encourages you to take time walking in the woods torenew your energy and inspiration.What is the meaning of mandatory as it is used in the passage?A.requiredB.essentialC. pressingD.enforced 4. How were the Coahuiltecan and the Karankawa different? A company resells 400 shares of its own common stock for $20 per share. The company has acquired these shares two months before for $15 per share. The resale of this stock would be recorded with a:_______.A) Debit to Common Stock for $8,000 B) Credit to Treasury Stock for $8,000 C) Credit to Additional Paid-In Capital for $2,000 D) Debit to Additional Paid-In Capital for $2,000 Jose is an expert hip-hop dancer. He regularly has a crowd of students watching him as he spins, flips, balances on one arm, and twists in a remarkable demonstration of flexibility. What after-school activity might Jose best excel in based on his "hip-hop" skills? a Baseball b Gymnastics c Swimming d Track Question below asap please. how is the kenetic energy of the particles that make up a substance different after it changes state Which measurement is not equivalent to the others? 5,000 mm 5 m 0.5 km 500 cm 100 POINTS I NEED HELP!!!!!!Some scholars say that Captain John Smith's published works were propaganda, writing meant to promote a particular point of view. What point of view did Smith's journals represent, and what was his purpose? How did Smith attempt to achieve this purpose? Explain what techniques John Smith used in his writings about Jamestown and the Native Americans to achieve his purpose. What is the slope of the line containing A(6,-2) andB(-4,4)?